R.I. 4490

Ore deposits have been located and mined along the unconformity in the
upper sections of the Warsaw, associated with Cherokee shale and Chester-
sandstone slumpages into old sink holes and erosion channels or solution
channels in. the Warsaw limestone. . Illustrations. of such deposits were the
early, shallow, rich deposits around the Joplin and Webb.City camps and the
shallow deposits in Chester sandstone at, Comnerce ,. Okla. Beds E, TP, G, #,
and K in the Warsaw have been more or, less mineralized. in all three States,
mostly along ‘solution openings in the limestone or along fracture zones. .

Mineralization of the M bed along solution channels and fracture zones
and of the 0, P, and Q beds in blanket-type mines, often termed "sheet-
ground." mines, have. provided the major production for all three states.

The R bed end the Fern Glen formation have both provided minable ores,
but only a few mines have been developed and mined to date in these form-
tions. However » they have been well distributed over the field.

The minerals mined have been sphalerite and galena for the major pro-
portion of the production, but early output coming from shallow levels in
the Aurora, Wentworth, Granby, Spring City, and Duenweg camps was largely
zinc silicate, galena, and lead carbonate. These oxidized ores usually
occurred at or above ground water level,

Solution action of. vater7/ upon limestone beds has been one of the main

agents in producing. structures in which ore bodies occur. Solution action 8/

- has produced cavernous structures along jointing and bedding planes and
along fracture zones. The process of silicification and dolomitization 9/ also
characterize the deposition of ores in the Tri-State field. In these open
structures are, deposited the ore minerals, sphelerite and galena.. These
minerals are more or less in crystalline forms, ‘sometimes filling the inter-
stices along bedding planes of chert beds, sometimes as the cementing agent
of chert, breccias and limestone fragments. Associated minerals are secondary. .
cherts, of which gray to bleck jasperoid is one of the principal types. ©
Other rock minerals aré calcite and dolomite. The latter may be of the
"rice-grained" type in either white or pink colors and also the earthly
grey to white banded variety. In some localities the iron sulfides of mar-
casite and pyrite are found, usually deposited upon the sphalerite or galene.
A form of "gouge", locally termed "selvage," occurs in many deposits and in
all the’ beds, especially where the ore deposits are under or adjacent to, shale
slumpage areas or where solution action has ‘altered the jasperoid accompanying-
the ores. This selvage, residual bitumen, sandlike crystale of gray dolomite,
secondary chert, and shale. permeate the crevices and fill in the openings in
many ore deposits. .

7/ Buckley, E. R. and Buchler, H. A., The Geology of the Granby Area:
Missouri. Geol. Survey, vol. 4, 24 ser., 1905.

8/ Winslow, Arthur, Lead and Zinc Deposits. of Missouri: Missouri Geol.
Survey, vol. “7, 1894.

9/ McKnight, .E.;T., and.others, Map.of Structural Geclogy.and Dolomitizéd.
Areas in Portions of Oklehom and Kansas Lead-Zine District: Geol.
Surveys Tri-State Zinc-Lead Investigations, Preliminary Map. (6 sheets),
19ho, . vy :

2955 --'


| OTTAWA ‘COUNTY ~~

|
|

regn

J} ——4———

e
on

10000

SCALE IN FEET
5000

&Q GENERAL OUTLINE OF MINE WORKINGS

© PUMPING PLANT LOCATIONS

T2aN

|
fo

- Pumping station locations, Oklahoma-Kansas area.

Figure 7.


R.I. 4490

the Tri-State area

TABLE 7. - Tonnage capacity, location, and status of mills in

| Tons/hr. ' Operates
No. Name capacity j on Location Status
Qklahoms
1 | Park-Walton ho Crude ore| SW1/4 NE1/4 sec. 13, T29N, R21E ; Continuous operations.
2 | Four-Mile Creek 12 do. SwW1/4 SW1/4 sec. 16, TOON, RO2E Down since July 1947.
3 | Bird Dog 150 do. SE1/4 NE1/4 sec. 13, T29N, R22E Down since 1943.
4-| Big Chief 40 Tailings | SW1/4 NW1/4 sec. 30, T29N, R23E Down July-Oct. 1947.
Operated continuously
since.
5 | Central (E.P.). 500 Crude Ore! SE1/4 NW1/4 sec. 31, TeON, R23E Continuous operation.
6 | Western 180 Tailings | SE1/ NE1/4 sec. 19, T2ON, R23E Down since July 1, 1947.
7 | Wood Chuck 80(EST) | Crude Ore! SE1/4 NE1/4 sec. 30, TOON, R23E No watchman - down.
8 | American Zinc 50 do. | NW1/4 swi/4 sec. 20, T29N, R23E Not in operation now.
9 | Cardin No. 3 100 | Teilings | swi/4 SE1/4 sec. 29, T2ON, R23E Down since July 1, 1947.
10 | Rialto ho | Crude Ore} SE1/4 NW1/4 sec. 29, T29N, R23E | Continuous operation.
11 | Evans-Wallower No. 4 90 H do. SwW1/4 SE1/4 sec. 20, T29N, R23E Down July-Aug.-Sept. 1947.
Continuously since.
12 | Sooner 120 Tailings | S1/2 NW1/4 sec. 16, TOON, R23E Ran until Dec. 24, 1947.
13 | Marcia K 4O | Crude Ore| NW1/4 SW1/4 sec. 28, T29N, R23E Down July 1947 - continuous
: i operation since.” .
14 | Royal 4o | do. |! SEL/4 SE1/4 sec. 21, T29N, R23E Ran continuously - Mine and
: custom dirt.” ‘
15 | Beck No. 1 1 35 do. SE1/4 SW1/4 sec. 15, T29N, R23E ; Down since July 1, 1947.
| { Custom mill. —
16 | Mission 18 do. SE1/4 SW1/4 sec. 23, T29N, R23E | Operated continuously.
17 | Lucky Jenny (Harris) 25 do. NWi/4 SE1/4 sec. 14, T29N, R23E Operated continuously -
. Mostly custom ore.
18 | Semple | 150 Tailings ; SW1/ swi/4 sec. 13, T29N, R23E Down since July 1, 1947.
19 | Scott (Jane E) ee) Crude Ore! NW1/4 SE1/4 sec. 13, T29N, R23E | do.
20 | C & M Mining Co. 1 25 do. . | SEL/# NEL/4 sec. 2h, T29N, R23E | Down July-Oct. 1947 - oper-
j i st ated since November 1947.
21°} Romo 25 do. | Swi/k NEL/4 sec. 6, TBN, RAYE Working on shallow lead from
i ! | : oe . ‘Admiralty.
22 | Lancaster i 10 do. ; SWi/k NW1/4 sec. 32, T2QN, R2#E | Milling clean-up dirt from

2955

- 23 -

Kroff.


R.I. 4490

TABLE 9. - Pumping plants in Oklahoma-Kansas seetion of Tri-State distriét (Cont'd)

Number] G.P.M. Inflow] Elevation ° ~ "Spill-overTM
Pump} of May March|Suc-| Dis-.j Eleva-'
No. Name of Mine | pumps} 1947 | 1948 |tion|charga tion | : Loeation | To pump number
56 {E. P, Blue Goose
ae 1 1 200] 300) 516] 836 520| SE1/4 nw1/4 sec. 30, TON, R23E} No. 55

517/\ See Seh 1 200} Down] 520} 820 505 Probably No. 37.
58 |Foley No. 3 500} 500} 417} 870 | 1/t.P. No connection.
59 |Garrett (Started . :

Jan. 1948) 3 7,000] 425] 865] 1/L.P. do.
60 |Vanatta 1 825] Down} 422] 850] T/L.P. | do.
61_ |Park-Welton 3 3,600] 3,000} 450] 810) 1/L.P. do.
629/|Alsbaugh 1 300] 490] 800 | 1/L.P. | do.
63 |Waxahache 1 | 125] 125] 745] 850 | U/L-P, | do.

i/ Lowest point in mine.
2/ These pumps in same drainage basin.
Water from 22 end 23 would go to 42.
uy Pumping for mill water only.
5/ These pumps would drain to Blue Goose No. 1, elevation 500, pump 56.
6/ These pumps would "spill over" at elevation 570 in SE1/4 SE1/4 sec. 12, 1355, R25E, and flow to Whitebird,
pump No. 43.
7/ This is a commmity pump station and intercepts water that would spread over the district.
8/ Nos. 48, 55, 56, 57, 36 and 37 seem to be in the same basin with very little difference in elevation.

o/ Being installed.

2955 . - 30 -


RI. 4490

to the charactoristics of the ore bodies and to the mining and
development practices of the district, there can be only com-
paratively smli tonneges of "measured ore." “Indicatod ore"
and “‘inverred ore" become the more important classifications.
Standard engineering practice of the Tri-State field classi-
fies ore on tho basis of “developed ore," “probable ore” and
"possible ore." The term "developed ore" really includes the
ones shown as “measured” and “indicated" of the system used
by the Buroau, while the "probable" ore more nearly parallels
the Bureauts classification of “inferred ore." The term
"possible ore" is a broader term. than the Bureau's classifica-
tion of “inferred ore.“ Bureau enginecrs shall therefore be
careful in the classification of ore blocks to conform as
closely as possible with the U. S. Bureau of Mines practice.

An allowance of 10 to 15 percent of mineralized areas shall
be deducted: for pillars and mining loss. A mill recovery of 80
to 85 percent shall be assumed, deponding upon the free milling
characteristics of the ore.

After final estimate has been made zinc shall be convorted
to 60 percent zinc concentrate and the lead to 80 percent lead
concentrate. The reason for this is that these are the conmer-
cial units for the sale of the products by the mines and the
production statistics of the field are in these units.

Upon completion of the work the results shall be posted on
the master shect and a complete file of all the data used shall
bo made up and filed in the records of the Bureau.

It will be noted that in the manual of instructions on the correlation
of drill logs, (p. 6), items 4 to 8 and item 10 rolated entirely to stratig-
raphic data. It was not possible to determine from all logs the facts cover-
ing these items but in many cases this could be done within reasonable limits.
From such facts the engineer could esteblish not only the depth location of
the ore horizons but also the beds in-the geologic section. The thickness of
Cherokec shale not only determined the old erosion surface of the Mississippian
beds but also gave evidence of sink-hole structure and solution action where
heavy slumpage became evident. This often aidod in determining ore trende ami
possible extensions of ore bodies.

The facts covered in items 5 and 6 gave evidence of possible thickness of
ore bodies in the M bed and the 0, P, and Q beds. Items 7 and 8 designate the
J bed and Short Creek oolite formations. Thése are the best “markers” from
which to correlate the entire stratigraphic section, as they were more easily
recognized, having definite characteristics. Item 8, the Short Creek oolite,
is a bed that provides the best basis for determining relative rock movements
and hence aids materially in defining formations, and the fracturing and fold
ing of the beds. From the data compiled, it was possible to make up a contour
map (fig. 2) showing the depth of the Short Creek oolite over much of the Tri-
State area not hithorto mapped. This map should provide the prospector with
valuable assistance in future drilling and development, Item 10, in addition
to showing openings and other pertinent deta, always provided for showing the
degree of silicification in the drill hole. This showing might also be termed
the “porosity” of the rocks and thus give definite information of the possi-
bility of ore deposition so far as a place for deposition was concerned.

2955 - 10 -


R.I. 4bgo

Abstracts of drill logs of XYZ mine (Cont'd.)

;Collar Grand Ore horizons Analysis
Hole eleva-|Total | Depth | "M" | Falls Thick- .
No. Remarks (_tion |depth | shale | bed | chert | "J" bed | From To ness Zinc | Lead
39 |Silicification 160-245 | 875 250 95 | 180) 220-231 185 190 5 5.25 82
Ore carried Selvage, Dolo- 190 1ge 1/2 | 21ife| 4.oo 68
mite and Marcasite. 192 1/2 | 195 21/2} 4.10 +50
195 197 1/2 | 2.1/2| 3.90 -10
| | 197 1/2 | 200 21/2} 2.30 «Oh
| 200 202 1/2 | 2 1/2! Fair | Trace
i | i Shines
40 |Silicification 190-20 877 i 243 | 55 183 | 221-232 - - - - -
| 1
41 |Silicification 170-23 875 250 | 92 | 160} 220-231 185 190 5 3.28 | 0.73
i 190 1g2 1/2 | 21/2} 3.90 28
| : 192 1/2 | 195 2ife| 2.72 210
| | 195 197 1/2 | 21/2} 1.95 | .02
| | 197 1/2 | 200 21/2] 1.80 | Trace
i H 200 205 5 Thin | Trace
| Shines
H | 220 225 5 Thin | Trace
| | | : i i Shines
| |
ke |Stlicification 173-246 87k | aks ge +180 | 221-232 : 182 187 5 6.80 40
! | ; i | 187 190 3 5.74 -10
‘i | t ! ' 190 192 1/2 | 21/2 | 3.20 Ob
| ' : i | | 192 1/2 | 195 21/2} 2.14 | .02
| | | ' | 195 200 5 Zinc -
| | | : | | i Shines
i |
43 sttttiontion 187-238 7h | 2h0 | 54 }178 | 19-232 | | - - - - -
H : i I | |

2955 - 56 -


R.I. 4490
Block 3 - Indicated ore in M bed (Cont'd)

| i | Zinc assay, | Lead assay,
Depth lrace Zinc assay | Lead assay! feet feet
D.H. 31 - Elevation 874
691 | 686 15 | 6.22 i 1.10 31.10} 5250
686 683 1/2 j|21/2! kege | +72 12.30 | 1.80
683 1/2 | 681 21/2 9.10 60 22.75 1.50
681 6Tt [4 815k 15 3laé | 1.80
677 674 13 18.11 332 | 2433 +96
! i733 208 Tel oy 11.56
Estimates of mine headings from mine examinations:
Heading at N - 15 ft. - 5.25 | 60 | 7.75 | 9.00
Heading at 0 - 15 ft. - 435 | 40 65.25 | 6.00
Heading at P - 15 ft. - 5.50 | “DB _| 82.50 11.25
Up ft. - 5.03 T 258} 226.50 | 26.25
. D.H, 2 - Elevation 873
683 678 5 3.10 | 1,02 ; 15.50 | 5.10
68 675 1/2 |21/2; 2:80 | ‘80 700 | 2.00
675 1/2 673 21/2 8.10 | “75 20.25 1.88
673 670 1/2 j|21/2 6.11 230 15.28 7
670 1/2 668 2.1/2 2.10 25. 5.25 63
5. 422 if 269 63.28 10.36
DH. 3 - Elevation 875
682 1/2 | 677 1/2 45 / 1430 5 O75 7.15 | 3.75
677 1/2 | 675 21/2, wwe | 28 | 1.200 | +70
675 672 1/2 j21/2;, 3.80 | 10 | 9.50 | 225
672 1/2 | 670 ler/2| 1.50 | 05 3.5 | 13
He a/2 | 2.53 239, 31.60! 5.83
Average 4 drill holes and 3 mine headings in examinations:
104 1/2 tt. 4.781 0.53 | 99.57 55.45
15 ft. average mine face
Block 4 - Inferred ore in M bed
| { j Zinc assay, | Lead assay,
Depth. 'Fece | Zinc assay | Lead assay | feet feet
Run of M bed ore demonstrated up to drill holes 30 and 31. Head-

ing in Run-Away-Al mine presumed to be part of same run of ore.
Run of ore inferred running between holes 32 and 33. Use average
Run-Away-Al heading and average of holes 30 and 31 for block.

Estimate of mine heading taken from files of examination of Run-Away-Al mine:

Heading X = 15 ft. - 3000 § 0.15 j 45.00
Drill hole No. 30 - 15 ft. 3.57 | +16 53.55
Drill hole No. 31 - 17 ft. 7.33 | +68 124.61

Average 2 drill holes and 1 heading:
7 ft. A755} 0.3K | 203416
16 ft. average mine face

2955 - 38 -

|
|

|

2.25

2.40
11.56

16.21


R.I. 4490

Drill-hole analysis sheets - M-bed level

Block 1 - Indicated ore in M bed

Zinc assay, | Lead assay,
Depth Face | Zinc assay | Lead assay feet feet
DH. ye - Elevation 874
692 687 5 6.80 0.40 34.00 2.00
687 68h, 3 5.74 +10 17.22 230
684 681 1/2 21/2 3.20 Oh 8.00 10
681 1/2 | 679 21/2 2.14 202 5.35 +05
13 4.97 +19 64.57 2
D.H. 41 - Elevation 875
690 | 685 5 3.28 0.73 16.40 3.65
685 682 1/2| 21/2 3.90 +28 9.75 +70
682 1/2 | 680 21/2 2.72 +10 6.80 225
680 677 1/2 | 21/2 1.95 02 4.88 +05
677 1/2 | 675 21/2 1.80 20 4.50 0
: 15 2.62 31 2.33 4.65
Estimate of mine headings in Connecticut
Yankee lease at lease line
V heading |
690 676 4 3.50 0.25 | 49.00 3.50
W heading
690 676 14 2.75 35 38.50 4.90
26 3.13 330, 87.50 B40
D.H. 38 - Elevation 874
689 ~ 684 5 4.95 0.90 2h..75 4.50
68) 681 1/2 | 21/2 3.82 “72 9.55 1.80
681 1/2 | 679 21/2 4,10 +22 10.25 55
679 676 1/2 21/2 3.08 08 7.70 20
675 1/2 67h 21/2 1.55 202 3.88 05
15 3.74 AT 56.13 7.10
D.H. 39 ~ Elevation 875
690 685 5 5.25 0.82 26.25 4.10
685 682 1/2 | 21/2 4.00 68 10.00 1.70
682 1/2 680 21/2 410 250 10.25 1.25
680 677 1/2 |- 2 1/2 3.90 10 9.75 +25
677 1/2 | 675 21/2 2.30 Oh 5.5 +10
15 113 Aa) 62.00 THO

Average 4 drill holes and 2 headings - 14 feet - 3.63% Zn, 0.35% Pb.

2955

- 36 -


R.I. 4490

Block 7 - Measured ore in stope block in Reeds formation

if ~T Zine assay | Lead assay,
Depth [Face jZinc assay lteaa assay | feet H feet
D.H. 2 - Elevation 873
639 1/2 637 21/2 1.80 » 0,05 H W500 j 0.13
637 634 1/2 21/2 1.55 H 05 3.88 | 12
634 1/2 632 21/2 2.10 10 5.25 | 025
632 éa9 1/2 |21/e 3.10 +03 7.15 | 08
€29 1/2 627 ‘21/2 4.10 -02 10.25 | 205
2 fe 2.53 05 31.03 63
D.H. 14 - Elevation 874
635 6321/2 ‘'e2i/fe 3.10 0.03 | 7.75 i 0.08
632 1/2 | 630 21/2 415 +03 10.38 | +08
630 627 1/2 21/2! 3.00 02 7.50 +05
6e7 1/2 | 625 (2 1/2 2.75 01 6.88 +0’
fo 3425 iL. 02 7-32.52 wo
D.H. 53 - Elevation 874
6h0 | 637 1/2 /2 1/2 2.20 © 0.08 j 5.50 | 0.10
637 1/2 |; 6321/2 15 3.10 ! 02. 15.50 +10
632 1/2 | 6271/2 {5 2.80 i .02) | 14.00 _ | +10
qe 1/2 2.60 202 35.00 I 230
D.H. 56 - Elevation 874
639 | 634 15 2.93 1 0,02 | 14.65 | 0.10
634 1631 1/2 j21/2 3.00 H -O1 7.50 03
631 1/2 | 629 Le 1/2 2.50 | om 6.25 203
10 2.04 | 02 28.40 16
Estimate of mine floor winzes in mine examinations: — .
* Winze - 10 ft. - 3.00 | 0605 | 30.00; 0.50
** Winze - 8 ft..- 2.50 i +02 1 20.00 16
*%* Winze - 10 ft. - 200 | 202 | 30,00 | +20
a6 ft. - 2.06 | 203, 80.00 | 86

Average 4 drill holes and 3 winzes in mine floor:
BB ft. - 2.84 | 0.03 | 207.54 | 2.19
10 ft. average mine face

2955 - he -


R.I. 4490

Measured ore

Block [7 sscceeseceesseees

Pillars in M bed level....

Pillars in 0, P, Q beds
level. ..ssesesscece
TOt@L. cee ee eeerenceoee

Recovery at 85% mill" "
ePficlency.ccccccscasee

Converting metal to 60%
zinc concentrates and
80% lead concentrates

Indicated recoveries
Indicated ore

Block Leceseseseee
Block 2.
Block 3.
Block 5,
Block 6,

Total,

Recovery at 85% mill
CELICTONCYeccceerecevee

Converting metel to 60%
zine concentrates and
80% lead concentrates

Indicated recoveries

Inferred ore

Block Yes seeseceseeccecee

Recovery at 85% mill
efPiciencysseoceseveces

Converting metal to 60%°
zinc concentrates and
80% lead concentrates

Indicated recoveries

2955

Summary
Tons ore Tons zinc Tons lead
14,256 405 y
205454 408 ho
, Ho 470 31
38,563 1,203 7
38,563 1,091 82
38,563 1,618 103
4.71% ZnS 0.288% PbS
96,163 3,491 337
65,396 2,968 170
86,672 4143 459
76,182 2,185 297
go oe 2,638 220
15,97 155425 T, 483
415,974 13,111 1,262
415,974 21,852 1,576
5.25% ZnS 0.378% PbS
28,947 1,375 98
28,947 1,169 83
“26, 947 1,948 10h
“6.736 Ins «0.3596 Fes
-~46-








R. I. 4490
Abstracts of drill logs of XYZ mine (Cont'd.)
Collar j Grand Ore horizons Analysis
Hole eleva-|Total|Depth! "M" | Falls Thick-
No. Remarks tion |depth;shale| ped | chert |"J" bed | From To ness Zinc | Lead
31 |Silicification 160-2h3 874 2h8, gh | 181 | 221-232 183 188 5 6,22 |1.10
Ore apparently in water 188 190 1/2 | 21/2] 4.92 72
course and very rich. Sheet 190 1/2 193 21/21 9.10 | .60
Ground and Reeds barren. 193 197 4 Opening-Lost
H cuttings
197 200 3 8.11 32.
200 2021/2 | 21/2| Thin. | Trace
| Shines :
32 |Silicification 190-239 872 | 250 | 56 |180 | 220-230 - - - - -
33 |Silicification 187-2he 873 2h3 54 1180 | 220-230 - - - - -
34 |Silicification 195-240 873 eke 55 4182 | 221-232 - - - - -
35 |Silicification 193-240 870 | 245 | 55 }181 | 221-232 - - - - -
36 |Silicification 190-2h0 872 eh 55 1180 | 220-232 - - - - -
37 |Silicification 194-240 875 2h5 57.1180 | 220-232 - - - - -
38 |Silicification 160-243 674 248 89 {179 | 220-232 185 190 5 4495 -90
Hole has characteristics of 190 192 1/2 | 2 ife | 3.82 72
_|a@ wall hole, 192 1/2 | 195 21/2} 4.10 .22
195 197 1/2 | 21/2 | 3.08 -08
197 1/2 | 200 ; 21/2 | 1.55 -02
| 200 202 1/2 | 21/2 |Trace |Trace
2955 - 55 -


R2ew

Neza

BARRY CO.

LAWRENCE CoO.

N921 09 JONIUMYT

SCALE IN MILES
Ea

R30W

0.

VASPER Ct

r
i

=I
JoRONOGO

ff

ote 4

AREAS FOR WHICH ORE RESERVE ESTIMATES ARE MADE

ROSE

BAXTER SPRINGS

7

z

R2GE

ROBE

R22E

Figure |. - Area map of tri-state mining district.



R.I. 4490
Abstracts of Grill lo&s of XYZ mine (Cont'd)

; Collar f | | Grand | 7 Ore horizons Analysis
Hole eleva-| Total] Depth|"M"| Falls | H j | Thick- |
No. Remarks tion |depth shale/bed| chert | "J" bed | From To ness Zinc Lead
53 | Silicification 188-238 873 2u5 68 |178)221-23 221 226 5 1.92 220
226 228 1/2 | 21/2} 3.10 12
i 228 1/2; 231 21/2} 2.20 02
Hl 231 233 2 1.80 Trace
i 233 235 1/2| 21/2] Thin | Trace
| Shines
54 | Silicification 190-232 875 240 61 181, 201-232 - - - - -
55 |Silicification 160-255 87% | 257) 95 |187 ooh-03l (| 190 195 5 4.00 +38
(| 195 197 1/2 | 2 1/2 | 3.02 27
"Mw" bed (| 197 1/2 | 200 21/2 | 7.20 +20
(, 200 202 1/2 | 2 1/2 | 5.03 +20
({202 1/2 | 205 21/2 | 3.00 Oh
Sheet (/22h 229 5 3.10 2h
! Ground (| 229 231 1/2 | 2 1/2 | 2.80 .10
| ({231 1/2 | 234 2 1/2 | 2.92 110
H (1o34 236 1/2 | 21/2 | 2.20 04
(| 236 1/2 }eni 1/215 3.10 02
; Reeds (,241 1/2 | 2h6 1/e | 5 | 2.80 +02
4 7 (lane 1/2 | 2ah9 21/2 ; 1.30 01
i (,2h9 25k 5 1.22 Trace
4 '

2955 - 58 -


R.I. 4490
Abstracts of drill logs of XYZ mine (Cont'd)
Collar | Grand Ore horizons Analysis
Hold eleva-| Total} Depth| "M"} Falls Thick-
No.| Remarks tion | depth| shale|bed} chert |"J" bed | From To ness Zinc Lead
4h | Silicification 175-240 876 | 2kk | 57 |179}220-231 184 200 16 Traces; Fair
Shines
220 225 5 1.93 +72
225 227 1/2 | 21/2} 2.71 -20
227 1/2) 231 3 1/2] 2.50 Oh
231 235 y Thin Trace
Shines
45 [Silicification 190-238 877 | eke | 52 [182 j221-233 - - - - -
46 | Silicification 190-238 878 | 2ho } 50 1183 j221-232 - - - - -
47 |Silicification 191-235 877 | 2ho |} 50 |182 j220-232 - - - - -
48 | Silicification 175-236 877 | 245 | 60 {181 |220-233 - - - - -
kg |Silicification 187-235 878 250 51 1183 je22-234 - - - . .
50 |Silicification 195-240 880 | 250] 48 {18h le22-235 - - - - -
51 |Silicification 200-2h2 875 | 248 | 52 1175 219-232 - - - - -
52 |Silicification 190-240 87h 250 | 58 [178 pai-232 221 226 5 2.87 | 0.08
226 228 1/2 | 21/2 | 3.00 12
228 1/2] 231 21/2 | 2.25 +O.
231 232 1 1.82 +02
232 23! 1/2 |21/e | Thin | Trace
Shines
2955 - 5T -




R.I. 4490

TABLE 6. - Tri-State mine production of crude ore, percent of zinc and lead
concentrate recoveries sijaverage. values per ton of concentrates,
average value~per:rton of ‘crude ore for, zinc and lead content,
and average: estimtéed‘cost of mining and milling per ton of
crude ore, by years, from 1935 to 1947

~y . ; Estimated

mining and

Average value | Values recovered|. milling

Percent concen-| of. concentrates per ton cost per

trates in ore per ton of crude ore ton of

Year |Crude ore |Zinc|Lead| Total|” Zinc Lead | Zinc| Lead |Total|crude oree/
1935/4 284 ,900/6 4411.06] 7.50] $ 28-87] $ 42.30 |$1 84 $0.45 [$2 31 $1.50
1936|5,238,400|6.03| .97| 7.00) 31.84) 52.41) 1.92) 50] 2.42 1.65
1937|6,427,000}5.3512.01| 6.36} 41.59] 69.56 2.23 -70| 2.93 1.90
193815 ,469,900|5.51! .94{ 6.45) 30.54 51.98/ 1.68! 49} 2.17 1.65
1939|5,754,000|5.91} .99) 6.90] 34.66) 59.00} 2.05) .58] 2.63 1470
1940]6,536,700|5.43| .70| 6.13] - 42.341 59.20] 2.3 4X] 2.71 1.75
1941 }8,091,579|5.00} .65} 5.66] 50.33] 67.15} 2.52) .44) 2.96 1.90"
1942 18,537,337 [4.411 252) 4.93] 67.79} 99.53] 2.99.52] 3.51 2125
1943 |9,430,812 |3.39: 49; 3.88] 101.01} 120.77| 3.42] .59) 4.01 2.50"
19d 19,128,388 /3.31! ko} 3.72] 103.72] 118.65] 3.431 47] 3.90 2.60
+1945 17,441,345 12.93, 43! 3.36] 110.48) 125.00} 3.2h|' .54] 3.78 2.75
1946|8,271,512|2.72, 37! 3.09) 116.15] 164.81] 3.1 -61} 3.77 2.85
19k? 6,2h2 426 12.91 51) 3.46] 101.39] 192.22] 2.95, .98] 3.93] 3/304

1/ ‘The.,term "concentrate recovery" is used in the Tri-State District to
>. signify the amount of zine or lead metal recovered from the ores in
terms of 60-percent’.zinc concentrate and 80-percent lead concentrate.
2/ These costs are operating costs only and do not contain the items of de-
“<pletion, ‘depreciation, and.royalty. These items usually approximate’
a minimum of 15 percent of the total cost. :
3/ 1947 shows figures for only 10 months: January to November; costs from
January to July - $2.98; from July to November - $3.27.

DISTRIBUTION OF PRESENT MILLING FACILITIES

The Tri-State district, as of December 31, 1947, had, including those
idle and operating, 49 concentrating plants ranging from 8 to 500 tons per
hour capacity (fig. 6). Of this total 43 were equipped to handle crude ore,
while 6 were designed to handle tailings. The combined mill capacity of the
.entire’field was 16,784 tons of crude ore per 8-hour shift, excluding one
“small mill at Spurgeon, Mo., for which no ore reserves could be estimated.
If the six tailing mills: were converted to handle crude ore, approximately
,400 tons per hour of daily capacity could be added. However, these plants
would have to be redesigned by the addition of coarse-crushing equipment to
be thus employed. The tailing plants are all in the Picher, Okla., area and
still have e considerable reserve of tailings to treat, in addition to the
current production of the ore plents. For this reason, the tailing-plant
capacity is not considered in discussing the treatment’ of ore reserves.

2955 - 21 -


R.I. 4490

The origin of the ores in the Tri-State district is a highly contro+
versial question and has been discussed at length by Winslow,10/ Haworth,11/
Bain =) Van Hise,12/ Buckley and Buehler,13/ Siebenthal,14/ and Fowler and
Lyden .1! .

However controversial the origin of the ores, it is apparent that the
ore bodies do bear a definite relation to geologic structure. The Federal
Geological Survey and the Geological Surveys of Missouri and Oklahoma’ have
mapped the Seneca fault, extending from a point northeast: of Spurgeon, Mo.,
southwestward to a point near Pryor, Okla. This is the one major fault in
the district. Smith and Siebenthal, in the Joplin District Folio 148, pub-
lished in 1907, mapped a large portion of the district and contoured the top of
the Grand Falls chert. One map gave the mined areas in relation to the con-
tours of the Grand Falls chert. and the surface topography as well as the sur-
face geology. Later, C. E. Siebenthal of the Federal Geological Survey,
issued a preliminary series of contour. maps of the Picher area, showing the
relationship of the ore bodies to the subshale surface and discussed the
structures so defined. These maps outlined the "Miami Trough," one of ‘the
main structural features of the Picher field, and showed the. relationship of
deep-shale slumpages to the ore bodies of that area, Others have since ex-
tended the Miami Trough line to the northeast and outlined the Bendelari
Trough, extending west from the Miami Trough.

In 1942, the Missouri Geological Survey published a new series of maps
of the Missouri section of the district, showing in much greater detail the
surface geology in relation to the actual underground mine workings and top-
ography.

In 1940, E. T. McKnight and others of the Federal Geological Survey
issued a series of six sheets showing portions of the Oklahoma and Kansas
section, which pictured the relationship of dolomitization and structures to
ore bodies.

The consolidation of this information on maps by the Bureau of Mines
engineers has been very helpful in determining ore trends, extension of
mineralized areas and expectation of ore bodies at different horizons along

i0/ Winslow, Arthur, Lead and Zinc Deposits of Missour: Missouri Geol.
Survey, vol. 7, 1894,

11/ Haworth, Erasms, Special Report on Lead and Zinc: Kansas Geol. Survey,
vol. 8, 1904. . .

le/ Bain, H. F., and Van Hise, C. E., Preliminary Report on the Lead. and. Zinc
Deposits of the Ozark Region: Geol. Survey, 22d Ann. Rept., part 2,
‘1901, pp. 23-228.

13/ Buckley, E. R. and Buehler, H. Ae, The Geology of the Granby Area:
Missouri Geol. Survey, vol. 4, 2d ser., 1905.°

14/ Siebenthal, C. E., Origin of the Lead and Zinc Deposits of the Joplin
Region: Geol. Survey Bull. 606, 1916, 283 pp. .

15/ Fowler, George M., and Lyden, J. P., The Ore Deposits of the Tri-State
District: Trans. Am. Inst. Univ. and Met. Eng., vol. 102, 1932,
pp. 206-251. .

2955 -B-


R.I. 4490

Assuming that the 2-percent. cut-off would be proportional for the
entire tonage calculated at the 1 1/2-percent cut-off, the tonnage would
compare as follows, in tons:

1 an H Pb
“ore | concentrates concentrates
Ke 1 1/e-percent cut-off | 66,100,000 | 2 02,433 312,689
At 2-percent cut-off 40,221,850 | 1,781,885 227,952
Difference 25,878,150 | 620,548 8h 697

Qn this basis, the 2-percent cut-off tonnage of 40,221,850 tons would
yield 1,781,985 tons of zinc concentrates and 227,952 tons of lead
concentrates.

If price and cost conditions force the mine operators to select their
oreson this basis, there would be lost to the country 620,548 tons of zinc
concentrates and 64,697 tons of lead concentrates. Since June 30, 197,
the operators have been operating on the basis of selective mining, leaving
the lower-grade ores in the ground.

If selective mining is continued in the Tri-State district on the basis
of a 2-percent metallic cut-off and no new ore reserves are developed, the
ore that remains will drop to 2 grade of 1.44 percent zinc and 0.26 percent
lead and will require a price of $158.73 per ton of zinc concentrates and
$195 per ton of lead concentrates to produce them, This estimate is based
on an estimated over-all mining and milling cost of $3.50 per. ton, with an
allowanco of 10 percent for royalty to the land owner and a provision of
$0.50 per ton as a minimum profit to the operator. In addition, if a low-
price period should close the mines at any time long enough for the river
to fill with water, it would be necessary to add to the above costs all the
costs necessary for pumping and equipment, and the cost of its operation,
to bring the district back to production. The entire district would thus
be in the position of the Oronogo-Webb City-Duenweg camps, which have long
been under water.

Recent price increases have only partly relieved the situation.
ORE RESERVES NOW UNDER WATER

Table 5 shows the total ore reserves now under water and unavailable
for production until large-scale drainage is undertaken. Kansas and
Missouri have large areas of productive land that were abandoned by mine
operators when the rich strikes of ore were made at Picher}.Okla., in 1914
to 1918, and more recently additional areas were abandoned when the price
subsidies were removed in June 1947. A small portion of the tonnage consists
of newly drilled tracts upon which exploitation has not yet begun. Approx-
imately one-tenth of these reserves lies in Kansas in the old Galena, Crest-
line and Lawton camps, while nine-tenths are in Missouri in the old Webb
City-Duenweg, Joplin, and Neck City camps. The amount of ore reserves now

2955 -17 -


ls ghtgt WEBB CITY -CARTERVILLE
ZONE OF FRACTURING

MELROSE

r
MCMC" CARTHAGE -NECK CITY — 35
ZONE OF FRAGTURING s

"OW" CREST OF JOPLIN ANTICLINE

2R4

R2IE R22E R23€ R24E R33W R32W R3iw R30W
x BOSTON = T
4 ~—— |__| esarow co |
0 cmicoree NASHVILLE vASPER CO.
ne
Ji _|cnawroro co, GHEROKEE ORES, rorTM BUASPER 30
‘3 “|GHEROKEE 60. we ‘
ROSELAND (73,
COAL
t ce r
2 Nansen AREA 29
LEGEND
KNOWN ZINC-LEAD DEPOSITS
DIRECTION OF ARTESIAN .
PAE ne 3
SISBENTHAL, Bee BULL.606, 3s sey
W USES, ye
9 28
g N
| CONTOUR LINES AT BASE OF
 MISSISSIPPIAN. ADAPTED FROM
S SHBENTHAL, CE, BULL.606,
P USS, AL.s BENDELARI Nessortana
TROUGH OPIN ~
JOPLIN ZONE OF FRACTURING on wasper co | 3,
¢ NEWTON co |”

T
8 N.
| Fineosno es
SCALE IN MILES an ©
6 3 7
a
R21€ R22E R23€ R25E R34W R33W R32W R3iW R30W

Figure 4.

- Map showing principal geologic features of tri-state district.



R.I. 4490

If the present installed mill capacity were properly distributed over
the district and operated double shift, 8,392,000 tons of crude ore could
be treated per year of. 250 days. At this rate, the present known estimate
of 66,100,000 tons of crude ore could be mined and treated in 7.9 years.
The district would be depleted by December 1955 if no new ore reserves were
developed. If operated at such a schedule, a production could be anticipated
of 304,630 tons of 60-percent zine concentrates and 39,440 tons of 80-percent
lead concentrates, assuming the average concentrate recovery of 3.63 percent
for the zinc concentrate and 0.47 percent for the lead concentrate. Such a
production would be equivalent to a metallic content of 182,778 tons of zinc
and 31,552 tons of lead.

Teble 7 shows, by States, the name, tomage capacity, type of feed, loca-
tion, and operating status as of January 1948 of the mills in the Tri-State
areas

Table 8 shows the distribution of the mills and their relative daily
capacity as compared with the ore reserves in other localities. From a study
of this table, it becomes apparent immediately that an annual output at the
rate of 8,392,000 tons is impossible until there is established a better
distribution of the mill capacity with relation to the localities where the
ore reserves are found. .

Table 8 also shows the district divided into mill groups for analysis.
These groups are arranged as nearly as possible with reference to the esti-
mated reserves, which, because of isolation and available transportation,
should be milled in the vicinity of their location, The table shows the mill
groups, number of mills, capacity for an 8-hour shift, tons of reserves,
shifts required to deplete the reserves, and years of expected life with
present mills operating as noted above. Also there is a schedule of pro-
duction showing the additional mill capacity required to balance the produc-
tion so that the 8,392,000 tons yearly output may be maintained and all
estimated reserves used up by December 1955.

The Picher field, involving portions of Oklahoma and Kansas, has 25 of
the 43 miles; these mills represent 73.31 percent of the available capacity
of the Tri-State district, while the tributary ore reserves are only 5h..65
percent of the total in the field. This leaves only 18 mills in widely
separated and distant areas in Missouri and Kansas to handle the remainder
of the reserves. These 18 mills represent only 26.69 percent of the avail-
able capacity and is all that is left to treat 45.35 percent. of the reserves.
These plants are not evenly distributed in relation to known reserves,
designed to treat the ores efficiently, or in line with the economic con-
ditions of certain areas. The areas involving Oronogo, Webb City, and Duenweg
have such large reserves that the available mills, even were they usable on
such areas, could not handle them over a period of 48 years. The ore reserves
still in the Lawton and Waco camps could not be handled with their available
mills in 14 years. In order, therefore, to make these ores available in the
next 5-year period, new and modern large-capacity units in line with the eco-
nomic conditions prevailing in those camps would have to be provided. Other
camps needing new plants to handle the available reserves are Crestline in
Kansas and Joplin, Neck City, Alba, and Winchester camps in Missouri.

2955 =~ 22 -




R.I.

4h90

Abstracts of drill logs of XYZ mine (Cont'd)

; Collar t i Grand Ore horizons Analysis

Hole| eleva -|Total| Depth "M"| Falls Thick-
No. Remarks tion |depth! shale bed| chert | "J" bed |From To ness Zinc Lead
56 |Silicification 160-254 874 | 254 |. oh | 185|223-235) (|187 190 3. . | 4.32 +32
(1190 192 1/2 | 21/2 | 3.92 28
(j192 1/2 | 195 21/2 | 6.10 31
TM" ped (1195 197 1/2 | 21/2 | 3.44 20
({197 1/2 | 200 21/2 | 2.93 10
({200 202 1/2 | 2 1/2 | 2.80 +03
(j202 1/2 | 205 21/2 | 1.15 02
(]223 228 5 3.96 33
Sheet { 228 230 1/2 | 2.1/2 | 3.14 09
Ground (1/230 1/2 | 233 21/2 | 2.72 Ob
(1233 235 2 1.95 +02
(1235 2ho 5 2.93 +02
({2ho ake 1/2 | 21/2 | 3.00 | .oL
Reeds ({242 1/2 | 2h5 21/2 | 2.50 01
(12k5 250 i 5 1.00 | trace
(}250 252 1/2 | 21/2 | Thin | Trace

Shines
2955 - 59 -


R.I. 4hgo

Block 4 - Inferred ore in M bed

. 25,128 sq. ft.
. 2,513 sq. ft.
. 22,615 sq. ft.

ALOR sc csecsecccecercvccsceccveseres

Less 10% for pillars etc. .....
Net mining Aree. ceccccsceccesseserccccececes
Average thickness ore body (see drill hole

ANALYSIS )secssecsecececcreseeerecceees 16 ft.
Cubic feet in ore DOdY..seeseceseseees . 361,840 cu. ft.
Tons of ore @ 12 1/2 cu. ft. to OMe esercvecesere 28,947 tons
Average percent of zinc in ore (see drill hole

ANALYSIS). ccecevnvereveseseceseccvcescocnseseues 4.75% Zn
Avernge percent of lead in ore (see drill hole

ANALYSIS). ccececcseccvececeresrcccceeesssensseses 0.34% Pb
Tons of zine in ore. . 1,375 tons
Tons of lead.in orecsercrccpsvccscreccccescensecves 98 tons

Block 5 - Indicated.ore in 0, P, Q beds or "sheet ground”
ALOR ccecccccer nce crcccronseesensssneseeensseeseese 88,128 sq. ft.

Less 10% for pillars etc. .. ose 8,813 sq. ft.

Net mining aredsererecarecccssecccacevoceseveres 79,315 sq. ft.

Average thickness ore body (see drill hole

analysis).eeceseee
Cubic feet in ore body...., see
Tons of ore @ 12 1/2 cu. ft. to ton.
Average percent-of zinc in ore (see drill hole

analysis)...s.6 eee cecenceee 2.87% Zn
Average percent of lead in ore (see drill hole

ANALYSIS) ceceseccvecececacescesceeveesecesasenes 0.39% Pb
Tons of zinc in ore. 2,185 tons
Tons of lead in ore.. 297 tons

dave 12 ft.
wees 951,780 cu. ft.
76,142 tons

Block 6 - Indicated ore in 0, P, Q beds or "sheet ground”

Se 106,020 sq. ft.
Less 10% for pillars etc. .. 10,602 sq. ft.
Net mining avea.cccesccacacccecccecccsceccvovers 95,418 sq. ft.

Average ckness ore body (see drill hole ,

anal, eee . % 12 ft.
cubic feot in ore DOD se recscccccees . 1,145,016 cu. ft.
Tons of ore @-12 1/2 cu. Pt. to tonsecsceeceveeres 91,601 tons
Averago eent of zinc in ore (see drill hole

ANALYSIS) cesses 2.88% Zn
Average percent of lead in ore (see dril

ANALYSIS )ocececcercccasccvccsereesrecsseesseeere 0.24% Pb
Tons of zinc in ore. . 2,638 tons
Tons of lead in ore... : 220 tons

2955 - ay -


R.I.

2955

490

The engineer shall obtain records of all drill logs,
assay sheets and all other data useful in delineating loca-
tion and values of any ore reserves. As check material,
the engineer shall ascertain mill recoveries from the plants
where the ores were treated.

If the mine manager cannot give copies of this evidence
to the engineer for use in the Bureau's office, the engineer
shall then arrange to study these records in the office of the
company and make abstracts and copies of all records and maps.
This abstract shall show the 10 principal features of any hole
drilled in the Tri-State field. These may be arranged on a
columnar pad of 10 colums supplying the following information:

1. Hole number.

2. Elevation collar of hole.

3. Its total depth.

4, Thickness of Cherokee shale.

5. Top and bottom of M bed.

6. Top and bottom of 0, P, and Q beds.
7. Bottom of J bed.

8. Top and bottom of Short Creek oolite.

9. Define all mineralized ore horizons by levels and
thickness, and their values by assays, if given,
or by the written log description if the hole was
not asseyed. See that all assay values are shown
in metallic terms.

10. Under a "Remarks" column - state all pertinent
facts as to silicification, fracturing, openings
found, either natural or drifts, unusual associ-
ation of minerals, etc.

When estimates are made of the ore horizons in the holes,
it will be found necessary to use careful judgment. When the
holes have assays for all samples shown, of course use these
assays, translated into metallic terms for both zinc and lead.
It will be noted that many of the assays shown on drill logs
are in terms of 60-percent zinc sulfide and 80-percent lead
sulfide. Other assays are shown in pure sulfides, and in such
cases the values are 67 percent zinc and 86.6 percent lead. A
few of the companies report their assays in metallic values.

-6-


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444té—-H—-- Ry t4445 lL tll
SOIC ECE Recess
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-L4edN Ye —tee-gsyeartti yl i it [ids
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Figure 6. - Map of tri-state district showing location of concentrating plants.



R.I. 4490
Abstracts of drill logs of XYZ mine (Cont'd)
Collar Grand Ore horizons ‘Analysis
Hold eleva-|Total| Depth) "M"] Falls Thick-
No Remarks tion [depth] shale|bed| chert |"J" bed | From To ness Zinc Lead
14 | Silicification 160-255 874 | 260] 100/180] 220-230] 115 (| 162 187 5 5.10 | 0.15
"J" bed showing doubtful on (| 187 189 1/2} 21/2] 4.32 16
account of solution and (189 1/2 192 21/2) 4.12 15
alteration. Selvage found (| 192 194 1/2] 21/2] %.20 2
down into top of sheet (| 194 1/a| 197 2 1/2 3.90 10
ground. (¥197 200 3 Zine | Trace
( Shines
(| 220 225 5 3.10 +10
(| 225 227 1/2 |.2 1/2 } 2.10. .07
(| 227 1/2] 230 21/2 | 2.89 06
(| 230 235 5 Zinc Trace
( Shines
(1239 ahi 1/2 | 21/2 | 3.10 03
({241 1/2] aby 21/2 | 4.15 +03
(| bh 2h6 1/2 | 21/2 | 3.00 202
(j246 1/2] 2h9 21/2 | 2.75 01
(j249 25h 5 Zine | Traces
( Shines
15 |Silicification 170-242 875 250 gh |180}220-232; 116 (185 190 5 Good Good
( Shines | Shines
(;190 192 1/2 | 21/2 | 4.10 80
({192 1/2] 195 21/2 | 5.00 20
TM" bea (1195 197 1/2 | 21/2 | 4.15 18
(197 1/2] 200 21/2 | 3.00 ..| .07
§ 200 202 1/2 | 21/2 | Thin | Trace
Shines
2955 -51-


R.I.

4490

Abstracts of drill logs of XYZ mine (Cont'd)

~[ Collar Grand Ore horizons Analysis
Hold eleva-| Total) Depth] "M"| Fells Thick-
No. Remarks +ion_|depth| shale|bed| chert |"J" bed | From To ness Zine Lead
18 | Silicification. 190-2h0 877 2h5 48 | 180j220-232| 115 195 200 5 Trace| Trace
220 230 10 Trace| Trace
19 | Silicification 185-240 872 | 245 |. 54 |179]219-230 219 230 1 Zinc | Lead
Shines; Shines
20 | Silicification 195-20 874 250 55 |180 }220-231 - - - - -
21 |Silicification 197-240 873 2h3 55 }180 |220-230 - - - - -
22 |Silicification 194-2ho 870 | 245 | 50 1178 [218-230 - - - - -
23 |Silictfication 190-239 873 | 250 | 59 1182 |220-232 220 232 12 Zinc | Lead
Shines | Shines
2h | Silictfication. 170-240 876 | 250 { 89 1183 je21-232 ({187 192 5 7.00 | 0.90
192 194 1/2 | 21/2| 5.60 332
"" bea (1194 1/2] 197 21/2) 3.06 10
197 199 1/2 | 21/2} 3.10 Ob
(1199 1/2} 202 21/2| 2.80 | Trace
({221 226 5 1.10 20
Sheet (|226 228.1/2 | 21/2} 1.00 *.20
Ground (|228 1/2} 231 21/2 85 «Ok
({231 232 1 1.00 Trace
(}232 234 1/2 | 21/2} 1.29 | Trace
Reeds (}234 1/2! 2h0 5 1/e| Thin | Trace
( Shines
2955 - 53 -



R.I.

4hg0

Abstracts of drill logs of XYZ mine (Cont'd)

“Collar i | Grand | in Ore horizons Analysis

Hold | eleva-|Totali Depth "M"| Falls Thick-

No. Remarks tion |depth shale| bed| chert |"J" bed | From To ness Zinc Lead

T

25 | Silicification 180-239 876 2he 92 | 180} 220-232 187 192 5 8.00 332
Short Creek oolite at 178- 192 19h 1/2} 21/2| 6.02 +20
180. 194 1/2] 197 21/2| 3:26 -08

197 199 1/2} 21/2; 4.00 602
199 1/2] 202 21/e} 2:72 | Trace
202 207 5 Trace | Trace
220 225 5 Fair | Good
Shines | Shines
'

26 | Silicification 169-245 | 877 | 250; 90 | 180) 221-232 185 190 5 6.82 232
Sheet Ground and Reeds not, ! 190 192 1/2| 21/2] 4.20 +20
mineralized, very tight. 192 1/2} 195 21/2! 2.81 17

195 197 1/2 | 21/2} 3.00 +10
197 1/2| 200 21/2) 2.65 +03
27 | Silicification 195-235 | 875 2h3 48 | 181|220-230 - - - - -
t
!

28 | Silicification 192-235 874 2ho 48 | 180]}220-230 - - - - -

29 | Silicification 191-235 872 | 240; 58 |180)220-230 - - - - -

30 | Silicification 160-245 871 1250 | 88 1179/219-231 185 190 5 4 82 he
Selvage, Marcasite, Calcite| 190 192-1/e | 21/2 | 3.20 +10
and Dolomite followed all | 192 1/2 | 195 21/2 | 2.88 02
the way with the ore. | 195 197 1/2 | 2 1/2 | 2.90 02

| -197 1/2 | 200 21/2 | 2.80 | Trace
} sot i 200 202 1/2 12 1/2 | 1.12 | Trace
2955 - 5 -


R.I. 4490

Table 6 is a statistical record of the Tri-State production of crude
ore and concentrates, with average values and estimated costs of production
from 1935 to 1947. These statistics were compiled from the annual reports
of the Economics and Statistics Division of the Bureau of Mines for produc-
tion and values, while the costs were abstracted from annual reports of the
Tri-State Zine Ore Producers Association. Since very little new prospecting
and development work have been carried on during the period, this record
shows clearly the general depletion of higher-grade ores from year to year
until 1943, when the district reached a point where the mjor portion of the
output was marginal ore. This marginal ore production would have been im-
possible during the wartime years had no subsidies been provided for the
producers. The depression years 1935 to 1939 indicate that, with the
extremely low prices then prevailing, producers selectively mined their
richer ores to maintain a minimum employment of labor and keep the mines open
and drained. As war demands rose, it was necessary to increase the production
of crude ore; and the recoveries of zinc and lead progressively went downward,
reaching a minimum of 3.09 percent combined zinc and lead concentrates. When
the subsidies were withdrawn June 1947, the number of active mills dropped
trom 0 to 22, The miners immediately resorted to selective mining again and,
with lead prices as an extra incentive, raised the recovery from 2.98 percent
zinc concentrates and 0.46 percent lead concentrates in June 1947, to 3.51
percent of zine concentrates and 0.79 percent of lead concentrates in December,
1947. There was a decrease of 53.67 percent in tonnage of crude ore , with an
increase in percentage of zine recovery of 17.78 percent and of lead to TL. TH
percent. The last 6 months of operation in 1947 illustrate the rate at which
the remaining reserves are so reduced in grade by selective mining that, if
it is continued long enough, many tons of the reserves eventually will be lost
by becoming submarginal. and below any conceivable economic recoverable value.

Table 6 also indicates a constant upward trend in costs per ton of crude
ore produced. The costs are based on actual cost statistics of 40 to 60
percent of the production of the Tri-State district as compiled by the Tri-State
Ore Producers Association, plus such additional data as were gathered by
Bureau of Mines engineers. They do not contain the factors of depletion,
depreciation, and royalty but are operating costs alone.

Into the costs of concentrate production enters the factor of relative
recoveries of zinc and lead concentrates as'well as the operating cost per
ton of crude ore. To illustrate this fact and to indicate the relative price
levels required to mine different grades of ore at different costs per ton of
crude ore, figure 5 has been made. Figure 5 is a graph so constructed that
the price required per ton of concentrate can be determined for any grade of
ore from 2 to 8 percent, at varying costs per ton of ore mined. This graph
considers the payment of 10 percent royalty to the land owners and provides
$0.50 per ton of ore as profit to the ore producer but does not cover
depreciation and depletion.

2955 ~ 20 -


R.I. 4490

Segregation of the ore estimates into classes and grades by localities .
and upon different cut-off factors, together with the ores shown in accessible
mines and those now under water, raised. the problem of the utilization or loss
of these estimated reserves. Studies of milling facilities were made and
plotted. Milling facilities are not distributed over the area in relation to
the ‘present developed reserves,.and hence..large blocks of ore reserves mst
await the building of such facilities. before they car be utilized economically.

Study of the results of the estimate and of the records of the field has
emphasized the fact that two world wars and a depression created conditions
that resulted in selective. mining of the highest grade of ores available in
the mines to meet war-time demands of the Netion during the war periods and
to permit mining at all under depression prices. Similarly, exploration and
development were minimized for lack of labor until grades of ore reserves
left in the mines have dropped to near marginal levels, sreating difficult .
operational »roblems. The study reported in this manuscript points out the
need for constant consideration of the preservation of the Nation's ore
reserves and of greater effort by private capital to develop ore that will
keep itself in business and the Nation prospering.

INTRODUCTION

The Bureay of Mines his been concerned with estimates of the ore réserves
of the Tri-State district since the early part of 1942. W. D. McMillan, an
.engineer with the Mining Division of the Bureau of Mines, in cooperation with
A. J. Martin of the Economics Branch, made a hurried survey of the field in
1942 and compiled from the dtstrict's active mine operators their estimates
of ore reserves available to mill groups then active in the district. In 19k3
the Oronogo-Webb City-Duenweg area was examined and an estimate of the ore
reserves was made at that timo. In 194) the Bureau of Mines assigned Otto
Ruhl, a mining engineer statdoncd at Joplin, Mo., to cooperate with William Y.
Westervelt, a representative of the War Production Board, to revise the
original estimate in view of the new conditions then prevailing.. The study of
the early estimates and their obvious limitations to the then active mill
groups induced the Bureau of Mines to estimate the ore reserves of the entire
field, based on sound engineering practice in which all the evidence and
factors employed would be surveyed by a single agency under controlled con-
ditions. Active work on the individual properties was begun in October 1945.
A field force of two to six mining engineers was employed on the project .3/

An interim report of investigations hy was issued in August 1946 which
revised ‘earlier rcports up to December 31, 1945. Work was continued until

3 / The following personnel worked on this project during the progress of the
work; Otto Ruhl, Simeon A. Allen, Louis C. Brichta, C..C. Knox,
S. P. Holt, Ottey M. Bishop, Neal M. Muir, and Homer J. Ballinger,

mining engineers; and John L. Woolsey, and George W. Lester, engineering
aides.

4/ Ruhl, Otto, Tri-Stete Zinc-Lead Ore Reserves: Bureau of Mines Rept.
of Investigations 3922, 1946, 71 pp.

2955 -3-




R.I. 4490

In order to illustrate and demonstrate the method of examination, re-
cording, abstracting logs, and calculation of reserve, an example is shown
in the Appendix. The example is of a purely fictitious and hypothetical
mine, since such data procured from the ‘operators were strictly confidential.
The conditions prevailing in this hypotheticél case are typical of the
district.

TRI-STATE DISTRICT AREA AND ITs GENERAL GEOLOGY

The Tri-State area described in this report covers approximately 1,188
square milés and extends from the Wentworth camp in Missouri on the east to
the Neosho River, west of the Melrose camp in Kansas, on the west; and from
Neck City camp on the North Fork of Spring River on.the north to Newtonia,
Mo., on the south, The area lies on the northwest flank of the Ozark uplift
and slopes in’a generally westward direction to the valley of Spring River,
then rises gently to the west over the divide to the Neosho River in Kansas
and Oklahoma. The surface elevation drops from approximately 1,200 feet
above sea level on the east to 800 feet on the west.

Spring River, just inside the northern rim of the district and flowing
southward through the western portion of the field with its tributaries,
drains the major portion of the area. The Neosho River skirts the west rir
of the district, and ea few streams flow into it. Erosion of these streams
gives configuration to the land surface and determines the main topographic
features of the field. The present land surface east of Spring River
approximates the old unconformity between the Pennsylvanian formations above
and the Mississippian rocks below. Many outliers of the Cherokee shales
and sandstones, filling old sink holes and erosion valleys, occur all over
the field from Spring River eastward beyond the limits of the map accompany-
ing this report. This area presents a typical Karst topography and clearly
illustrates the solubility of the limestones of the Mississippian beds,

West of Spring River the land surface formation is the Cherokee shale, and -
the topography becomes rolling prairie, broken only by the Neosho. River and
a few meandering creeks that flow into it.

The stratigraphic correlation of the sedimentary formations down to the
Cotter limestone is shown in figure 3. The-sections showing the average
Webb City area and the average Picher area are after Fowler} / while the
section of the average Melrose area is after Knox, of who conducted an exten-

sive development project on the Melrose camp from 1943 to 1947 for the Bureau
of Mines.

Figure 3 gives the succession of the rock beds, with their relative .
thickness and sea-level elevations. It algo indicates the unconformity on top
of the Warsaw limestone and the disconformity at the J and K beds in Warsaw.”

D/ Fowler, George M., Tri-State Geology: Eng. and Min. Jour. vol. 144, No. ii,
pp. 73-79, 1943. ‘ .

6/ Knox, Clinton C., Investigation of the Melrose Zinc-Lead District, Ottawa
County, Okla.', and Cherokee County, Kans.: Bureau of Mines Rept. of
Investigations 4337, 1948, 92 pp.

2955 -ll-


R.I. 4490

A special debt is owed to the mining engineers of the field, all of
whom have given aid to the project. Especially have the professional en-
gineering firms of W. M. Stewart and Karl L. Koelker aided the work by
permitting their old map files to be consulted and by supplying records of
drill logs that were available from no other source. Other engineers who
have contributed liberally of their time and records were Victor Rakowsky,
Geo. M. Fowler, Robt. K. Stroup, J. P. Lyden, S. C. Sandusky, L. G. Johnson,
Wm. 0. Bilharz, Leonard Parker, Carl Plumb, Guy L. Waring, and A. J. Martin.
The Zine Ore Producers Association, through its secretaries, Fred Netzeband
and Howard Gray, aided in locating mine and land owners and supplied much
statistical matter of the field.

For the estimates of ore reserves upon the larger portion of the
restricted Indian lands in Oklahoma, the Bureau is indebted to Earnest Blessing
and Robt. S. Fulton of the staff of the Federal Geological Survey office in
Miami, Okla.

WORK BY THE BUREAU OF MINES

In preparing its estimates, the Bureau of Mines studied and correlated
68,598 drill logs. Of these, 46,726 drill logs were copied and are on file
at the Joplin office of the Bureau of Mines. In addition, correlation sheets
(abstracts) of 21,872 drill logs summarizing drill holes of which no copies
were made are also on file. The location of all drill holes, together with
the mine workings of all properties, are shown on individual mine maps on
file in the Joplin Office. These drill logs and maps represent a reservoir
of information that may prove valuable in the future.

Methods Employed in Making Ore Estimates

Following the decision to set up a project for estimating the ore reserves
of the entire Tri-State district, plans for the work were carefully made.
Consultations with the Zinc Ore Producers Association, company mine managers,
superintendents, and many of the mining engineers of the field were under-
taken, and the discussions covered every phase of the proposed project. The
standard engineering practices of the field were thoroughly analyzed and the
results of estimates by these methods compared with actual operating returns.
From these discussions was developed a manual of methods to be employed by
the Bureau of Mines in making all the estimates in the project and contained
the following instructions:

Upon initiating work upon any given property, the engineer
shall contact the mine manager to secure access to the property.
The collection of all pertinent data shall start with this con-
tact so that the collection of data accumulated from all other
sources about the property may be fully legitimatized. The
engineer shall obtain copies of all working maps, both surface
and underground, showing location of all dril}. holes and shafts,
and all underground working levels. These maps shall be fully
identified as to county, section, township, and range and own-
ership of fee and lessee shown.

2955 -5-


R.I. 4490

The measured ore is 10.60 percent, while zinc concentrates are 12.72
percent and lead concentrates 10.63 percent of the total. The indicated
ore is 50.65 percent, while zine concentrates are 53.76 percent and lead
concentrates 58.01 percent of the total. The inferred ore is 38.75 percent,
while zinc concentrates are 33.52 percent and lead concentrates 31.36 per-
cent of the total. ,

The final estimate of reserves shows approximately 1 million tons more
of measured ore than in the interim Report of Investigations 3922 of 1946.
The indicated ore is approximately 11,000,000 tons greater and the inferred
ore approximately 7,000,000 tons less. These changes are due largely to
the detailed examination of the mines and:to the larger accumlation of de-
tailed evidence procured for the present estimate. The methods used in
present estimates are under control conditions of a single agency also
resulted in ‘better correlation of the estimates by classes.

.. This estimate also shows the relative ore recoveries of the different
States and indicates that Oklahoma leads in all classes. Kansas and Missouri
follow, with smaller recoveries.

“In tonnage of indicated ore, Kansas leads by a wide margin, while in
the measured and inferred classes Missouri takes first rank.

Ordinarily mining operations produce concentrates from the measured
and indicated classes of ore. On this basis, Kansas can ‘supply the largest
amount of concentrates, followed by Oklahoma and Missouri. The measured
and indicated classes of ore in the Tri-State district total 40,484,000
tons of ore, from which » total of 1,597,072 tons of zinc concentrates and
214 »591 tons of lead concentrates may be recovered.’ This represents 61.25
percent of the total reserves, 66.48 percent of the | zinc concentrates, and
66.64 percent of the lead concentrates.

Ore Reserves on a 2-Percent Cut-orr .

In February 1946 it was decided that, in addition to a cut-off of
1 1/2 percent, the engineers should also calculate the reserves on a
a-percent cut-off. From thet date forward all reserves were calculated
on both cut-offs.

Table 3 gives the total of reserves. atl 1/2-percent cut-off for 259
properties ‘upon which the reserves were also’ calculated at the 2-percent
cut-off. These represent 69.87 percent of ‘the total ore tonnage ,- calcu-
lated at-1 “‘L/e-percent cut-off.

Table 4 gives the. totals of reserves oF the same 259 properties at the
2-percent: cut-off.

Comparison’ of these two tables discloses that, on a 2-percent cut-off,
the ore tonnage is only 60.85 percent of that on 2 1 1/2-percent cut-off,
but that the recoverable zine’ concentrates are 74.17 percent and the lead
concentrates 72.91 percent.

2955 -15--


R. I. 4490 JuLy 1949

UNITED STATES Bureau of Mines

DEPARTMENT OF THE INTERIQRIRTVENT OF THE INTERIOR
J. A. Kruc, Secretary Juneau, Alaska
AUG 8 - 1949

BUREAU OF MINES
James Boyp, Director Metal Economics Branch

REPORT OF INVESTIGATIONS

ZINC-LEAD ORE RESERVES OF THE TRI-STATE DISTRICT

MISSOURI-KANSAS-OKLAHOMA

| metadc38515

BY

OTTO RUHL, SIMEON A, ALLEN, AND STEPHEN P. HOLT


R.I. 4490
RELATION OF EXPLORATION TO NEW ORE RESERVES

The question naturally arises whether new exploration will bring out
new reserves with better or equivalent metal content compared with present
kmown reserves. There are wide areas and long distances between the known
producing camps in addition to possible extensions of the outside boundaries
of the field. Some of these areas have been drilled with negative results,
but many thousands of acres of land are as yet untouched by prospecting of
any kind within the perimeter of producing camps. Certainly there are many
areas inside the field that are still virgin and many more that have shown
minor mineralization may yield future reserves if properly tested.

Exploration programs since 1929 have been restricted since. the Picher-
Baxter Springs boom period of 1914 to 1929, At one time during World War I
from 800 to 1,000 drill rigs were prospecting the Picher area, and from such
work the largest and richest ore reserves of the district were developed.
The result of that program provided the zinc and lead supplies that supported
the economic and war needs of the Nation in two World Wars. Since that boom
.period, not over 200 drill rigs have ever operated in any one year. Even
during World War II, only 50 to 100 rigs operated in the field, of which 10
to 25 percent were those working on Bureau of Mines projects. The rigs
working for private companies were employed largely in drilling out possible
small extensions of mining faces jn the working mines and a few rigs only
engaged in new exploratory work. In the spring of 1948, not over 25 drills
were working in the Tri-State area. Since no new or rich camps have been
found since 1929 by the drilling that has been done, many of the larger
mining operators and their technical personnel have developed a pessimistic
attitude. This pessimism hardly seems justified when the history of the
industry is reviewed. Certainly the past 3 decades have provided a vast
accummletion of knowledge about the geology of the field. New methods of
prospecting are now available for use, and their use should develop a new
fund of information and better technique in the future. But those who are
pessimistic about the futu¥e say that when new ore bodies are found they
are too small for present-day consideration.

It should be recalled, however, that the early successes of the district
were based upon many small properties and a very few large ones. Small unit
operations were forced in ‘the early history, too, by the leasing system
which forced the building of concentrating plants on land tracts from 1 acre
to 40 acres. Today's leasing practice, providing for larger acreage and
community milling, makes possible handling many small units as parts of a
larger enterprise. In the development of these small production units, some
of the larger units have always been found, and hence there need not be sole
dependence upon the small units.

Oné program of exploration on a major scale is that of the Anaconda
Copper Co., which will undertake drilling the area in northeastern Cherokee
and southeastern Crawford Counties in Kansas which lies outside the present
known limits of the field. Over 50,000 acres have been selected and leased
for this project on the theory that the geological structure indicates the
possibility of extension of the district. Drilling of the area was begun in

2955 - 32 -


R.I.

2955

4hg0

hole, but upon the relation of the hole to its neighboring
holes or mine faces, upon the type of ore body disclosed,
known geologic structure, and the characteristics of the hole
itself. Under conditions where structure is not plainly
evident, nor the hole itself have definite characteristics
limiting it, 25 feet in all directions may be assumed arbi-
trarily in any type of irregular ore body as a minimum. If.
there is other evidence from actual mining of narrow runs,
there is justification for even further restricting the
minim. ‘

Where a number of holes are involved, the distances be-
tween a good hole and a blank hole may be cut in ‘half as the
limit of the ore unless the holes are spaced over 100 feet
apart. Where good holes and holes showing low mineralization
are adjacent to.each other, judgment enters into ‘the problem
and the ore body limit may reach :closer to the thin hole. If
a drill hole is practically a blank as to ore cantent and yet
reveals the characteristics of a wall hole the limits froma
food hole may extend very close to the wall hole with reason
and justification. Where good holes have a pattern of ex-
tended length, it probably indicates a run-type of ore body
and every care shall be taken to determine the side walls by
considering the holes in cross sections of such an occurrence.
In such cases, structure plays a very important role and shall
be studied carefully, not only for defining this particular
"run" but for indications of intersecting "runs,"or mergers
with larger and more irregular types.

Where ore bodies are definitely "sheet ground" in the
Grand Falls chert, more latitude may be taken, and greater
distances allowed between and beyond holes showing ore.

Where blank holes outline a blank area inside a perimeter
of good ones, such area shall be figured as a blank area. But
"shine-holes", "thin-holes" surrounded by good ones, shall not
eliminate areas but shall be averaged in, as experience indi-
cates the area is often mined as a component part of the ore
body.

With present day practice of mining over uneven floors,
and of mining down inclines, and with upraises, no allowance
need be made for maintaining a floor level or grade, but the
full face of mineralized ground inside the minimum cut-off
shall be estimated for each property. Where drill holes are
ahead of mining faces in a mine, the face estimates of the
mine shall become a part of the average along with the drill
holes. As many points of the face shall be used as will
equal the number of drill holes in nearest cross-section
ahead of the face in the mine. Since few samples are ever
assayed by the operators in their mine faces, the engineer

-8-


R.I. 4490

In cases where ore values are not assayed but are de-
scribed only, the following values shall be used. These
values are those used in general engineering practice of the
field, have been found generally satisfactory.

Zinc terms gS, 6 Lead terms Pos,
Trace Zinc wssereee| 0650 Trace lead ...eseceeeee, 0.02
Thin zinc shines ..| 1.00 ‘Thin lead shines . 0.05
Fair zinc shines ..j 1.50 Fair lead shines . 0.25
Zinc shines ....e+e| 2.00 Lead shines sesseseeses| 0.40
Good zinc shines ..| 2.50 Good lead shines «+..e+| 0.80
Zine «| 3.00 Lead 1.00
Tair «| 4.00 Fair 2.00
Good. «| 5.00 Good 3.00
Rich zinc seseesees| 7250 Rich lead seseceseevees| 5,00

or better or better

Sometimes part of the samples are assayed in any given. hole
and others are not. In such cases it is often possible to test
the driller's judgment and assign values for the terms: he used
in his logs. In drill-hole sections where openings occur in the
ore horizon and the cuttings are lost, the value assigned for
such footage shall be the average of the assay above and the
assay below such opening. Where openings occur inside the ore
section, theyoften indicate a very rich portion of the ore
body although no samples may be obtained. Where the opening
occurs above the ore section it may or may not contain ore.

The cut-off to be used as the minimum assay value in this.
estimate is 1.50 percent metallic for the combined zinc and
lead value over a minimm of 7.1/2-foot face of ore in any
drill hole for a drift face. However, the minimum face may
drop to 6 feet where the face will average 3.00 percent
metallic or better.

After the work was well under way, it was decided that
estimates be made on a 2-percent metallic cut-off as well
as on 1 1/2-percent. This has been done for 259 properties.

Where drill holes show ore in roofs or floors the mini-
mum assay value cut-off -is to be used but the minimum thick-
ness of the ore may drop to any figure that the engineer's
judgment will justify being extracted under the cmditions
prevailing in the individual mine. Height of roof, amount
of ore, assay value, and cost of extraction shall be taken
into consideration.

Methods for Averaging Holes and Areas

The influence of any drill hole over a given area shall
depend not only upon an arbitrary assigned distance from the

2955 -T-


Area analysis sheets

Block 1 - Indicated ore in M ded

AYOR ceciccecccerccecerecececccsvesssesesesesesees
Less 10% for, pillars and mining loss
Net mining area. scccscseceecsevesecees

Average thickness ore body (see drill hole
ANALYSIS )oseacceccceseccreceroccecs

Cubic feet in ore body

Tons of ore @: 1271/2 cu. ft. to tonsscesceeee

Average percent of zinc in ore (see drill hole
ONALYSISccecescccccccsscseececesccscetscesececes

Average percent of lead in ore (see drill hole
analysisSesrecesee

Tons of zine in ore.

Tons of lead in ore...essssvee

ses

Block 2 - Indicated ore in M bed

ALOR ec ccececccererssececerssesoes

Less 10% for pillars etc.
Net mining area....eieeee ee ceeevecnee
Average thickness ore body (see aril hole
ANALYSIS) cereceverereceveccccvacssevevssensecaes
Cubic feet in ore body.. eodeee
Tons of ore @ 12 1/2 cu. Ft. to tonsseeee
Average percent of zinc in ore (see drill hole
ANALYSIS) oseveccrcersecncsccvsceveveserecssovece
Average percent of lead in ore (see drill hole
analysis).secesess
Tons of zinc in ore
Tons of lead in-.ore.

sees

ee ee

Less 10% for pillars’ etc.
Net mining area...
Average thickness ore body (see drill hole
analysis).csssescsecceece
Cubic feet in ore body..
Tons of ore @ 12.1/2 cu. ft, to tonsvssesesevevees
Average percent of zinc in ore (see drill hole
ANALYSIS )osecececceercceuaevseevececeseeeeeenee
Average percent of ead in ore (see drill hole
analysis)....e..s
Tons of zinc in ore..
Tons of lead In OF€.ssssccerccccecccrcscsccvesecee

2955 - 43 -

R.I. 4490

95,400 sq. ft.
9,540 sq. ft.
85,860 sq. ft.

1h ft.
1,202,040 cu. ft.
96,163 tons

3.63% Zn

0.35% Pb
3,491 tons
337 tons.

62,640 sq. ft.
6,264 sq. ft.
56,376 sq. ft.

1} 1/2 ft.
817,452 cu. ft.
65,396 tons

45h 2n

0.26% Pb
2,968 tons
170 tons

80,252 sq. ft.
8,025 sq. ft.
72,227 sq. ft.

15 ft.
1,083,405 cu. ft.
86,672 tons

4.78% Zn
0.53% Pb

4,143 tons
459 tons


RI.

4490

TABLE 9. - Pumping plants in Oklahoma-Kansas section of Tri-State district

Number G.P.M. Inflow | Elevation “Spill-overTM
Pump ' of May | Marth fuc-! Dis- | Eleva-| 7
No. Name of Mine ‘+, pumps! 1947 | 1948 tionjcharge' tion | Location To pump number
1 'MacArthur 2 | 1,000} 1,200 455} 850 L/L.P. No connection.
2 |Ballara | 2 | hoo} "400 | 522; 860 | T/z.P. do.
; English 0 ra. | 100 50 516| 850 | 1/L.P. do.
Beck Smith ; 1 | 50} Down |537| 850 | T/L.P. do.
5 |Beck Swalley i-2 ; 100} Down 223 | 8he | T/L.P. | do.
6 |Bilharz No. il ft 150! Down } 581! 834 | T/L.P.: do.
7 |Weidman (Dines) | 1 |  450/ 450] 546] Sho | 3/u.P.! do.
8 |E. P. Leopard 1 2 + 1,750! 800); 547, 850 )i/L.P.! do.
9 |E. P. Paxon { 1 {| 1,500! Down} 492! 845 | T/L.P. do.
10 |E. P. Stoskopf 1 | hoo} Down |486) 8h | 1/L.P. do.
11 |E. P. Swalley "D", : : H
No.1 » 1 | kool pom} 500! 843 L/L.P. | do.
128) Tulsa-Quapaw , 2 550} 275507! 837 530 [sE1/4 SE1/4 sec. 11, T35S, R23E | No. 45.
132/|Robinson (Mid- i j i
continent) 11 | 150] Down | 507, 835) 530 SE1/4 SE1/4 sec. 11, T35S, R23E/ do.
14 Southern 1 120] Down ; 600| 845 | 605 ;SW1/h SE1/4 sec. 2, T35S, R23E | No. 53.
15 |c. K. & E. Stebbins! 1 75, 250 538; 860; 538 Probably No. 51.
16 |Craig Lease i1 100, 600 | 642i 819; 650 jsE1/4 NW1/4 sec. 33, TOON, RO3E| No. 17.
| i 1 660 en sw sec. 2, TEN, Rese No. 13.
1 Big Jim tL 200 501596} 815) 650 Iswi/h nw1/4 sec. 33, ; Ei No. 16.
13 Skelton ' 4 § 120! Down | 560} 800 | 580 NW1/4 SE1/4 sec. 29, T29N, R23E | No. 19 8
19 ISkelton (Crawfish) 1 {i 120] 400}580; 809 | 580 Probably vor :
20 |Inbeau 1.4 20; Down | 632! 845 | 1/L.P. No connection.
‘1. [Rialto ia hoo, 400 | 585; 62h |}~ 598{wei/ nwi/l sec. 29, T29N, R23E| No. 19,
223), Roya? {2 150! 150! 580! 8ho | 610jSwi/ swi/4 sec. 22, T29N, R23E No- 3.
233/ lLittle Pat 1 100, Down} 610; 8he 610 j No. ee.
2k Bunt 1 | 120} Down |580) 838 | 2/L.P. No connection.
25¢/ Brewster (Huttig) 3 | 450} Dow }605} 835 | Probably No. 43.
262/ prevster 1 | 50! Down |605| 835 | do.
27 Howe 2 | 700; 300 j602} 815 | 612) sui/s NEL/4 sec. 19, T29N, RE3E! No. 48,
28 Walker (Federal) 1 | 325i None 16001 i 610 NWi/4 NW1/4 sec. 27, T29N. R23E: No. 23.
2955 - 28 -





R.I. 4490

May 1948, Extensive geophysical work had already been done by the Kansas
Geological Survey over eastern Cherokee and Crawford Counties. This work
has been interpreted as favorable for the development of structures similar
to those in the known ore~bearing areas of the Tri-State field. A new
outlook and approach to the problems of the field as in 1914 to 1929 might
add a new epoch to the history of the Tri-State field.

FUTURE PROSPECTS:

Readjustment of prices and costs has been in progress since June 30, 19h7,
when the subsidies expired. The price of zinc concentrates first declined
to $64.00, then finally rose to $72.00. Lead concentrates continued at an
average base price of $195.65 up to February 1948, when it rose to $231.65.
This maintenance of a high lead price and the small advance in zinc have
helped materially in keeping the mines in operation, but at a very great
reduction in tonnage mined. On the other hand, production costs have
remained unchanged or gone higher, necessitating mining only the richer ore
and lowering the average mineral content of the remaining reserves.

The mine operators have only two ways of meeting price reductions: (1)
A decrease in the cost of production and (2) more selective mining to increase
the recoverable zinc and lead content of the ore. The first of these may
be achieved through greater mechanization or other techhologic improvements
and greater labor efficiency. The second predicates serious loss of lower-
grade ore reserves to save some of the higher grade.

There is also the possibility of exploration and development of enough
additional high-grade ore reserves to assure an average recovery that will
cover the cost of extraction of the entire tonnage of low-grade reserves.

At best this is only a speculative possibility; it will require additional
capital and considerable time. Land owners could help by lowering royalties,
for they will be heavy losers if the district is permitted to fill with
water.

The remainder of the adjustment becomes one of the country's many con-
servation problems.

APPENDIX
The following pages present an illustration of the engineer's notes,
abstracts of drill holes and calculations on a typical Tri-State mine. Since
all such data gathered are strictly confidential, the example presented is a
purely fictitious and hypothetical property, although the conditions reported
are typical of the district.
Notes on mine examination of XYZ mine, May 1 and 2, 1947

Contacted Superintendent X at office at 8:00 a.m. Checked over mine
maps before going underground.

2955 - 33 -


Costs of concentrates, including 10% royalty and profit of $0.50 per ton of ore.

Example: Exploitation
of 4% recoverable ZnS
180 with mining and milling
costs of $2.75 per ton
requires payment of
170 $90 per ton of
/ concentrate.
S LA
160 y
5 /
de
150 ~
Y /
140 / i
130
us / |
110 [Z awe
EK
YA A >
100 X ce
90) > 4,08
we
i oF
80 8 —
a
70 ry &
60 —-
Wa oe
50 &
40
R - Percentage | recovery of 60%
zinc concentratts per ton of
30 crude ore
20)

2

3 4

Mining and milling costs per ton of crude ore, dollars

Figure 5. - Zinc concentrate price requirements in relation to mining and
milling costs and unit recoveries of concentrates.


R.I.

490

Abstracts of drill logs of XYZ mine (Cont'd)

; Collar} Grand Ore horizons An2lysis
Hole| eleva-| Total] Depth] "M"| Falls Thick- ;
No. Remarks tion | depth] shele| bed| chert | "i" bed | From To ness Zine Lead
10 |Silicification 180-242 874 ah7 60 | 172 1220-232 180 190 10 Zinc None
Shines
220 225 5 2.98 | 1.00
225 227 1/2} 21/2| 3.10 .80
227 1/2] 230 21/2} '3.00 55
230 232 2 2.95 15
232 234 1/2} 21/2] 1.10 | Trace
ll |Silicification 180-248 873 | 250 | 70 |176|221-233 221 221 5 3.10 60
Short Creek oolite at 168. 226 228 1/2} 21/2! 3.40 +22
| 228 1/2] 230 1/2] 2 3.00 | Trace
230 1/2] 233 21/2; 2.41 | Trace
12 |Silicification 190-247 871 | 248 | 75 {180 221-232 (| 222 226 5 3-40 +10
(| 226 228 1/2e| 21/2] 3.12 Oh
(| 228 1/2] 232 21/2! .3.08 01
231 233 2 1.28 Trace
13 |Silicification 183-250 87h 255 91 | 180 221-232 (| 185 190 5 4.80 1.23
Ore horizon very open. ({190 1g2 1/2! 21/2] &.70 82
Black Jasperoid lower "wi bed (1192 1/2] 195 21/2) Openink-Lost
Section "M" bed and sheet ( cuttings
ground. Dolomite and cal- (|195 197 1/2 | 21/2] 6.10 ~70
cite associated with ore. (|197 1/2 | 200 21/2 | 3.10 +25
( je21 223 1/2} 21/2] 3.15 ho
Sheet (223 1/2 | 226 21/2} 2.85 +30
Ground ( |226 228 1/2 | 21/2] 3.00 20
{ 228 1/2 | 232 } 2 ve 2.91 10
232 233 1/2 | 21/2) 1.15 +0
2955 - 50 - 7


R.I. 4490

December 31, 1947, when a total of 38,900. aeres had been. investigated in three
States. There are still old areas that have shown production: in the past but
upon which the Bureau has been unable to find any evidence now existent in the
way of drill logs, and the. underground is now under water, precluding any ex-
amination at this time. These areas-are largely in old abandoned camps of
Missouri, such as Aurora, Sarcoxie, Carthage, Alba, Neck City, Spring City,
Spurgeon, Belleville, and Joplin, and around Badger, Kans. A very consider-
able area around the old Quapaw, Lincolnville, and Peoria camps in Oklahoma
has likewise been abandoned, and records of the development work have been
lost. Some of this old evidence can and doubtless will be recovered by pain-
staking and long searching and mst be left for future work by the Bureau of
Mines engineers and other interested agencies.

Changing economic conditions have prevailed during the preparation of
this report. The change-over from wartime conditions to peace has introduced
the problems of price and cost adjustments. The excessive drain upon the ore
reserves of the Tri-State during the two world wars has created conditions that
enter into the field's future development and will influence its methods of
work and its place in the production statistics of the United States from a
field of low cost and high recoveries that has drifted into the higher-cost
bracket. Its recoveries have dropped until its mjor resources in ore reserves
are now close to or are in what may be called marginal ores. During the
last months of 1947 inadequate adjustment of zinc prices to the cost of pro-
duction began to force operators to select their higher grades of ore to
remain in the productive class, thus reducing the grade of their remaining
reserves to submarginal levels, This discouraged production and development,
and in early 1948 only about 25 drill rigs were at work in the area. This
contrasted with the record of 500 to 800 drills working in the early develop-
ment of the Picher camps, which resulted in the reserves that provided the
lead and zine resources for two world wars and the industrial period between
them. .These problems were accentuated by the closing of many mines and mills.

ACKNOWLEDGMENTS

The work of estimating the ore reserves of the Tri-State district as
shown in this.report was under the general supervision of C. H. Johnson, chief
of the Rolla Branch, Mining Division, of the Bureau of Mines from October 1945
to, September 1947 and continued under his successor, Leon W. Dupuy, until its
completion.

The generous help and cooperation of the mining companies in the district
ave gratefully acknowledged. The companies and individual operators have
cooperated in this.project by supplying mine mops, drill logs, assay. sheets, :
cost. reports and mill recoveries: by giving the assistance of their engineers,-
ground superintendents and office personnel; and by providing access to their
mines. Among the larger companies have been the Eagle-Picher Mining & Smelting
Co., the Federal Mining & Smelting Co., the St. Louis Smelting & Refining Co.,
the Royal Mining Co., the Melrose Mining Co., Grace Jarrett Mining Co., Scott
Mining Co., Rialto Mining Corp., Evans-Wallower Zinc Co., Harris Mining Co., +
Cameron & Henderson, W. T, Landrum, Playter Mining Co., Dinés Mining Co.,
American Zinc, Lead & Smelting Co., C. K. & E, Mining Co., C. & M, Mining Co.,
M, & W, Mining Co., F, W. Evans, Brown & Root, Fred Childress, George Pearson,
Ress Blake and many others.

2955 -4e


R.I. 4490

fracture zones and solution chamels. Figure 4 is a map showing the princi-
pal geologic features of the Tri-State district compiled from the authorities
cited above.

CLASSIFICATION OF ORE RESERVES

Ore Reserves on 1 1/2-Percent Metal Cut-Off

A summary of all classes of ore reserves for each state is shown in
table 1. The metallic content is shown in terms of 60-percent zinc con-
centrates and 80-percent lead concentrates, which are the commercial units
used in the statistics of the field.

TABLE 1. - Estimates of ore reserves, grades, and concentrates
of zinc and lead, by States - December 31, 1947

i Recoverable concentrates
All classes | 60-percent zinc _60-percent lead
State ore, tons | Percent | fons | Percent, Tons
Kansas... | 25,006,000 | 3-52 868,255 0.00 151,939
Oklahoma 13,718,000] 4.46 611,884 | 0.70 | 96,554
Missouri | 27,156,000 | 3.32 902,294; 0.24 | 64,156
[66,100,000 | 3.63 12,402,833 | O47 | 312,049

Table 2 segregates the ore into measured ore, indicated ore and inferred
ore for each state.

TABLE 2. - Ore reserves, by States, segregated into classes,
showing grades and concentrates of zinc and lead,

December 31, 1947

Estimated on a 1 1/2-percent metal cut-off
Recoverable concentrates

i
| 60-percent zinc. _80-percent lead
State | Tons_ore | Percent ! Tons i Percent | Tons
| Measured ore

Kansas .......... 959,000 5.52 | 52,905 | OT 7,051
Oklehom..... ; 1,724,000 5.67 97 Blk. 0.58 10,068
Missouri 4 32h 000 3.58 154,845 | 0.37 16,096
|_7,007, 000 436 305,654 | O47 | 33,215

i Indicated ore
Kansas ...+.+s.- 16,546,000 3.51 | 581,351 | 0.55 | 90,621
Oklahoma ... 8,963 ,000 A kD 395,575 | 0.79 | 71,178
Missouri....... 7,968 , 000 3.95 | 314,492 | 0.25 =| 19,577
33,477,000 3.86 1,291,418 7 0.54 | 181,376

Inferred ore
Kansas ...... 7,721,000 3.29 | 253,939 | 0.70 5h 267
Oklahoma... 3,031,000 3.91 ! . 118,465 : 0.50 15,308
Missouri.... j_ 14,864,000 2.91 432,957 | 0.19 28 483
{25,616,000_. 3.14 805,361 0.38 98,058
Grand _total....../ 66,100,000 3.63 2,402 433 O47; 312,649

2955 - 14 -


R.I. 4h90

Block 6.- Indicated ore in 0, P, @ beds or "sheet ground" (Cont'd)

12 ft. average mine face

he

| Zine assay,! Lead assay,

Depth Face. | Zinc assay | Lead assay | feet feet

D.H. 15 - Elevation 875
655 650 5 3.40 0.25 | 17.20 1.25
650 o7 1fe | 21/2 2.87 18 7.18 AS
647 1/2] 645 21/2 3.00 Trace 7.50 20
645, 642 1/2 12 1/2 2.50 20 6.25, 0
ife 3-05. elt 36.13 1.70

D.H. 16 - Elevation 875
656 651 5 3.22 * 0.60 16.10. 3.00
651 6h8 ife |e 1/2 2.90 ho 7.25 1.00
648 1/2} 646 21/2 2.10 Oh 5.25 .10
646 6431/2 [2 1/2 1.90 Trace 4,75 20.
fe 1/2 2.67 33 33-35 I %.10

D.H. 17 - Elevation 876
656 651 5 2.96 0.36 14.80 1.80
651 648 1/2 | 21/2 3.00 +10 750 +25
648 1/2} She 21/2 2.66 05 6.65 +13
646 Oby 2. 1.92 +03 3.84 206
fre 2.73 _ 19) 32.79 2.on

D.H. 44 - Elevation 876
656 651 5 1.93 0.72 9.65 3.60
651 648 1/2 | 21/2 2.71 20 6.78 +50
~ 648 1/2) O45 12 2.50 204 8.75, 1h
AL 2.29 39 25.18 yok

Estimates of mine headings from mine examinations:
Heading at B- 121/2 ft. - 3.00 0.25 37.50 3.13
Heading at F - 13 ft. - 2.90 225 37-70 3.25
Heading at G + 13 ft. - 3.00 225 39.00 3.25
Heading at H- 12 1/2 ft. - 3.00 425 37.50 3.13
Heading at I-12 1/2 ft. - 3.00 225 37.50 3613
Heading at J - 13 ft. - 3.20 +20 41.60 2.60
Heading at K - 12 ft. - 2.50 35 30.00 4,20
Heading at L - 12 1/2 ft. - 2.90 220 36.25 2.50
Heading at M - 12 1/2 ft. - 2.75 +30 34.38 3.75
M3 fe ft. - 2.92 226, 331.43 28.98

Average 6 drill holes and 9 mine headings in examinations:

184 ft. 2.88 | Oak | 529.42 |  4b.96


R.I. 4490

Abstracts of drill logs of XYZ mine (Cont'd)

i Collar; Grand | Ore horizons Analysis
Hole| eleva-| Total|Depth|"M"| Fells t : { Thick-
No. Remarks ij tion | depth! shale!bea| chert | "J" bea | From | To ' ness Zine Lead
i T
H i (| 248 251 1/2! 3 .1/2| 1.37 01
3 |Silicification 190-250 875 | 255 | 90 185) 220-236] (j192 1/2! 197 1/2] 5 1.43 615
Reeds Spring Blank | ' (197 1/2| 200 21/2) 4.48 +28
i | "M" bed (| 200 202 1/2} 21/2; 3.80 +10
i | : (| 202 1/2] 205 21/2| 1.50 05
| | (j 205 210 5 1.30 201
| ({ 210 | 220 10 Trace | Trace
i i (j220 | 205 5 2.91 | 0.30
! (1 225 2eT 1/2| 21/2) 2.85 28
| Sheet (| 227 1/2! 230 i 21/2{ ho 10
fo4 Ground (| 230 232 1/2; 21/2; 1.48 08
\ (| 232 1/2] 235 21/21 1.30 205
| (|235 | 2ho 5 1.08 02
4 |Silicification 200-230 877 | 250; 61 175} 220-230 200 220 20 Thin | Trace
! i Shines |
\ { i
| | Sheet (|220 225 5 4.03 | 12
: Ground (}225 227 1/2| 21/2] 3.00 | «10
| (1227 1/2] 230 ,2 1/2} 2.10 | 08
5 Isilicification 210-230 877 | 238 | 60 {175 220-230 220 | 230 110 Thin | Thin
- a | { Shines [Shines
6 |Silicification 180-245 871 ekg 85 175 j220-230 1185 200 15 Fair None
oe i ! | | Shi:
4 H 1 if | nes
2955 - 46 -


R.I. 4490

TABLE 7. - Tonnage capacity, location,

and status of Bills in the

Tri-State area (Cont'd)

T | Tons/hr. | Operates | |
No. | Name i__capacity on | Location : Status
| i Missouri
1 | Playter’ (Waco) - 20 Crude Ore] SwW1/4 NW1/4 sec. 14, TOON, R34W Runs intermittently.
2 i Kansas X (Snapp) ho do. SE1/4 SE1/4 sec. 23, T29N, R33W Continuous operation.
3 | ‘St. Louis Mining &
| Milling 20 do. | SW1/4 SW1/4 sec. 16, TO8N, R33W Runs intermittently.
4 | North Side ~~ 20 dos. | SE1/4 Nw1/4 sec. 32, Te8N, R33W Down since July 1, 1947.
5 | South ‘Side’. 25 -do. | NW1/4 ww1/4 sec. 5, TATN; 33M | Down. since. November 1947.
6 | Kansas X (Jasper) AS do. NW1/4 SE1/4 sec. 6, T29N, “R33W- Down. since July.1, 1947. |
7 Amarican-Orgnogo oe | a
t  (EeRe). . 30 do. | Nwi/4 SW1/4.sec. 31, T29N, R33W | Shut down November 196.
8 | Fenix .(Qronogo)_ -20 do. | Swi/h swi/l sec. 31, T29N, R33W | Down since August 1947.
-9 | Magagupe. 25 do. ‘| Nwi/4 .NW1/4 sec. 20, TO8N, R32W Down since December 1947.
10 | Sucker Flat, | €0 ' Strip Pit! swi/h NE1/+.sec. 19, T28N, R32W do.
11. | Duenweg..... 70 | Crude Ore} S1/2- SW1/4.sec. 3, T27N, R3QW Down since July 1947.
12 | Spurgeon __. ‘12 do. | SE1/4 wri/4.sec. 31, T26N, R32W Runs intermittently.
13..|. Granby. American 70 do. | SE1/4 SE1/4. sec. 12, T25N, F31W | ° Reopened March 1948.
14 | Dale Mining Co. 30 _ do. | NWi/h SW1/%. sec. 23, TE5N, R30W Continuous operation.
15 ||-Navy.Bean... i. 30 do. | Nwi/l NWI/i’sec. 8, TEEN, ROW |... Custom Dirt.
16 -| Wentworth... |. 20 ! do. | NE1/¥:Sw1/4 sec. 12, T26N, R29W-; Down since July 1947.
- 25 -

2955




R.I. 4490

TABLE 8. - Tonnage capacity of mill groups es related to ore reserves’

i
| |
|

icapae ity,| i
tons in: Reserves,

i At present !

No. of |

capacity Estimated yearly production zinc.

d lead ore’ .

in thousends of tons~

Mill group _StateiMills, € hours _ tons Shifts |Years | LB 1shg | 1950f 1951! 1952} 1953 | 195% 1959
Pichersee+eseeeees! Okla.’ If 1” 9,760 113,718,000; = = TS =p
{Kans ! 8: 225d 22, "106, 000; - -|-j - |

Picher Field Total, 35 _, 12,30 136,124,000 2,930) 5 Bi Ks 75) 6,152 Te uy aS, y BOG, 33 705 i: op 3,200.
Crestline ..esseoee: -_! - A000; - it - | - jij - = | __1k0! 160: un
Lawton 2 260 "2,376,000; = = ~ T a t
Waco 1_| 160 | 740,000; - | s- | -i - i - ~ fp - ft -i -
Lawton-Waco Total.! 3! Aho + 35116,000; 7,082, i. IA P 220 | 220) 220, 220: 517 G20! 620) 545
Neck City-Alba. > =; 1,278,000' = T = 1 , 1261 4Oor hoo; 352
Oronogoe+eree i oh | 880 | 3, °467,000 | 3,940, 7. “88 hyo | inho! kho Aho Who} bho: Who 387
Webb Cit hoe | 680 16 1506, 000 [2h ,273 48. 551 340} 657/2,138'2, 740 2, 740 12, 740 12, 740 2,412
Duenweg. / 1 | 560 | 2,206,000 ' 3,940, 7.88|° 280! 280; 280! "280, 280 | 280. 280; 2h6
Toplin...+. i 301 720 $1,523,000; 2,115) 4. 23 360 j 360) 360} 360 8] - i - -
Winchester. poe - » 220,000} - j§ - F = Fe foe - ij 69) 80 71
Spurgeon2/. i; 2 | - | Poe gos eee ttn ee _ -

i 2 | 800 | 483, 000; 604! 1.21, 400, 63; - | foe | - i -

i2 ! 4oo | _733,000} 1,833! 3. 60' 200} 200! 2001 “6r) “6: - | -
Subtotal3/--- 15 | %,0h0 26,816,000; 6,539 13.08 2,020 2,02013 41873, B87 |3,735 392913, wos, TET

Total... WHS 116, 70h 66,100,000! 3,939 7.05 8,392 030818, 3928 AER 392 18,392 |8,39217,356
da;

i/ 2 shifts a day, 250
Waco. field.

ys a year.

2/ Milling crude ore on which no estimate was made.

3/ Missouri, except

Additional added capacity required to mill 66,100,000 tons of reserves by December 1, 1955.

2955

i9hg
1950
1952 -
1952 -
1953 -
1953 -

- 100 tons per hour - Webb City
- 500 tons per hour. - Webb City
100 tons per hour - Lawton-Waco
100 tons per -hour - Neck City-Alba
20 tons per-hour - Winchester-Spring City
40 tons per hour - Crestline
- 26 -


R.I. 4490

Block 2 - Indicated ore in M bed

Zinc assay, | Lead assay,
Depth Face -| Zinc:assay | Lead assay feet feet
D.z. 25_- Elevation 876
687 682 5 | 8.00 0.32 -j 40.00 . 1.60
682 679 1/2| 21/2 6.02 20 15.05 +50
679 1/2 | 677 21/2 3.26 .08 8.15 +20
677 674 1/2| 21/2| : 4.00 02 10.00 05
674 1/2 | 672 21/2 2.72 AC) 6.80 20
15 5-33 0.16 80.00 2.35
D.H. 26 - Elevation 877
692 : 687 5 6.82 0.32 34.10 1.60
687 | 6841/2 | 21/2 4.20 +20 - 10.50 50°
684 1/2 |. 682. 21/2 2.81 17 7.03 43
682 679 1/2 | 21/2] 3.00 . «10 . 7650 225
679 1/2 | 677 21/2 2.65 - 03 6.63 +75.
| 15 438 Ay 65-76 3.53

Estimates of mine headings from mine examinations:

Heading at Q - 14 ft. - M675 0.85 66.50 3.50
Heading at R - 15 ft. - 3.85 15 57.15 2.25
Heading at S -.15. ft. - 4.00 15 60.00 2.25
Heading at.T - 14 ft. - 5.00 “ho 70.00 5.60
Heading at U -_l4 ft. - 4.50: | 50 63.00 7.00

72 ft. Ua 229 317.25 20.60

Average 2 drill holes and 5 mine headings in examinations:
102 ft. Kesh | 0626 | 63.02 | 26.48

1s 1/2 ft. average mine face

Block 3 - Indicated ore_in M béd

Hf i Zine assay Tread assay,
Depth iL Face |zine assay | Lead assay | feet feet
D.H. 30 - Elevation 871

686 681 | 5 482 OW. 24.10 2.10
681 1678 1/2 21/2 3.20 +10 8.00 : 225
678 1/2 676 21/2 2.88 t 02 7.20 +05
676 673 1/2 21/2 2.90 02 7625 05
673 1/2 671 21/2 2.80 0 7.00 0
15 357 wo 53 55 2.05

2955 - 37 -


R.I. 4490

under water represents 39.88 percent of the total estimate and contains
34.98 percent of the zinc concentrates and 21.36 percent of the lead
concentrates.

TABLE 5. - Ore reserves now under water and unavailable until drained

; All i Recoverable concentrates
i classes | 60-percent zine tT 80-percent lead
State | _ore tons Percent | Tons Percent | Tons
Kansas | 2,670,800 3.87 | 103,315 [opens ; dl 7882
Missouri | 23,688,900 3.11 | 737,110 0.23 | 54,902
otal | 26 359, 700 3.19 | 8ho,kes | 0.25 | 66,734

Preparations were begun in March 1948 to reoven the old Crestline camp
in Kanses. Pumping capacity to the extent of 6,000 gallons per minute was
installed and progress made in lowering the water. When this is accomplished,
approximately one-half million tons of reserves will become available for
mining.

Plans are also under way to dewater a section of the old Chitwood camp
northwest of Joplin, which, if carried out, will recover over 1 million tons
of ore reserves.

The largest single block of ore reserves under water is in Missouri
and reaches from Oronogo on the north to Duenweg on the south, an area 7
miles long and 11/2 to 2 miles wide. This is the original "sheet-ground"
mining district of the Tri-State erea and at one time the greatest single
producing area of zinc and leed concentrates. In this area are 20,647,800
tons of ore resorves containing 606,440 tons of zinc concentrates and
46,970 tons of lead concentrates. This ore contains 1.76 percent recover-
able zine and 0.18 percent recoverable lead.

To recover this ore, a coordinated pumping program involving several
pumping stations distributed over the area from Oronogo to Duenweg will be
required. Previous experience in dewatering the area, using pumps with a
capacity of 25,000 gallons per minute, shows that the pumps can be installed
and the work accomplished in 6. months. This estimate is based on the
assumption that the surface drainage system is fully repaired and no water
is permitted to return underground either from rains or present drainage
streams. The cost was estimated by Brown & Root engineers in 1943 at
$155,000,

To handle these ores, a central milling plant within the area will be
required, with a minimum capacity of 10,000 tons per 24 hours. Such a
plant would treat the reserve in approximately 6 years. The cost of such a
plant was estimated at $941,467 by Brown & Root engineers in 1943.
Reequipment of shafts and surface improvements and underground equipment for
mechanized operations to supply 10,000 tons per day was estimated at that
time at $991,486. With today's cost of equipment, supplies, and labor the
cost would probably be approximately 50 percent greater. In addition,
$300,000 wes set up as working capital. At present costs of mining

2955 - 18 -


R.I. 4490

Block 5 - Indicated ore in 0, P, @ beds or "sheet ground" (Cont'd)

| | Zine assay, | Lead assay,
Depth | Face | Zinc assay | Lead assay feet feet
D.H. 52_- Elevation 874
653 | 6h8 5 2.87 0.28 14.35 1.40
64B ' 65 1/2} 21/2 3.00 +12 7.50 230
645 1/2 | 643, 21/2 2.25 Oh 5.63 +10
643, oho 1 1.82 02 1.82 02
| il 2.66 316 29.30 1.62
D.E. - Elevation 873

652 647 | 5 1.92 0.20 9.60 1.00
647 644 1/2 21/2 3.10 12 7.75 330
64h 1/2 | 6he 21/2 2.20 202 5.50 05
che 640 2 1.80 - 3.60 20
12 2.20 wl 26.45 1.35

Estimates of mine headings from mine examinations: ;
Heading at A - 12 ft. - 3.00 0.60 36.00 7.20
Heading at B.- 12 ft. - 2.80 | +20 33.60 2.40
Heading at C - 13 ft. - 2.80 +20 36.40 2.60
Heading at D - 12 ft. - 3.00 +90 36.00! 10.80
Ug ft. 2.90 AT 142.00 | 23.00

Average 8 drill holes and 4 mine headings in examinations:
143 1/2 ft. 2.87 | 0.39 | 421% | 55.38
12 ft. average face ore

Block 6 - Indicated ore in 0, P, Q beds or "sheet ground"

T- T | Zinc assay, { Lead assay,

Depth _. Face | Zinc assay| Lead assay | feet i feet

DH. 3 - Elevation 875
655 i 650 15 2.91 0.30 14.55 1.50
650 | 647 1/2 21/2 2.85 228 7.13 +70
647 1/2 | 6h5 21/2 4,10 10 10.25 225
645 | 642 1/2 21/2 1.48 08 3.70 220
12 1/2 2.05 wel 35.63, 2.65

DH. 4 - Elevation 877
657 | 652 15 4.03 | 0.12 20.15 0.60
652 | 649 1/2 | 21/2 3.00 +10 7.50 +25
649 1/2 | 647 21/2 2.10 208 5.25 220
{ 10 329 ell I 32.90 1.05

2955 - ho


R.I. 4h90

Abstracts of drill logs of XYZ mine (Cont'd

{ Coller Grand | . Ore horizons Analysis
Hold eleva-|Total]Depth|"M" Falls “ Thick-
No, Remarks tion_|depth| shale|bed chert | "J" bed_1 From To ness Zinc Lead
Sheet (| 220 225 5 3.21 +05
Ground ( 225 2e7 1/2! 21/2! 3.15 -8
227 1/2| 230 /2| 2.98 02
; 230 2h9 19 ' Thin | Trace
i Shines
7 |Silicification 200-241 872 2hs5 7O 1173 221-232) 221 226 5 4.02 -09
"N" bed shows little 226 228 1/2; 21/2] 3.42 +08
solution action. 228 1/2| 231 21/2] 2.97 Oh
231 232 1 53 03
232 237 5 Thin | Thin
Shines | Shines
8 |Silicification 222-245 874 255 64 1172 219-233 219 222 3 Opening -No
3-foot opening on top of cuttings
#0", "P", and "Q" beds. 222 2eh 1/2 | 21/2) 3.85 .
‘20h 1/2| 227 21/2} 3.70 “72
| 227 2291/2 | 21/2} 3.00 AL
229 1/2| 232 21/2! 2.37 222
232 234 1/2 | 21/2| Thin | Thin
Shines |Shines
9 |Silicification 212-243 87h 253 55 |172 219-235} 130 219 222 3 2.86 1.02
Short Creek oolite at 165 222 224 1/2 | 21/2; 2.10 65
"M" bed very tight. 22h 1/2 | 227 21/2! 2.15 55
| | 227 229 1/2 | 21/2 | 1.98 ho
H : | 229 1/2} 232 21/2 | 1.52 221
i i 232 234 1/2 | 21/21 1.08 | .05

2955 hg -


R.I. 4490
TABLES

. Fage
1. “Estimate of ‘ore reserves of all classes, by States, on 1 1/2-per-

Cont CUE-OFE ceccereccceccsececerecassscesseceeecessceseseseves Uh
2. Estimates of ore reserves, by States, segregated into classes on

L 1/2-percent Cut-Off csescccccecceccencccccreererecseevesevoes Lh
3. Estimates of ore reserves, by States, at 1 1/2-percent metallic

cut-off for those properties upon which calculations were

also made on & 2-percent cut-off ceccecerergeevccvcesereseseses 16
4, Estimate of ore reserves, by States, segregated into classes on

259 properties at 2-percent metal cut-off ....6.
5. Ore reserves now under water and unavailable until drained ...... 18
6. Mine’ production’ of -erude-ore,: zinc. and. lead recoveries,. values,

> and costs‘ of mining: and: milling, 1935-W7. ....c.ses0

7. Tonhage capacity, location, and status.of mills. in Tri-

AVOCA’ ceceercccecnceeccereen reese eseeecese cei eresseeseeesseseess 23
&. Tonnage’ capacity of mill grovps as related to ore reserves ws... 26
9. Pumping plants: in Oklahoma-Kansas section of Tri-State district,. 28

SUMMARY

The zinc-lead ore reserves of the Tri-State district of Kansas, Missouri,
and Oklahoma, as of December 31, 1947, are estimated at a total of 66,100,000
tons ‘of crude ore ‘containing 2.18 percent metallic zinc and 0.38 percent
metallic lead. - The Bureau -of Mines began estimating the reserves in October
1945 and completed ‘the work December 31, 1947. A total of 38,900 acres of
land ‘representing ‘approximately 5 percent of the area of the district is
covered ‘in this report: -Phe work-was confined for the most .part to properties
developed or partly developed by drilling and underground workings, and to
acreage sufficiently drilled-out to indicate ore of enough tonnage to make a
commercial undertaking. The acreage in which ore reserves exist is widely
distributed in all three States. A map of the Tri-State area is shown in
figure 1. The remaining 95 percent of the area is nct necessarily non-
productive but represents possibilities for future exploration and develop-
ment of additional mineral resources when and if economic conditions or
national necessity encourage such work.

Of the total reserves, 41 percent are in Missouri, 38 percent in Kansas,
and 21 percent in Oklahoma.

Out of the total estimate, 26,359,700 tons of ore containing 840,425
tons of 60+-percent’ zine concentrates and 66,784 tons of. 80-percent lead
contentrates are now under weter in Kansas and Missouri. In. completing its
estimates of ore reserves for the district, the Bureau of Mines examined,
studied, and correlated 68,598 drill logs, prepared many maps of the existing
mine workings, and compiled a reservoir of information that will prove valuable
in the future study and development of the field. In preparing the estimates,
geological features were studied, geological records were consulted, and every
phase of the geological situation was weighed.

2955 -2-


R.I. 4490

Another large area, which has laid idle for years, largely because of
previous trouble with excessive water, is the Crestline district, 10 miles
north of Baxter Springs in Cherokee County, Kans. F. W. Evans started to
dewater the field in March 1948, using eight deep-well turbine pumps set in
the Ellis & Crutchfield shafts and in a large drill hole near the Ellis
shaft. Total capacity of these eight pumps was 6,000 gallons of water a
minute. The water level was being lowered at such a rate that it was ex-
pected that it would be possible to enter the mines for clean-up, repairs,
and preparation for mining within 90 days after pumping was begun.

The largest and most important section of the Tri-State district now
idle and filled with water is the Oronogo-Webb City-Duenweg area, where an
area of 14 square miles is estimated to contain 20,647,800 rock tons of ore
from which, with modern mills, 1.76 percent of metallic zinc and 0.18 percent
of metallic lead in zinc and lead concentrates may be recovered.

A detailed study of the Oronogo-Webb City-Duenweg drainage problem, made
by Wm. M. Stewart, engineer for Brown & Root, in collaboration with the Bureau
of Mines engineers » for the use of the War Production Board in 1943, indicated
that to drain the area 17 9-inch deep-well turbine pumps, with a total pumping
capacity of 26,000 gallons a minute, would be required. The cost of the
drainage job, including the cost of pumps, installation, power lines, and
labor and power costs of operation, would be $155,000, and the time necessary
to dewater would be 6 months, to the point where clean-up and preparatory
operations for mining could begin.

From the above-cited cases, it can readily be understood that the pumping
and control of. water are among the major problems of mining in the Tri-State
field. The volume of water to be pumped is large, the cost is high, and the
added expense for again draining a field where the pumps have been removed and
the water level allowed to rise may becomo prohibitive, The figures for the
Oronogo-Webb City-Duenweg field illustrates these points. + Because of the
enormously large areas open underground and the miles of interconnected
workings, the cost of draining the Oklahoma-Kansas section of the field, if
pumps were shut down and the mines allowed to fill with water, would be so
great that it probably could not be done, and the remaining reserves of
lower-grade and marginal ores would be lost forever.

Another phase of the problem, serious in any part of the field but
particularly so where the ore carries greater than average percentages of the
iron sulfide minerals, pyrite and marcasite, is the acidity of the’ water that
has passed over those sulfides. When a mine is first opened, the water is
generally neutral, or only slightly acid. But if that mine later is ‘flooded
after sulfides on the walls have been partly oxidized by exposure to damp
air, then again pumped out, the water is often highly acid and destructive to
pumps and pump-colum pipes, as well as to any mining equipment exposed to
it. Such acidity of mine water has been a source of added trouble and expense
in reopening many mines in the Tri-State district. Serious consideration of
this problem will be necessary when the Webb City-Oronogo-Duenweg area is
drained, and the same problem will arise if the Oklahoma-Kansas area is ever
filled with water and drainage is again attempted.

2955 -31-


R.I.

4hgo

TABLE 9. - Pumping plants in Oklahoma-Kansas section of Tri-State district (Cont'd)

Number |G.P.M. Inflow| Elevation 5 "Spill-overTM
Pump! of May March!Suc-{ Dis- |Eleva-

No. Name of Mine pumps} 1947 | 1948 !tion |charge| tion Location To pump number
294/TRomo 3 300 200] 700 | 850 No connection.
30 |Scott (Jane E) 2 195 60| 560} 841 !1/L.P. do.

31 Farmington 1 120] Down} 625| 850 |T/L.P. do.
32 |Mary Ann 1 40] Down] G40| 828 670] Swi/ NE1/4 sec. 15, T29N, R23E |No. 25..-
33. |Wesa 1 30 30) 556| 820 583
3h |Good Eagle No. 1 2 230 100|' 543} -836 ja/L .P. No connection.
35_ |Good Eagle No.3 | 2, 100{ 100] 550) 835 \DL.P. do.
362/|South Side 2 -950| 600] 495] 828 505] NEL/4 NW1/4 sec. 31, T29N, R23E |No. 37.
37 3 Blue Goose No. 2} 2 50! 50} 500) 831 505| NE1/4 NW1/4 sec. 31, T29N, R23E |No. 36.
396/|West Side No. 1
(Barr) 1 60} 250] 520] 864 525/SE1/4 Sw1/4 sec. 7, T35S, RKE |No. 40.
406/|West Side No. 2 1 2B 50] 510} 880 525|SE1/4 swi/4 sec. 7, T35S, ROE |No. 39.
41” [Inspiration .
(Webber ) 1 150] Down] 524| 850 |1/L.P. / No .connection.
42 |New York 1 hoo] 150} 530] 820 572|SE1/4 NE1/4 sec. 20, TOON, R23E {No. 43.
43 |White Bird: 2. 700|.. 500}.525]. 825 570|SE1/4 NE1/s sec. 12, T35N,Ro3Bor No. 39. ,
. 576|SE1/4 NE1/4 sec. 20, T29N, R23E jNo. 42
4h |B. P. MuskogeeT/ | 3 3,460} 1,400} - | 830 | ._|No connection
45 JE. P. Wilbur LZ 220; 220] 510} 825 530|SE1/4 SE1/4 sec. 11, T35N,R23E‘ajNos. 13-12-53.
: . SWi/s SW1/4 sec. 12, T35N, R23E |No. 49.
46 |ohimo, E. P. 335| Down| 516! 838 558] NE1/4 NEL/h sec. 13, T35N, R23E do.
47 |g. P. Jarrett 1 130| Down| 508} 852 |1/L.P. No connection.
48 |E. P. Crystal _
(Central) 300] 180; 466] 830 528) 1wi/s NEL/4 sec. 30, T29N, R23E |No. 55.
4g JE. P. Cherokee 1 250] Down} 515{ 840 550/SwW1/4 SW1/4 sec..12, T35N,RE3B aiNo. 45.
. NE1/4 NE1/4 sec, 13, T35N, R23E |No. 48.
50 |E. P. Bird Dog 1 55 551.560} 838 566|SE1/4 NEL/Y sec. 13, T29N, R22E |No. 54
51 |E. P. Lucky Jew 2 320] 2501 500] 850 | . . . Probably No. 52.
52 JE. P. Big John 2 500].. 250] 495 |. 850.| .. 560/SE1/4 SW1/4 sec. 2, T35N, R23E |To 53, 12, or 13.
53¢/lE. P. Black Eagle| 1 75 |. Down| 507] 835 530|SE1/4 SEL/4 sec. 11, T35N, R23E jNo. 45.
54” |Federal Jarrett 1 2251 Down! 525] 840 580|SE1/4 nwi/h sec, 14, T35N, R238 at do.
d. 560|SE1/4 NE1/4 sec. 13, T29N, R22E |No. 50.
55 !Iucky Bill 3 475; 200}; 508 | 820 520|Nw1/4 NE1/4 sec. 30, T29N, R23E jNo. 48.
2955 - 29 -


R.I. 4490

Abstracts of drill logs of XYZ mine (Cont'd)

i Collar] { i Grand Ore_horizons H Analysis
Hole| eleva-!Total| Depth "M"| Falls 1 Thick-
No. Remarks tion |depthj shalei bed| chert {"J" bea | From 1 To ness Zinc Lead
(| 220 225 5 3.40 +25
(| 225 227 1/2] 21/2! 2.87 18
Sheet (| 227 1/2) 230 21/2} 3.00 | Trace
Ground (| 230 232 1/2] 2 1/2| 2.50 -
(| 232 1/2) 235 21/2; ‘Thin -
Shines
16 |Silicification 168-245 875 ekg 87 | 182) 219-230 {| 182 187 5 Zine Lead
( Shines |Shines
(| 187 189 1/2' 21/2] 3.90 -60
"uM" bea (1189 1/2] 192 21/2} 4.20 331
({ 192 19h 1/2; 21/2] 3.87 20
' ({194 1/2} 197 21/2| 3.90 06
(| 197 199 1/2| 21/2| 2.78 | Trace
(j199 1/2! 202 21/2| 1.55 | Trace
({219 22h 5 3.22 -60
(| 22h 226 1/2| 21/2] 2.90 40
| Sheet (|226 1/2} 229 21/2| 2.10 Ok
| Ground ({229 231 1/2| 21/2] 1.90 | Trace
((231 1/2) 233 11/2| Zine |. Trace
( Shines .
17 |Silicification. 180-243 876 250 60 |180 |220-232 185 200 15 Thin Trace
. Shines
1220 225 5 2.96 36
225 2e7 1fe | 21/2 | 3.00 +10
| 227 1/2 | 230 21/2 | 2.66 05
| 230 232 2 1.92 +03
i | 232 234 1/2 |} 21/2! zinc |trace
|Shines

2955

- 52 -



oo =

° =

BS $3 gs

8 g8

asey ie \ ae L j g8
Feew T sf. ---- =} -------4-------4

zoey
yeew

SCALE IN MILES.
7

a
\

“4

sas _ 16

23
26
35

‘OKLAHOMA

A

55K
resin

|

|

|

iF

|

|
4

|

|

|

|

|

|

4

|

|
|
|
|
|
4
T29N,
raw

Figure 2. - Map showing contours of short creek oolite in Oklahoma and Kansas portions of tri-state district.



“sheet ground"

Block 5 - Indicated ore in 0, P, Q beds or

R.I. 4490

| psngee ss Nese nt _ . Zinc assay,| Lead assay,
. Depth Face | Zinc assay | Lead assay feet feet
..D.Hi 6 =. Elevation 871
651 | 646 i5 hee BeBL | 0-05 16.05 0.25
616 | 643 1/2 1 21/2 3.15 +03 7.88 08
6431/2 | 6kL 21/2) - 2.98 02 Toh5 05
! fio 3 elt OF 31.38 30
. DE 7 2 Blevation 872
651 646 65 fhe O09 20-10 0.45
646 , 6431/2 jar/el 342.1. 408 8.55 +20
643 1/2; Gh 21/2 2.97 Re 743 +10
641 i? 640 1 153 203 1.53 +03
! a ~ Of, 37.61 -8
D.H: 8 - Elevation 874
655 6g 1/2 | 51/2 3.85 | 0.86 | “21,48 Bh”
649 1/2 647 21/2 3.70 72 9.25 1.80
647: Ow rfe | 21/2 3.90 AL 7.50 1.03
6b 1/2 | eke 21/2 2.37 22 5-93, 255.
13 3237 -63 43 286 8.22
“pD 2 = Elevation 874 ~
655 652 3 : 2.86 1.02 8.58 | 3.06
652 é6hg 1/2 | 21/2 2.10 65 5.25 1.63
649 1/2 | 647 |2a/e 2.15 55 5.38 1.38
LY Ow 1/2 |21/2 1.98 0 495 1.00
6h 1/2 | dhe 21/2 1.52 21 “3.80 53.
. ka 2.15 50 27.96 7.60
DH. 10 - Elevation 874 ;
654 6h9 5 2.98, | 1.00 14.90 5.00
649 646 1/2 | 21/2 3.10 80 1.75 2.00
646 1/2 | Ob 21/2: 3.00 : 55 7.50 1.38
ann 642 2 2.95, : 215 5.90 230
ie 3.00 12 36.05 6.68
“DH. 11 - Elevation 873
652 O47 5 , 3.410 0.60 + 15.50 3.00
6h7 644 1/2 | 2 1/2 3.40 22 8.50 55
644 1/2 642 - 21/2}: 3.00 - 7.50 .0
6he 639 ie 21/2 242 - 6.03 0
. fe 1/2 3.2.00. 28 37.53 3.55.

- 39 -


R.I. 4hgo

Block 7 - Measured ore - floor stope in Reeds Spring formation

ATCA sc ccccernceravacasacocecs

see eeeeseees 19,800 sq. ft.

Less 10% for pillars etc. . vee 1,980 sq. ft.

Net mining aredes.csecses se cececeeeee 17,820 sq. ft.
Average thickness ore body (see drill hole

ANALYSIS) vecrecsvccecsesccececcscevccsseesseseeecs 10 ft.
Cubic feet in ore body.. eseree eee teens 178,200 cu. ft.
Tons of ore @ 12 1/2 cu. ft. to tonecesecesevevecere 14,256 tons.
Average percent of zinc in ore (see drill hole

ANALYSIS) vcecccccccccncesscvanceenescesececeseune 2.84% Zn
Average percent of lead in ore (see drill hole

BNALYSIS )veccvocecccercreserceevececevaseseeeecees 0.03% Pb
Tons of zinc in ore... woe seeeeee 405 tons
Tons of lead in ore... aoe teceeccce 4 tons

\

Pillars in M bed level of present mine workings equal to 20 percent of cut
area.

Pillars in 0, P, Q bed level equal to 20 percent. eof cut area also.

Fifty percent of these pillars can be recovered before closing down the
property and hence represent a considerable measured tonnage of ore reserves.

‘ Area in M bed level to be mined in pillars - 8,712 sq. ft.

Area in 0, P, Q bed level to be mined in pillars - 17,316 sq. ft.

Pillars estimated at actual heights and recoveries at the mill recovery to
date. no

Pillars on M bed level - measured ore

Area (that may be recovered)...
Average height of pillars.....

steeeeeeeeeeeesees 8,712 sq. ft.
. 15 ft.

setae

Cubic feet in pillars.c..sesesoee . . 130,680 cu. ft.
Tons of ore @ 12 1/2 cus Ft. to tonesesecscecsceeere 10,454 tons
Average recovery of zinc (according to Superin-

tendent's Pecords) sesessecsecececeeeserseeceeeenes | 3.90% Zn
Average recovery of lead (according to Superin-° no

tendent's records) ssccececccerecccecusesecssesseee 0.40% Pb
Tons of zinc in ores... 408 tons
Tons of lead in ores... 42 tons

Pillars on 0, P, Q level - measured ore

ATCA se sesceee
Average height of pi
Cubic feet in pillars...csacevevviocccscees

17,316 sq. ft.
10 ft.
173,160 cu. ft.

Tons of ore @ 12 1/2 cu. Pt. to tonysecesscsccaevees 13,853 tons
Average recovery of zinc (according to Superin-
tendent's records ).scccesscssssvcvccsscccccsseveves 3.40% Zn

Average recovery of lead (according to Superin-

tendent's records)..scccsceeere 0.37% Pb
470 tons
51 tons .

2955 ~ ks -


RECENT

PENNSYLVANIAN

MISSISSIPPIAN

[_ APPROX. 8 MILES +

AVERAGE - MELROSE DISTRICT

AVERAGE - PICHER DISTRICT

AVERAGE - WEBB CITY DISTRICT
MISSOURI

APPROX. 30 MILES

SHORT GREEK OOLITE

KANSAS & OKLAHOMA OKLAHOMA -—)
| -_-— Tm!
_. . . . . —_ mith
w IMPERVIOUS SHALE
S| occasiona sanor on
Ss. THIN SANDSTONE BEDS c 25"
&
x D 20° 1595
Ss E 5 _-7
BARTLESVILLE. sanpstone 2 _
SPORADIC POROUS LENSES 3 6 we
7 y HY 1e-
7 . __ LIT IC LS. BED, USUALLY r
OS [ELINE US., STRATIFIED ~ ERODED AWAY ogy 30’
g
LEACHED CHESTER LS. @F GREEN SHALE SEAM, 7 SHORT CREEK ITE
3" | resiou ‘USUALLY ABSENT, SHORT CREEK OOLITE
a a 20° “7
8,C,D BE BEDS (0-100) =~
FY F BED a
2
§| 6 aH Be0s . . —
K&L BEDS, usuaiLy AFTER FOWLER
. J BED ERODED AWAY E@MJ, NOV, 1943
SHORT CREEK OOLITE, ae ’ a
«| x ‘OFTEN ERODED AWAY
w) > f0'-20°
1a) & Leo
z| 4) § 1045"
we x =
sel tt | e-
gy 2 s 80't
8] 5 = USUALLY DARK GRaY,
4 = BLUE OR BROWN LS.,
| gle R BED OFTEN CHERTIFIED
2| 2. AFTER KNOX ---
an 25't
@ _) 41 ---
Re AFTER FOWLER
oe E.GM.J, NOV. 1943
a
ee
es ae

Figure 3. - Stratigraphic correlation,

tri-state mining fields.



R. I. 4490,
July 1949.

REPORT OF INVESTIGATIONS

UNITED STATES DEPARTMENT OF THE INTERIOR '- BUREAU OF MINES

ZINC-LEAD ORE FUSERVES OF THE TRI-STATE DISTRICT,
MISSOURI-KANSAS -OKLAHOMAL/

By Otto Ruhl,2/ Simeon A, Allen,2/ and Stephen P. Holt2/

CONTENTS

SUMMALY ooecccscacccccerececorece
Introduction ..sscscesnscseoes
Acknowledgments ..cocccecee
Work by Bureau of Mines ...
Methods employed. ...scscsvccsecceceseseseces
Tri-State district area and its general geology ...
Classification of ore reserves on 1 1/2-percent cut-off
Classification of ore reserves on 2-percent cut-off ..
Ore reserves now under WALEL ceceeceeecrecaceceeeee
Value of reserves at present prices .....
Reserves in relation to prices and costs ..
Distribution of present milling facilities .
Drainage and pumping problem ..ececececeeere
Relation of exploration to new ore reserves
Future prospects .....

APPENdix cesecsccrerecccerscecarerccesesesesscsesseascessseseseress 33
ILLUSTRATIONS
Follows
page.
Area map of Tri-State mining Gistrict ....cececcccrccccnccrece 2
Map showing contours of Short Creek oolite in Oklahoma and
Kansas portions of Tri-State istrict ..sverecccescveverecee 10
3. Stratigraphic correlations, Tri-State mining fields .......... 10

4, Map showing principal geologic features of Tri-State district. 14
5. Zine-concentrate price requirements in relation to mining and

milling costs and unit recoveries of concentrates ..essceses 20
6. Map of Tri-State district, showing location of concentrating

Hypothetical ore-reserve estimate - XYZ mine .ecsscecccscscacs 34

1/ The Bureau of Mines will welcome reprinting of this paper, provided the
following footnote acknowledgment is used: "Reprinted from Bureau of
Mines Report of Investigations #490."

2/ Mining engineer, Bureau of Mines, Joplin, Mo.

2955


R.I. 4490

TABLE 7. - Tonnage capacity, location, and status of mills in the Tri-State area (Cont'd)

Tons/hr.[ Operates

No. Name |__ capacity on Location Status
Kansas
1 | Youngman 30 Crude Ore| SE1/+ NW1/4 sec. 11, T35S, R23E Down since July 1, 1947.
2 | Captain 100 Tailings | SW1/4 SE1/4 sec. 11, T35S, R23E do.
3 Barr Clean-up | 25 Crude Ore} SE1/4 SE1/4 sec. 12, T358, R23E Operated by former employees
| of Sheldon, Moody & Granby.
4 Dines ko do. Fraction, sec. 18, T35S, ROkE Mostly custom dirt.
5 | Medison 50 do. SE1/4 Swi/4 sec. 10, T35S, Rk Shut down since 1944. -
6 | Ballard 8 109 do. swi/4 NE1/4 sec. 10, T35S, Rok Continuous operation.
7 | M&W Mining Co. 35 do. Nw1/4 SW1/4 sec. 35, T35S, ROvE Down June-Oct. 1947. Ran
Oct. 1947 to Jan. 1948.
Down.
8 | Beck Mining Co. 30 do. | SE1/4 SE1/4 sec. 2, T35S, ROE Runs occasionally on custom
dirt, mostly from
MacArthur.
9 | Wade Rea 8 do. Fraction, sec. 13, T35S, Ravn Mine shut down July 15, 1947 -
. some custom dirt milled.
| Mine and mill started Mar.
| 15, 1948.
10 | F. W. Evans 25 do. | SE1/4 NE1/4 sec. 25, T32S, R25E Runs intermittently, custom
11 ! Peacock 10 do. | NW1/4 NW1/4 sec. 24, T33S, RO5E | Being reconstructed.

2955

- 2h -




R.I. 4490

TABLE 3. - Ore reserves, by States, segregated into classes, showing grades
and concentrates of. zinc and lead on basis of 1 1/2-percent
cut-off for the same properties upon which 2=percent ~
cut-off calculations were made

Recoverable concentrates
A 60-percent zinc |. 80-percent lead
1 Percent | Tons i Percent __Tons

State | Tons ore

Measured ore

Kansas seseeel - it

Oklahoma ....! 2,039,500 j 5.14 104 ,838 O40 | 8,127
Missouri ....: 162,200 | 3.86 | 6,263 | 0.36 | 586
“By201, 100 5.05 | Til,10l | O40 | 8,713

Indicated ore
Kansas . "15,474,300 3649 j 540,060 | 0.51 : 79,632
Oklahoma {10,125,800 | 4.09 Wik 323. «0.60 | = 60,265
Missouri .... 4,684,400 , 4.73 | 221,603 =: 0,2h | 11,330
30,284,500 | 3.88 | 1,175,986 | 0.50 | 151,227

Inferred ore
Kansas . 7,163,500 ° 3.25 232,982 0.68 49,008
Oklahoma i QR 748,800. 2.85, 135,187 O41 1. 19,242
Missouri ...6/1 * 796,300 Wd 79,812 | 0.16 2,943
23,708,600 327 417,980 |__0.52 72,192
Grand total.. 46,194,800 | 3.76 | 1,735,067 | 0.50! 231,132

TABLE 4. - Ore reserves, by States, segregated into classes, showing grades
and concentrates of zinc and lead on basis of 2-percent cut-off
for a portion of the Tri-State district - December 31, 1947

Recoverable concentrates
i___60-percent zinc 80-percent lead
State ‘Tons ore | Percent | Tons | Percent | Tons
i Measured ore :
Kansas vesese |

Oklahoma, .... , 1,962,100 52h 102, 784 Owl | 8,061
Missouri ....: 139,700 438 6,115 i o.m 571
2,101,800 5.18 i 108,899 aes 8,632

a Indicated ore
Kansas ...0-- 7,546,700 E57) | 3h 669 : 0663 | 47,362
Oklahoma ...., 7,411,700 4 AS 331,882 > 0.62 | 45,614
Missouri . 3,573,300 5.40 192,972 | 0.29 | 10,328
281532,.100 i 1,69 869 523 [0-56 | 103,304

inferred ore
Kansas ...4-6 } 3,375,500 3.99 | 134,702 1.09 36,869
Okleahom ... +12, 7563,000 | 3.87 99,180 | 0,66 16,898
Missouri ..../1 °536,,700 i 4.85 | TH 57 | 0618 2 825
“775.200 ! 113 308,456 [| 0.76 56,592
Grand total . 28,108, 700 ! 4.58 1, 286,878 {0.60 168 528

2955 - 16 -


A Century of Conservation


RI. 4490

Accompanied Mr. X and went underground at shaft No. 1. Both shafts,

Nos. 1 and 2, are 5 by 7 feet in the clear. First level at 205 feet or

669 feet sea-level elevation. Pump station at this shaft at lower level,
handling 800 g.p.m, through drill hole. First level in M-bed formation.
Heavy solution action evident in east, west, and south headings. General
_course of mineralization northeast-southwest, but disturbance noted along
south wall where a drift has béen driven south. East wall of south drift
in barren ground, but west wall all in good ore. Fracturing lines in south
drift show in roof trending slightly west of north. These break into stronger
fracture lines near the center line of the min northeast-southwest drift,
where fractures in the roof trend northeast-southwest. The north wall main
northeast-southwest drift is cut along barren ground almost. from the two
extremitios of the east and west headings. Drill logs indicate ore trends
genorally in a regular course northeastward from drill hole 24 to the head-
ings of tho Run-Away-Al mine cut up to the northeast corner of this lease.
Both the mining end drilling indicate that this main trend of mineralization
was altercd in direction at drill holes 14, 15, and 16, and. the south drift
on this level demonstrates that the change in course arose from the cross
fracturing occurring at this point. The mineralization course again changes
between drill holes 16 and 17, and drill holes 25, 26, 38, 39, 41 and he
apparontly connect this ore body with that of the Connecticut Yankee, where
a drift is cut up to the line at the southwest corner of the lease. The
points on the map numbered Q, R, S, T, U, N, 0, and P were selected for
estimating recovery values for blocks extending into virgin territory and
toward drill holes. These estimates were as follows:

- Uy-ft. face - 4.75% Zn - 0.25% Pb
- 15-ft. face - 3.85% Zn - .15% Po
- 15-ft. face - 4.00% 15% Po
ls-ft. face - 5.00% Zn - .40% Po
- Us-Pt. face - 4.50% Zn - .50% Pb
- 15-ft. face - 5.25% Zn - .60% Pb
- 15-ft. face - 4.35% Zn - 40% Pb
- 15-ft. face - 5.50% Zn - .75% Pb

POSBQHAHWDO
1
1

u

The ground is well-supported by pillars, averaging 20 percent of cut
ground. Average height of roof approximates 15 feet.

All ore mined on this level hoisted from No. 1 shaft and all track in
ground designed to meet that requirement.

The lower. level is at 640 feet sea-level elevation, and drifts are not
so high as the upper level, averaging approximately 12 feet. Ore is typical
"sheet ground" in chert. The geological horizon is the 0, P, and Q beds.
Headings are being driven both north and south. The east and west walls
are barren or too thin for working. The greatest brecciation lies in a belt
about 40 to 50 feet wide just north of the south headings. In the floor of
the mine, which is in the Reeds Spring formation, the ground is broken up in
well-mineralized fracture cracks. Three 6-foot winzes have been sunk in the
floor to test this showing. Ore is just east of drill hole 14, another just
west of drill hole 55, and a third just west of drill hole 2. Ore was

2955 - 34




R.I. 4490

The importance of the Oronogo-Wcbb City-Duenweg reserves has already
been discussed under the head of "Reserves Under Water," with the probable
cost of drainage and mill equipment.

DRAINAGE AND PUMPING PROBLEM

Mining of the remaining reserves of zinc and lead ore in the Tri-State
field depends largely upon maintenance of drainage of water from the ore
deposits. Nearly all of the larger deposits occur below the natural level
of ground water, and the water flowing into mine openings mst be continually
removed by pumping it to the ground surface and conducted to stream channels
through which it can flow away and not seep back into the mines. The volume
of such mine water was 25 million gallons a day in the interconnected mines
of the Oklahoma-Kansas portion of the district alone. This was handled by
50 pumping plants operated by 20 different mining companies during the
period of full-scale mining operations before June 1946 -16/

Figure 7 shows the locations of the different pumping plants in the
Oklahoma-Kansas portion of the field as of May 1947, Teatle 9 lists the
pumping plants in the Oklahoma-Kansas portion of the district as of March
1948, with their capacities and notes indicating where "spill-over" will
occur. The "spill-over" points are locations where the water from one mine
or group of mines will begin running into the next mine or group of mines, in
case of stoppage of pumps. :

Study of figure 7 and table 9 shows that in May 1947 » in the Oklahoma-
Kansas portion of the district alone, 63 pumping plants were handling an
inflow of 25,445 gallons of water a minute, or 36,640,800 gallons per 2h
hours. In March 1948, after the payment of subsidies on zinc and lead
ended, 39 pumping plants were handling 21,175 gallons a minute or 30,462,000
gallons a day. Of this water, 7,000 gallons a minute was new pumping from
the Garrett shaft of the. Lavrion Mining Co., where a mine which has been
under water for several years was being pumped out, necessitating drainage
of a large surrounding area.

These figures show that there is now accumlating daily in the mine
workings of these two States a total of 6,148,800 gallons of water, which
will gradually encroach upon the active mining levels of the field and close
them down unless stopped by resumption of pumping operations.

In 1943 the Bureau of Mines drained the Park-Walton:areal7/in the Melrose
district, 7 miles west and 1 to 3 miles north of Picher, Okla. Using three
deep-well turbine pumps, 3/4 billion gallons of water were pumped over a period
of 6 1/2 months, lowering the static artesian water level, over a 6-mile square
area, by 208 feet. The work made it possible to open and mine the Park-Walton
and the T. R. Smith ore deposits and encouraged further development: in the
Melrose district.

16/7 Ruhl, Otto, Tri-State Zinc-Lead Ore Reserves: Bureau of Mines Rept. of in-
vestigations 3922, 1946, 7 pp. , :

17/ Knox, Clinton C., Investigation of Melrose Zinc-Lead District, Ottawa
County, Okla., and Cherokee County, Kans.; Bureau of Mines Rept. of In-
vestigations 4337, 1948, 92 pp.

2955 - 27 -


R.I. 4490

and milling, it would require a price of $118.47 per ton of combined con-
centrates to produce this ore and allow a profit of 50 cents per ton of
ore mined and return of the capital Invovtmcnt. All the dctails

of equipment and cost were set out in a special report for the War Produc-
tion Board in May 1943.

VALUE OF RESERVES AT PRESENT PRICES

Concentrates sold in 1947 were on the basis of subsidies for both zinc
and lead. concentrate up to June 30. After that date prices reverted to an open
market. The Bureau of Mines Economics and Statistics Division Report of
January 1948 summarized the Tri-State 1947 market as follows:

The weekly quoted price of zinc concentrates at Joplin in
1947 was $64.00 from January through August and $70.35 for the
rest of the year. From September 1 through December the Eagle-
Picher Mining & Smelting Co. paid $72.00 a ton for concentrates
made from ore shipped to its Central Mill. The quoted price of
lead concentrates was $160.50 a ton for the week ended January
4; $166.85 from January 11 to February 22; $181.25 March 1; and
$195.65 from March 8 through December. Government premium pay-
ments from January through June averaged $55.89 a ton of zinc
concentrates and $7.43 a ton of lead concentrates.

On the basis of December 1947 prices of $72.00 for zinc concentrates
and $195.65 for lead concentrates, the value of the zine concentrates in
the ore reserves is $172,975,176 and that of lead concentrates $61,169,977,
or a total of $234,145,153.

RESERVES IN RELATION TO PRICES AND COSTS

Prices and premium payments for zinc and lead concentrates were fixed
by the Government on a quota basis during the war. The ceiling or so-called
"market" price for zinc concentrates of 60-percent grade was set at $55.28
and for lead concentrates of 80-percent grade at $76.01. Premium prices
above the ceiling were awarded to various mines according to the grade of
ore mined, the tonnage produced, and the cost of production. For zine con-
centrates there were three premium-price levels:

A - Quota price - base $55.28 + $29.70 = $ 84.98 per ton

B - Quota price - base $55.28 + $59.40 = $114.68 per ton

C - Quota price - base $55.28 + $89.10 = $144.38 per ton
For lead concentrates two bases were established as follows:
A - Quota price - $76.01 + $41.80 = $117.81

B - Quota price - $76.01 + $83.60 = $159.61

2955 - 19 -


R.I. 4490
shall use his best judgment in making an estimte, using all
the evidence of the ground personnel together with the actual
mill recovery by the mill of that mine if available.

Delineating Areas of an Ore Body

The polygon system of outlining an ore body does not
lend itself well to such work in the Tri-State district, and
is not used in general engineering practices of the field.
The Bureau of Mines has attempted to use it upon those prop-
erties where drilling projects have been under its own juris-
diction, and finds it will not permit the use of judgments of
the engineers in the field fully warranted by the facts of
structure, drill hole characteristics. and knowledge of for-
mation. Hence to provide better results more in line with
the field facts, standard engineering practice of the Tri-State
area shall be employed in this report. Areas are outlined in
blocks, determined by the character of the holes and mining
faces and rot by an arbitrary system of polygons determined
only by the position of the holes on the map. Blocks may be
designated either by letters or numbers and the areas’ com-
puted by a planimeter.

Working -Map Legends

For outlining drilled virgin areas, a cross-hatched
blocking shall be used. Roof is shown by hatching in vertical
lines. For areas in floors the hatching shall be in horizontal
lines. The area is to be surrounded by a slightly heavier line
than that delineating the mine workings. Sea level elevations
shall be shown for all collars of shafts and drill holes and
the roof and floor elevations of the mines. The floor elevation
shall be shown with a.line over the figure and the roof with a
line under the figure. If ore horizons are shown on the map
with regard to drill holes they shall be expressed in sea level
elevations. The following will serve as an illustration:

Zn 4.30% - 760-750 D.Hs 15

Zn 5.15% - 750-740 890

Zn 3.00% - 740-730 0
Units of Measurement

Unbroken ore in place shall be estimated at 12 1/2 cubic
feet to the ton. :

Classification of Reserves

Classification of ore blocks shall be "measured ore," "in-
dicated ore," and "inferred ore," conforming to the normal
practice of the Bureau of Mines and the Geological Survey. Due

2955 -9-


R.I. 4k90

Abstracts of drill logs of XYZ mine

i || Grand | L horizons Analysis
Hole| Totall Depth "M"| Falls | . Thick- TO
No. Remarks bed| chert From To ness Zinc Lead
1 |Silicification from 180-250) 186} 220-232) (186 189 3 3-0 1.10
Short Creek Oolite at 183 ({189 191 1/2] 2 1/2 4.23 +90
({191 1/2] 194 21/2 | 5.01 72
(j194 196 1/22 1/2 | 4.87 43
(1196 1/2} 199 21/2 3.10 332 >
(199 201 2 1.69 16
(j201 206 5 1.28 0
(|220 222 1/2\2 1/2 2.42 0.82
(j222 1 205 21/2 | 3.10 4o
({225 2e7 1/2;2 1/2 | 2.85 31
(227 1/2] 230 21/2 2.25 11
({230 232 1/2j2e 1/2 | 1.45 +10
2 |Silicificetion 190-253 189] 22h-233 (1190 195 5 3.10 | 1.02
Black Jasperiod Heavy ()195 197 1/2|2 1/2 | 2.80 -80
From 233 to 248 (j197 1/2} 200 |2 1/2 | 8.10 | | .75
| 200 202 1/2j2 1/2 | 6.11 +30
| 202 205 21/2 |} 2.10 225;
(224 226 2 2.34 1.20
( 226 228 1/212 1/2 3.22 «90
( 228 231 2 1/2 | 2.20 82
i (232 233 1/2\2 1/2 | 2.00 +10
( 1233 235 1/2 1.80 | 0.05
( (235 238 1/2 | 1.55 205
( (238 eho 1/2 1/2 | 2.10 210
( 2ho 2h3 1/2 | 3.10 03
( fek3 ,2h5 1/2 eb 1/2 4lo 02
\ ( je45 1/2 i bu 1/2 | 1.40 01
2955 -47 -



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SLENDER SALLY LEASE

BiG MOGUL LEASE

R45E

XYZ MINE
OTTAWA GOUNTY, OKLAHOMA

APRIL 25, 1947

LEGEND

MINE WORKINGS, SHEET GROUND LEVEL
MINE WORKINGS, 'M" BED LEVEL
MINE WORKINGS, REEDS SPRING STOPE
HEADING IN ORE, SHEET GROUND LEVEL
HEADING IN ORE, ‘M" BED LEVEL

a)

VIRGIN ORE BLOGKS, SHEET GROUND

VIRGIN ORE BLOCKS, "M" BED
ORE BLOCKS, STOPE FLOOR
ORE BLOCKS, ROOF

ROOF ELEVATIONS
680 =~ FLOOR ELEVATIONS

DRILL HOLES WITH WORKABLE ORE
OTHER DRILL HOLES

LOCATIONS 4, B,C, ETC. : HEADING ESTIMATES

SCALE IN FEET.
200 300

——

0 100 400 500

All Information on this Map is Imaginary.

Figure 8. - Hypothetical ore-reserve estimate map.



R.I. 4490

penetrated all the way and was still good in the bottom. The holes could
not be sunk deeper on account of water. Drill holes 14 and 2 showed this
ore. Later drill holes 55 and 56 were sunk to further test this floor ore
below the winze bottoms. Estimates of these three winzes were as follows:

* Winze - 10-ft. face - 3.00% Zn - 0.05% Pb
** Winze - 8-ft. face - 2.50% Zn - .02% Pb
¥e* Winze - 10-ft. face - 3.00% Zn. - . .02% Pb

Points in the south line of headings were selected at E, F, G, H, I, J, K,
L, and M for estimating possible recoveries. These estimates are as follows:

E = 12 1/2-ft. face - 3.00%'Zn - 0.25% Pb
F - 13-ft. face - 2.90% Zn - .25% Pb
G - 13-ft. face = 3.00% Zn - .25% Pb
H- 12 1/8-ft. face - 3.00% In - .25% Po
I - 12 1/2-ft. face - 3.00% Zn - .25% Pb
J - 13-ft. face - 3.20% Zn - .20% Pb
K ~ 12-ft. face - 2.50% Zn - .35% Po
L + 12 1/2-ft. facé - 2.90% Zn - .20% Pb
M = 12 1/2-ft. face - 2.75% 2n - .30% Pb

Points along the north line of headings were selected for estimates at points
A, B, C-and-D. The estimates were as follows;

A - 12-ft. face - 3.00% Zn - 0.60% Pb
B - 12-ft. face - 2.80% Zn - .20% Pb.
C - 13-ft. face - 2.80% Zn - .20% Pb
D - 12-ft. face - 3.00% Zn - .90% Pb

This level was well-mined and pillars well-designed for roof support. They
averaged 20 percent of the ground cut. This level will supply a sizable
block of reserves to take out after all the headings. are driven into barren
walls. All ore mined on this level is hoisted through No. 2 shaft..

The superintendent supplied the following information in addition to
maps and copies of all drill logs:

Amount of water pumped - 800 g.p.m.

Capacity of mill - 600 tons per day.

Recovery average for 1946 on M-bed level ore - 3.90% Zn,
0.40% Pb.

Recovery average for 1946 on 0, P, Q.level ore - 3.40% Zn,
0.37% Po.

Cost of mining and milling for 1946 - $2.86 per rock ton.

Royalty paid land owner - 10%.

2955 - 35 -