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35

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Hole 16-4

Begun: January 31, 1958 Elevation above sea level: 645 feet
Completed: March 12, 1958

Churn Drill

Depth, feet

From- To- Formation
0 15 Surface soil, chert and clay.
15 75 Light gray chert, brown clay seams.
75 90 Dark gray chert.
90 115 Dark gray chert with intrabedded limestone.
115 1185 Light gray limestone, probably St. Clair formation.

Core Drill

118% 126% St. Clair limestone.

126% 138 Cason shale.

138 160 Manganiferous Fernvale limestone.
160 165 Barren Fernvale limestone.

Analysis, percent
P

115 119 0.77 0.55 (Churn Drill Sludge)
119 130 -30 -08 (Core)

130 137 31 -08 Do.

137 140 8.15 -62 Do.

140 145 7.38 +22 Do.

145 150 4.77 +29 Do.

150 155 5.69 +21 Do.

155 160 3.69 19 Do.

160 162 46 ell Do.

No radioactivity found.


Begun:
Completed:

Depth, feet
To-

From-

141
167

153
1614
166%

Begun:
Completed:

Depth, feet
To-

From-

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

May 20, 1957
June 4, 1957

5
70
85

100
135
141

167
176%

1615
166%
1715

June 7, 1957

B-5
Elevation above sea level:
Churn Drill
Formation
Surface soil and chert rubble.
Chert, iron stained.
Chert, light gray.
Chert, light yellow.
Chert, light gray.
Chert and red limestone.
Gore Drill
Manganiferous limestone.
Manganiferous clay with chert.
Bottom at 176% feet.
Analysis, percent
Mn Fe P Insoluble
4.13 - - -
3.21 - - -
8.99 - - -
B-6
Elevation above sea level:

June 11, 1957

All With Tricone Bit

Formation

Surface soil and clay.

Light gray shale and minor chert.

Red clay and minor chert.

Pink clay.

Red clay and minor chert.

Chert--porous.

Chert and sand.

Light gray porous chert and some clay.
Unconsolidated finely brecciated porous chert.

No radioactivity indicated by geiger counter.

Bottom at 166 feet.

595 feet

555 feet


40

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Hole 16-9

Begun: April 6, 1958 Elevation above sea level: 700 feet
Completed: April 18, 1958

Churn Drill

Depth, feet

From- To- Formation

0 10 Surface soil, chert rubble and clay.

10 80 Light gray shale with clay seams.

80 100 Thin-bedded dark gray chert and limestone.
100 106 Light gray limestone.

Core Drill
106 140 Manganiferous limestone.
140 145 Barren limestone.
Bottom of hole.

Top of Fernvale above sea level: 597 feet

Analysis, percent

Mn P
106 110 0.29 0.55
110 115 -30 44
115 120 -46 31
120 125 4.61 +29
125 130 2.92 +26
130 135 +62 ell
135 140 292 +28

No radioactivity found.


HISTORY OF DEVELOPMENT, MINING, AND BENEFICIATION

Manganese ores were first produced from the Batesville district in 1849,
thereafter mining continued with few interruptions. However, most of the pro-
duction came in two periods--from 1885 to 1898 and from 1915 to 1959. Output
through 1959 totaled about 303,400 dry long tons of manganese ore (35 percent
or more manganese), and 236,000 dry long tons of ferruginous manganese ore (10
to 35 percent manganese). Peaks in production were reached during World Wars
I and II, 1917-18 and 1944-45. Following the Second World War, the major part
of the production consisted of ores containing at least 40 percent manganese.
There has been no production since termination of the Government's Domestic
Manganese Purchase Program in August 1959. Early mining activities are
described in detail by H. D. Miser (7).

Prospecting, ore development, mining, and mineral-dressing practices in
the Batesville district have been described in detail by Kline (4). The fol-
lowing paragraphs give only a brief summation of information on these subjects.

Most mining operations were small scale. Mining practices remained vir-
tually unchanged throughout the history of the district, modified only by the
more recent use of bulldozers and, to lesser extent, by the use of power
shovels for prospecting and stripping hillside deposits. Manganese oxides
have been produced from all types of deposits, and a significant quantity of
carbonate ore has been produced from the Fernvale limestone and Cason shale
formations. Both manganese ore and ferruginous manganese ore have been pro-
duced, but from 1951 to the close of mining activities in 1959 the grade of
shipped ore was consistently 40 percent or more manganese. During that period
there was no market for ferruginous manganese ore. Most of the ore has been
produced by selective hand-mining methods from both open pit and underground
mines developed in residual clay deposits; a lesser quantity has been produced
from operations which involved washing or other upgrading of low-grade mate-
rial mined either by hand or by power shovels.

In early years deposits in residual clays and under shallow overburden
were explored and mined by hand-dug pits. In recent years, bulldozers were
used to remove shallow overburden and expose manganese bodies in the under-
lying clays. Beginning in 1942 the churn drill was used occasionally to
explore residual clays overlain by medium and heavy overburden, Shafts were
hand-sunk to develop and mine significant ore zones indicated by the drilling.
The standard mine shaft was 4 by 4 feet in the clear, cribbed where necessary,
and equipped for ventilation. Hoisting was by hand windlass or gasoline-
powered machine.

All mining was by hand in open pits and in underground workings leading
from pits and shafts, except for a few attempts to bulk mine low-grade mate-
rial with power shovels. Mined ores were hand sorted, usually into high grade,
No. 2 ore, and wash dirt, and placed in separate piles near the workings. Pay-
ment for the work usually was made on the basis of a contract price per ton of
salable ore.

Figure 4 shows the approximate locations of most of the prospects, mines,
and beneficiation plants that were active in recent years. Table 1 is a list-
ing of the prospects, mines, and plants by name.


50

Begun:

Completed:

Churn drilled:

Sampled interval:

Depth, feet

From-

0
5
103%
143%
204

212%
217%
225
230
235

To-

5
103%
1435
204
250

217%
225
230
235
240

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Hole 26-1

(Sec. 26, T 14 N, R 6 W)

April 3, 1961 Elevation above sea level: 460 feet
April 27, 1961

- 250 feet

212% - 240 feet

Formation

Surface soil, brown clay, light gray to white chert.
Thin-bedded limy chert.

Black, hard shale, slightly pyritic.

Dark gray, limy chert.

Light to dark gray, coarse-grained limestone, in part
manganiferous.

Analysis, percent

3.30
3.75
+46
231
~30

INT. eDULOF MINES.PGH. PA. 6878


48

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Begun: February 14, 1961

Hole 8

Elevation above sea level: 412 feet

Completed: March 8, 1961

Churn drilled:

Sampled interval:

Depth, feet
To-

From-

0
5
36
52%
72%
81%
106
114
116
150

116
122%
127%
132%
1373
1425
147%

Composite
116

5
36
52%
72
81%

106

114

116

150

151

122%
127%
1325
137%
142%
147
150

150

0 - 151 feet
116 - 150 feet

Formation

Surface soil, brown and gray chert, red clay.

Light to dark blue chert, brown clay.

Light gray limy chert, very hard.

Dark gray chert, some pyrite, glauconite.

Blue-gray shale; minor pyrite.

Dark gray chert.

Light gray, limy chert.

Light gray, pink and white fine grained limestone.
Manganiferous limestone and shale.

Pink to white limestone, shale, slightly manganiferous.

Analysis, percent

Mn Fe P
2.68 - -
4.67 - -
4.51 - -
4.44 - -
4.47 - -
5.13 - -
4.28 - -

3.34 0.58




46

TABLE A-2. -

Begun:
Completed:

February 3,
February 9,

Churn drilled:
Sampled interval:

O-
20 -

Depth, feet

From- To-

0 5

5 20
20 45
45 47%
20 25
25 30
30 35
35 40
40 45

Composite

20 45

Logs of Bureau of Mines drill holes (Con.)

Hole 6

1961
1961

Elevation above sea level: 290 feet

475 feet
45 feet

Formation
Surface soil, brown, light to dark chert, brown clay.
Brown chert, light gray chert, dark brown clay.

Manganiferous limestone.
White and pink, coarse-grained limestone.

Analysis, percent

Mn Fe P
8.72 - -
5.36 - -
5.51 - -
4.90 - -
3.67 - -
4.68 0.37


L

EGeEN OD
QUATERNARY ALLUVIUM
BOONE, ST. CLAIR
CASON-FERNVALE CONTACT
FERNVALE LIMESTONE
PLATTIN. LIMESTONE
NORMAL FAULT
SYNCLINAL FOLD
INTERMITTENT STREAM
COUNTY ROAD

TRAIL

MARTIN. MINE

FM. BARNES MINE
BUTTON PROSPECT

GENTER, SEC. 14

SCALE, FEET

200 400-600-800
CONTOUR INTERVAL , 1 feet

SECTION AA

SECTION 8'-B

FIGURE 10. - Geologic Map and Cross Sections, Barnes-Martin Area.

8T


36

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Hole 16-5

Begun: February 10, 1958 Elevation above sea level: 675 feet
Completed: March 14, 1958

Churn Drill

Depth, feet

From- To- Formation
0 5 Surface soil, chert and clay.
5 15 Light gray chert and red clay.
15 17% Light gray shale with brown clay.
77s 82% Light gray chert.
82% 105 Dark gray chert.
105 121 Dark gray chert with intrabedded limestone, minor
pyrite.
121 125 Dark gray limestone, St. Clair formation, minor
pyrite.

Core Drill

125 131 St. Clair limestone.

131 145 Cason shale.

145 165 Fernvale limestone, with pyrite and minor manganese
mineralization.

Analysis, percent

Mn P
131 135 0.45 0.08
135 140 231 -06
140 145 30 1.71
145 150 92 342
150 155 46 235
155 160 745 17

160 165 Not analyzed.


CONTENTS

Page
Abstract.....eeeeeeee oe 1
Introduction........ eee 1
Acknowledgments..... .- sees 2
Location and physical features. 2
Geology and ore deposits.....+ss.e0- 2
History of development, mining, and beneficiation........ 8
Reconnaissance of manganiferous areas 11
Churn and core drilling.......... . 12
Baxter hill.... . 13
Section 16 area. sees 13
Detailed study of particular manganiferous limestone areas............... 13
Hankins Hollow area...... see socecccccccccccvccecseses 16
Barnes-Martin area..... 16
Cave Creek area.. a eeeee 16
Polk Bayou and other areas 19
Manganiferous resourceS.....+eseeee «. 23
List of references.. sees eee 25
Appendix.....-.sesee eeeee wee 26
ILLUSTRATIONS
Fig.
1. Batesville manganese district, Arkansas..... eeeoe ooceee 3
2. Generalized sections of sedimentary rocks exposed in Batesville
GiStrict..ceccecsereevccsevee Deen cece nee e reer reer ee reeeeeeeecrees 4
3. Idealized section showing modes of occurrence of various types
OF dePpOSitS..resecsecrscvccccvcee Peer creer oe crcesecse ees eenseens 7
4. Mines, prospects, and beneficiation plants--Batesville manganese
district, ArkanSaS...eeseccesscrcccccrcccerseccsccncvcerevsecrves 9
5. Channel sample sites, secs. 14 and 15, T 15 N, R 8 W,
Independence County, Ark....-eeeeececeeceee seer eee eee 11
6. Channel sample sites, secs. 2, 3, 4, 10, and 11, T 14 N, R 8W,
Independence and Izard Counties, Ark...seecssccescccrecevcesseeee 12
7. Bureau of Mines drill holes, Baxter Hill, sec. 22, T14N, R 6 W,
Independence County, Ark. .ccccssccccccccccccccccccccccsececceceee 14
8. Bureau of Mines drill holes, secs. 16 and 21, T 14 N, R 6 W,
Independence County, ArK.ccescccecscerccccsvcersecrevressvesees 15
9. Geologic map and cross sections, Hankins Hollow area see 17
10. Geologic map and cross sections, Barnes-Martin area. cevecceeee 18
11. Geologic map, Cave Creek ared...esececereccescereee e+eeeeee (Pocket)
12, Idealized cross sections, Cave Creek area. seeeee 20
13. Geologic map, Polk Bayou area......eeeeee - (Pocket)
14. Idealized cross sections, Polk Bayou area. ereeee ceeeceeceee 21
15. Bureau of Mines drill holes, secs. 26 and 34, T 14N, R 6 W,
Independence County, Ark....ceccceccccccccseveee cece eceneccevesee 22


Begun:
Completed:

Depth, feet
To-

From-

102

Begun:
Completed:

Depth, feet
To-

From-

(0)

5
65
110

125
135
145
150
160

195

29

TABLE A-2. - Logs of Bureau of Mines drill holes

April 26, 1957
May 29, 1957

5
70
80
94

102

117

May 3, 1957
May 27, 1957

5
65
110
125

135
145
150
160
195

205

Baxter Hill
(Sec. 22, T 14.N, R 6 W)
B-1

Elevation above sea level: 641 feet

Churn Drill

Formation

Soil, clay, and chert.
Chert and clay.

Chert and limestone.
Open cave.

Fernvale limestone.

Core Drill

Barren Fernvale limestone (partially decomposed).
Bottom at 117.

B-2

Elevation above sea level: 629 feet

Churn Drill

Formation

Chert rubble and surface soil.

Boone chert.

Mixed chert and limestone.

Alternating thin-bedded chert and limestone with minor
pyrite.

Alternating thin-bedded chert and limestone.
Chert-limestone-sandstone and clay.

Chert.

Alternating thin-bedded limestone and chert.

Barren Fernvale limestone.

Gore Drill

Barren and partially decomposed Fernvale limestone.
Bottom at 205 feet.


alien :
mK: Ach f

FIGURE 8. - Bureau o

f Mines Drill Holes, Secs. 16 and 21, T 14N, R 6 W, Independence

County, Ark.

ST


21

450
400
350
300
250

Polk Bayou
Hole No.2

Hole No.6
Hole No.3

Feet Above Sea Level

200- N 20°E

450
400
350
300

Polk Bayou

Hole No. 4
Hole No.!

Hole No. 3

a

Feet Above Seo Level

500
450
400
350
300

Feet Above Sea Level

250

200 N 45° W

LEGEND POLK BAYOU AREA
Independence County , Arkansas
T-I-N,R-6-W & T-14-N,R-6-W SCALE
(7) QuaTERNARY MANGANIFEROUS LIMESTONE
BOONE CHERT PLATTIN LIMESTONE ° 200 400 600 B00 Feet
BARREN FERNVALE LIMESTONE _————

FIGURE 14, - Idealized Cross Sections, Polk Bayou Area.


7 /

vA

Sf tb —E G EN D
So SWE OUTCROP PATTERN, MANGANIFEROUS FERNVALE LS.
J. _-°7 INTERMITTENT STREAM
MINING ROAD
TRAIL
© @ Enotes cut mine

T 3 @® Pittman MINE
4 ;
" of ] @ sKerton mine

gf
A \

4 2

=
B
~~]
| secs
SEC 10
va Idealized cross sections showing attitude
. of manganiferous Fernvale limestone beds
J SCALE, FEET
ct 2 contoun orroras, ore"

FIGURE 9. - Geologic Map and Cross Sections, Hankins Hollow Area.

LI


30

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

B-3
Begun: May 10, 1957 Elevation above sea level: 630 feet
Completed: June 12, 1957
Churn Drill

Depth, feet
From- To- Formation

0 5 Topsoil and chert.

5 20 Chert and red clay.

20 35 Chert rubble.

35 70 Chert.

70 75 Chert with thin-bedded limestone.

75 80 Chert with thin-bedded limestone.

80 90 Intrabedded chert and limestone.

90 109 St. Clair limestone--minor shale.

Tricone Rotary Bit

109 115 St. Clair limestone and Cason shale.
NX Core Bit
115 122 Manganiferous limestone.
122 125 Fernvale limestone--baren. Bottom at 125 feet.

Analysis, percent

Mn Fe P Insoluble
115 122 0.26 3.10 0.31 1.50
B-4
Begun: May 15, 1957 Elevation above sea level: 550 feet

Completed: June 7, 1957
Churn Drill

Depth, feet

From- To- Formation
0 20 Red clay.
20 45 Light gray clay (no chert).
45 120 Red clay.
120 129 Chert and clay.
129 182 Broken light gray chert--clay-filled crack, churn

drill unable to clean hole, rock caving from sides.

Rotary Tricone Bit

182 271 Broken chert and clay-filled seams. Hole stopped in
material inferred to be residual clay in broken chert.
Bottom at 271 feet.


12

ie

=r

.

LD.

a=

SCALE, MILES
LEGEND ° ve j
@-! Somple site CONTOUR INTERVAL, 100 feet

FIGURE 6. - Channel Sample Sites, Secs. 2, 3, 4, 10, and 11, T 14.N, R 8 W, Independence
and Izard Counties, Ark.

CHURN AND CORE DRILLING

It is not practical to list the numerous landowners, lessees, and mine
operators in the Batesville manganese district. Land ownership constantly
changes as do lessees; and many mine operators have, since the end of produc-
tion of manganese in 1959, turned to other work.

Location and ownership of the properties on which churn and core drilling
was done follow:

Location of area, T14.N, R6W = Acres Owner or controller
oe 360 Arkansas Mining and Exploration Corp.
see eeeceee 40 WwW. A. Chinn

S3NEX and SEXNW;, sec. 22..
EXSW% and S%SWZSE%, sec. 22.... 100 +W. W. Gibbens

Part of N}SEXSEXSEX and part

of NkSWESEX, sec. 22......0006 117 George and Dora M. Heyde

oe 120 U. S. Manganese Corp.

SEX, SC. 32... eee ceeeeeee . 160 Edgar Baker
SWZNE%, sec. 26.. aeons 40 Earl A. Poole
SWINWE, SEC. B4..erseseeeeeeeee 40 Charles Beers





COMPOSITE SECTIONS

ALL ROCKS EXPOSED
IN BATESVILLE DISTRICT

SYSTEM

ROCKS EXPOSED IN MOST OF
PRINCIPAL MANGANESE - BEARING

AREAS

FORMATION

Quaternary
alluvium

Tertiary a

sand & gravel

Boone Chert

St. Joe Limestone
—UNCONFORMITY
Cason Shale

IN BATESVILLE DISTRICT

FORMATION

Quaternary @ Tertiary
Alluvium sand & gravel

Batesville Sandstone

THICK -
NESS
(FEET)
0-100

20-200

Moorefield Shale

100-250

Boone Chert

St. Joe Limestone

UNCONFORMITY
Chattanooga Shale
f+ UNCONFORMITY
Penters Chert
UNCONFORMITY

300-400

—UNCONFORMITY

Fernvale Limestone

—UNCONFORMITY

Kimmswick Limestone

— UNCONFORMITY

Plottin Limestone

—UNCONFORMITY

Joachim Limestone

\
20-150 ~\
N

St. Peter Sandstone

N

\
120-200 \
\

SILURIANDEXS) M1SSISSIPPIAN

Lafferty Limestone

St. Cloir Limestone 0-100
Brasstield Limestone o-2
Cason Shale a= O=/
1 UNCONFORMITY : 2
Fernvale Limestone tH 0-125
UNCONFORMITY —
Kimmswick Limestone 12-55
Z /-—-uNcONForRMITY
Z| plattin Limestone 128-240
© /-—UNCONFORMITY —
— | Voochim Limestone 20-150
>
OQ} s+. Peter Sandstone 120-200
a
f+ UNCONFORMITY el
a
O | Mognesian Limestone 210+

ond Small Amount of

Sandstone

FIGURE 2. - Generalized Sections of Sedimentary Rocks Exposed in Batesville District.


27

TABLE A-1. - Data on channel samples of manganiferous material (Con.)

Sample Location Sample |Inter- Analysis
site |Quar-|Quar-|Sec.|/T N Rock formation number] val, Mn, P,
ter | ter feet _|percent| percent
Cason shale....... 80 | 0 - 2%] 15.38 2.34
Fernvale limestone) 81 | 24-5 | 7.38 0.35
5 | sex | sex | 3] 14 seeeeeeedOe eee a2 | 5 - 74| 10.76 | Jcomposite
: 83 | 74-10 | 6.15 0.23
. 84 |10 -124| 6.77 | Jcomposite
seeeees 85 | 0 - 2%] 4.92 0.11
seeeeee 86 | 2%- 5 | 3.08} i composite
secon 87 | 5 - 7%] 3.69
a as | 74-10 | 4.92
6 | wex | sex] 4] 14 89 |10 -124) 3.54 0.14
. 90 |124-15 | 2.77 | \ Composite
. 91 |15 -174] 3.08
: 92 |17%-20 | 1.69 caatiee
93 |20 -22%] 1.54
. 96 |o- 2%] .77 0.11
97 | 24-5 | 2.31 | Scomposite
. 98 | 5- 7%] 3.69 0.12
7 | SER | SER | 4 | 14 99 | 7-10 | 1.69 | Scomposite
. 100 |10 -12%] 2.00 0.15
101 |124-15 | 3.84| Jcomposite
. 107 | 0 - 2%] 1.38
: 108 | 24-5 | 1.30
a | nex | ww | 15 | 14 109 | 5 - 7%] 5.20
: 110 | 74-10 | 3.60
: 111 {10 -115] 3.21
. 112 | 0 - 2%] 2.75
- 113 | 2%- 5 | 5.05
9 | swe | swe | 2] 14 : 114 | 5 - 7%] 5.20
115 | 7-10 | 4.44
116 |10 -12%] 2.14
117 | 0 - 2%] 4.90
118 | 2-5 | 5.81
119 | 5 - 7%| 3.37
120 | 74-10 | 4.28
10 | sex | swe | 2] 14 121 |10 -124| 4.28
122 |124-15 | 4.28
123 15 -17%| 5.81
: 124 |17%-20 | 3.67
125 |20 -22 | 1.84
126 | 0- 2%| 3.21
127 | 2-5 | 4.13
11 | sek | swk | 2] 14 128 | 5 - 7k) 4.28
129 | 75-10 | 3.67
130 |10 -12%] 2.60
veces edOee 131 [124-15 | 3.06



24

Thirty percent of an area inferred to contain manganese oxides in resid-
ual clays was assumed to be manganese bearing. This factor was determined by
a survey of mining operations at separate sites throughout the district, by
sampling, and from data contained in Report of Investigations 4859 (9). A
factor of 25 cubic feet per long dry ton was used in calculating tonnages (5).

Calculations of reserves of manganiferous talus and placer deposits were
based upon a factor of 10 percent of the deposit areas. This factor was
determined by surveys of mining operations.

The inferred resources were based upon data gathered in the field on more
than 580 separate tracts, using manganese cut-off grades of 4 percent for clay
deposits and 2 percent for manganiferous limestone.


MANGANESE RESOURCES OF THE BATESVILLE DISTRICT, ARKANSAS
(In Three Parts)
3. Field Investigations: July 1956 to June 1961
by

R. Bs Stroud!

ABSTRACT

This report, part 3 of a series, describes and gives results of field
investigations by the Bureau of Mines on manganese resources of the Batesville
district, Arkansas, from July 1956 through June 1961. The purpose of the
Bureau's work was to evaluate the manganese potential of the district in fur-
therance of the Government's program with respect to domestic resources of
critical and strategic minerals. The work comprised areal reconnaissance,
mapping, churn and core drilling, and sampling. In more recent years, the
investigations were confined to manganiferous limestone, which constitutes a
significant potential resource of manganiferous material. The resources of
manganiferous material in the district are inferred to be on the order of 198
million long dry tons averaging between 4 and 5 percent manganese.

INTRODUCTION

This report presents the results of field investigations of manganese
resources of the Batesville district, Ark., by the Bureau of Mines from July
1956 to June 1961. It is the third and final report of field investigations
in this district from 1949 to 1961. The first, Report of Investigations 5206
(6) »° was concerned principally with correlation of available data on mine
developments and ore production, and described surveys and investigations to
estimate reserves of various types of manganiferous material in the district.
The report covered the period 1949 through 1952. The second publication,
Report of Investigations 5411 (5), covering the period 1953 through June 1956,
described field investigations concerned mainly with testing the grade and
continuity of deposits of manganiferous limestone by core drilling and sam-
pling. Not included in this series is a report on field work done in 1940-42,
published as Report of Investigations 4859 (9). Results of Bureau of Mines

1Geologist (mineral deposits), Area IV Mineral Resource Office, Bureau of
Mines, Bartlesville, Okla.

2Underlined numbers in parentheses refer to citations in the list of
references.

Work on manuscript completed July 1963.


ii

1.

TABLES

Mines, prospects, and beneficiation plants, Batesville manganese

GUStLIiCt..ceceecseeercesevercvevvcresvves
Inferred manganiferous resources.
Data on channel samples of mangan

Logs of Bureau of Mines drill holes..........

erous materia



13

Baxter Hill (Sec. 22, T 14 N, R 6 W)

Fernvale limestone, which underlies bedded Boone chert on Baxter Hill,
was tested for manganese mineralization by core drilling and sampling (fig. 7).
The drilling, done in April to June 1957, was supplemental to previously
reported (5) results of channel sampling of outcrops of manganiferous Fernvale
on the western slopes of the hill. The purposes were to obtain information on
manganese-bearing beds behind the outcrops and to procure samples of unweath-
ered material.

Six holes, 6 to 8 inches in diameter, were churn-drilled through overly-
ing barren chert and limestone to the top of the Fernvale limestone; the
Fernvale was cored with an NX-size sawtooth bit. All drilling was done under
contract. A total of 1,0604 feet was drilled in the six holes--724 feet by
churn drilling, 267 feet by rotary noncore drilling, and 694 feet by core
drilling. Core recovery was only slightly more than 54 percent because of
vugs in the Fernvale. Manganiferous limestone was recovered from two holes.
The core was split three ways: A quarter split was stored in the Bureau of
Mines core-storage depot at Minneapolis, Minn.; a quarter split was retained
at the project office, Batesville, Ark.; and a half split and part of the
sludge was shipped to the Bureau's Rolla Metallurgy Research Center at Rolla,
Mo., for mineralogical study and chemical analyses. Logs of the holes and
analyses of the samples are given in table A-2.

Section 16 Area (S% sec. 16 and Nk sec. 21, T 14.N, R 6 W)

Churn and core drilling was done elsewhere in Independence County (fig.
8), to test the continuity and grade of deposits and to obtain samples for
mineral-dressing research on recovery of manganese. The work was done from
January through April 1958. Table A-2 gives the logs of the holes and the
analyses of the samples.

Nine holes, 6 to 8 inches in diameter, were churn drilled through over-
lying barren chert, limestone and shale, to the Fernvale limestone contact.
The Fernvale was cored with an NX-size sawtooth bit. A total of 1,475} feet
was drilled in the 9 holes--1,083% feet by churn drilling and 392 feet by
core drilling. Core recovery rate was nearly 97 percent. Manganiferous lime-
stone was recovered from five of the nine holes. Thickness of manganiferous
limestone ranged from 10 to 59 feet. The core was split three ways: A
quarter split was stored in the Bureau's core-storage depot at Minneapolis,
Minn.; a quarter split provided samples for chemical analyses; and a half
split was shipped to the Rolla Metallurgy Research Center, for mineralogical
study and mineral-dressing research on recovery of manganese. Chemical
analyses were made by a commercial laboratory.

DETAILED STUDY OF PARTICULAR MANGANIFEROUS LIMESTONE AREAS

Beginning in 1959, a detailed study was made of the manganese-bearing
limestone in Hankins Hollow, Barnes-Martin, and Cave Creek areas.


FIGURE 1. - Batesville Manganese District, Arkansas.


19

anticlines (fig. 11). The long axis of this low trends northeastward, but its
exact placement must remain questionable until additional test holes have been
drilled. As a result of erosion the fold is open at either end.

A major fault passes east to west near the center of secs. 15 and 16,
immediately north of the mapped area. The fault extends for about 9 miles,
and the beds are downthrown on the south. Maximum displacement along this
fault is about 500 feet; however, near the mapped area the displacement may
not exceed 100 feet. The latest movement apparently occurred in upper
Mississippian time and is post-mineralization. A second fault (figs. 11 and
12) trends about N 70 degrees E, 1,000 to 1,500 feet northwest of Cave Creek.
The beds are downthrown on the south; maximum displacement appears to be about
50 feet. Weathering along this fault has altered the beds of manganiferous
limestone over much of its exposed length, and in the fault zone manganese
minerals, settled into slump areas, have formed wad-type deposits. A possible
third fault (not shown on fig. 11) may trend parallel to and coincide with
Cave Creek, its trace obscured by valley fill. Measured dips and location of
the creek seem to indicate this fault, but its existence has not been proven.
Dips of the rock strata in the area are normally less than 10 degrees; how-
ever, measurable dips of 10 to 18 degrees were observed locally.

Polk Bayou and Other Areas

In the last half of 1960 and the first half of 1961 additional field
investigations, including detailed reconnaissance studies, detailed plane
table mapping, and two drilling projects, were carried out. This work was
done in the eastern part of the Batesville district in secs. 4 and 5, T 13
N, R 6 W, and in secs. 26, 32, 33, and 34, T14N, R6W.

Before plane table mapping, a detailed reconnaissance was made of the
areas. Land ties were located, mappable rock units were defined, and the
geology was noted. Tenative drill-hole sites were selected. A detailed plane
table map was made of parts of secs. 4 and 5, T 13 N, R 6 W, and secs. 32 and
33, T14N, R6W. This area was designated as the Polk Bayou area (fig. 13).

The Plattin limestone is the oldest rock in the area. It is exposed only
in the southernmost part, and it is overlain by the Fernvale limestone, which
has a maximum exposed thickness exceeding 100 feet. Manganese occurs in the
oxide and carbonate forms in the upper 50 feet of the limestone, but the man-
ganiferous zone is not consistently this thick. The St. Clair limestone is
less than 20 feet thick. Where not removed by erosion or missing because of
nondeposition, the St. Clair limestone overlies the Fernvale limestone.
Locally, the Penters chert (up to 33 feet thick) and the Chattanooga shale
(up to 9 feet thick) overlie the St. Clair limestone. Normally, however, the
Boone chert directly overlies the Fernvale limestone in the Polk Bayou area.
Here the Boone chert formation attains a maximum thickness of about 350 feet.

Within the area, the sediments have been folded into alternating struc-
tural highs and lows following the pattern of the whole Batesville district.
The outcrops of the Fernvale limestone suggests the presence of two synclinal
basins separated by a structural high. A major normal fault passes east to
west near the southern border of the mapped area (figs. 13 and 14).


Al

bi f mi
eer ae goketaitieas 6478

MANGANESE RESOURCES
OF THE BATESVILLE

DISTRICT, ARKANSAS
(In Three Parts)

3. Field Investigations:
July 1956 to June 1961

By R. B. Stroud

er eS eS
metadc38707
UNITED STATES DEPARTMENT OF THE INTERIOR

BUREAU OF MINES

1964



42

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Hole 2
Begun: January 19, 1961 Elevation above sea level: 334 feet
Completed: January 25, 1961
Churn drilled: 0-70 feet
Sampled interval: 20 - 67% feet
Depth, feet
From- Formation
0 7% Surface soil, light gray and brown chert, brown clay.
7s 20 Brown clay, light gray chert, brown chert fragments.
20 675 Manganiferous limestone.
67% 70 Pink and gray limestone.
Analysis, percent
Mn Fe P
20 25 2.22 - -
25 30 3.21 - -
30 35 4,21 - -
35 40 4.44 - -
40 45 4.90 - -
45 50 4.90 - -
50 55 3.06 - -
55 60 2.45 - -
60 67% 2.45 - -
Composite

20 67% 2.02 0.25


Where present, St. Clair limestone, Penters chert, and Chattanooga shale
overlie the Cason formation in ascending order. In the Batesville district
the St. Clair is completely eroded in many places, but locally it attains a
maximum thickness of 100 feet. Its normal thickness is less than 5 feet. It
contains sporadic concentrations of manganese minerals, although they are
seldom of any consequence.

The Boone chert, or its residual products, covers most of the surface
area of the district. The formation consists of shale, limestone, chert, and
cherty limestone. The basal St. Joe limestone member, occurring only in the
western part of the district, contains appreciable quantities of manganese.
The Boone chert is gray on fresh surface and red or brown when weathered. The
average thickness of the Boone chert formation is about 90 to 100 feet, but in
some instances the thickness exceeds 200 feet.

Tertiary and Quaternary sands and gravel are present locally in parts of
the district as thin-bedded, discontinuous, and for the most part poorly con-
solidated rocks. Locally some of the cementing material is manganese oxide in
noncommercial quantity.

Primary deposits of manganese carbonates and oxides were formed by par-
tial replacement of calcium carbonate in the upper beds of the Fernvale lime-
stone, in the Cason shale, and in the St. Joe limestone member of the Boone
formation. The manganese-rich solutions are believed to have been of hypogene
origin. Oxides, carbonates, and silicates, in that order, are the dominant
manganese minerals. Principal primary oxides are hausmannite and braunite.
Psilomelane and wad, both probably of secondary origin, form important depos-
its, and lesser amounts of manganite and pyrolusite are also present. Signif-
icant concentrations of rhodochrosite and other carbonates have wide distribu-
tion throughout unaltered manganiferous limestone. The manganese silicates
bementite and neotocite have been identified from deposits in several
localities.

Iron oxide is widely distributed, but only minor quantities of barite,
fluorite, arsenopyrite, and galena are associated with some of the manganese
deposits. Pyrite, calcite, and gypsum are sparsely distributed.

For purposes of the reports in this series, manganese deposits in the
Batesville district have been classified into four major types. In order of
abundance these are (1) manganiferous limestone; (2) manganiferous clay in
place under bedded chert; (3) manganiferous clay, talus-residual; and (4)
placer. Figure 3 is an idealized section showing modes of occurrence of the
several types of deposits.

1. Manganiferous limestone deposits. - These consist of primary minerals
of rhodochrosite, hausmannite, and braunite disseminated in limy parts of the
Cason shale formation, the upper 10 to 60 feet of Fernvale limestone, and in
the St. Joe limestone member of the Boone formation. These deposits are rela-
tively undisturbed and unaltered, protected from weathering largely by bedded
Boone chert and occasionally by St. Clair limestone, Penters chert, or
Chattanooga shale. Average manganese content of the deposits is estimated at



faults trend east-west. Probably early folding and faulting was contemporane-
ous; however, some folding was followed later by faulting. Cross fracturing
is common, and slumping associated with weathering of alternating layers of
hard and soft rock is conspicuous at mine excavations. Recent studies of
folding in the district suggest that structural lows are favorable areas for
the deposition of manganese, whereas structural highs are either barren, or
nearly so, of significant quantities of manganese minerals.

The Fernvale limestone and, to lesser extent, the Cason shale and St. Joe
limestone were the host rocks for the primary deposition of manganese minerals.
The Boone chert, which is usually more resistant, has protected much of the
underlying manganese-bearing formations from excessive weathering and effec-
tively masks many of the manganese deposits. In some places the St. Clair
limestone affords a protective cover and similarly masks the manganese
deposits.

The manganese occurs as oxide, carbonate, and silicate minerals in the
gently folded limestone and shale formations in which structural basins have
developed. Oxides also are abundant in residual clays resulting from weather-
ing of the limestone and shale. Chert beds or chert fragments, and other
detritus ranging in thickness from a few to more than 100 feet, effectively
mask most of the manganese deposits.

Based on areal reconnaissance, studies of outcrops, and limited sampling
of exposures, the resources of manganiferous material in the district are
inferred to be on the order of 198 million long dry-tons averaging between 4
and 5 percent manganese. Of these, the manganiferous Fernvale limestone and
the associated Cason shale are credited with 174 million long dry-tons, prob-
ably averaging about 4 percent manganese. This will constitute a significant
source of manganese if economical recovery processes are developed.

The oldest rock exposed in the district proper is the St. Peter sandstone.
It is overlain in ascending order by the Joachim, Plattin, and Kimmswick
limestones.

The Fernvale limestone, eroded from much of the district, is separated
from older formations by an unconformity. This limestone, the principal host
rock for manganese mineralization, is distinguishable from both older and
younger limestones by its grain size and, in places, a manganese content in
the uppermost beds. The formation usually forms prominent outcrops on the
flanks of hills and is especially conspicuous in mined areas. Normal thick-
ness of the formation ranges from 90 to 100 feet; maximum thickness is about
125 feet. The manganiferous zone ranges in thickness from less than 10 to
more than 50 feet, in places grading into barren limestone laterally.

The Cason shale is a lenticular, phosphatic formation that rests discon-
formably upon the Fernvale, except where removed by erosion. The shale pre-
sumably reaches a maximum thickness of about 12 feet in the district but
generally is less than 5 feet thick. Although it is thin, the formation is
conspicuous because of its manganese content in many places.




38

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Hole 16-7

Begun: March 19, 1958 Elevation above sea level: 640 feet
Completed: April 16, 1958

Churn Drill

Depth, feet

From- To- Formation
0 10 Surface soil, chert rubble and clay.
10 25 Broken chert and red clay.
25 90 Light gray chert with clay seams.
90 95 Dark gray chert, minor pyrite.
95 105 Light gray chert.
105 120 Dark gray chert, minor pyrite.
120 125 Dark gray limestone, minor pyrite.
125 130 Light gray limestone, minor pyrite.

Gore Drill

130 155 Pyritic limestone.
Bottom of hole.

Top of Fernvale above sea level: 520 feet

Analysis, percent

i =
129% 135 0.62 0.49
135 140 +46 37
140 145 45 +36
145 150 +31 +23

No radioactivity found.


26

APPENDIX

TABLE A-1. - Data_on channel samples of manganiferous material

Sample Location Sample| Inter- Analysis
site /Quar-|Quar-|Sec.[T N]R Wl Rock formation number] val, Mn, P,
ter ter feet percent} percent
Cason shale. aoe 35 o-5 7.07 3.83
Fernvale limestone] 36 | 5-7 | 4.61
. +-do.. 37 7-9 5.07
1 | Swe | swe] 14) 14) 8 |)? +do. 38 | 9-11 | 4.15 0.60
. 39 {11-15 | 2.17 |\ Composite
. -| 40 |15 -17 1.23
seeeeee 45 | 0 - 25] 4.77
sees 46 2b- 5 6.46 0.34
oeeeees 47 5 - 7%| 2.46 || Composite
be eeees 48 75-10 5.38
sees 49 |10 -125| 3.69
50 |12%-15 | 6.00 0.33
51 15-17%} 4.77 Composite
52 17%-20 3.54
2 | NEX | NB | 10) 14) 8 53 |20 -22%| 1.54
54 [224-25 | 1.69 0.16
55 |25 -27%| 1.54 |( Composite
56 {27-30 1.69
57 |30 -32%] 1.54
58 | 324-35 +92 0.11
59 135 -37% -77 |{ Composite
60 | 374-40 92
-| 61 | 0 - 2%] 3.38
. 62 25- 5 1.54 0.14
. 63 5 - 7%| 1.69 |( Composite
. 64 75-10 2.15
3] SW] NWR YS] a) Bee iiidosesseeee| 65 [10-12%] 4.77
. dow. «| 66 {124-15 | 2.00 0.11
eeeeeeedO.eee 67 15-174] 3.23 |( Composite
cece eee edOsseseeee 68 |17%-20 1.54
St. Joe limestone. 69 0 - 2%] 5.07
: wedowsseesee| 70 | 2k 5 | 1.85 0.03
. «| 71 | 5 - 7%| 1.54 |( Composite
. «| 72 | 7%-10 | 1.54
. «| 73 [10-124] 2.00
4] SW) We PS] ey BN er eseedosseeesee| 74 [125-15 | 1.38 copie
: eedOsseeeeee| 75 [15-175] 1.54
. 76 |17%-20 | 1.38
. «| 77 [20 -224%] 2.15 | composite
seeeeeeedOccceeeee| 78 1224-254] 1.38



43

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Hole 3
Begun: January 12, 1961 Elevation above sea level: 308 feet
Completed: January 18, 1961
Churn drilled: 0 - 80 feet
Sampled interval: 42% - 77% feet
Depth, feet
From- To- Formation
0 5 Surface soil, light gray chert, hard blue-gray chert.
5 15 Hard blue-gray chert.
15 274 Light to dark limy chert.
27% 42% Light gray, pink and white coarse-grained limestone.
42% 77 Manganiferous limestone.
175 80 White, pink and gray coarse-grained limestone.

Analysis, percent

Mn Fe
42% 47s 1.42 - -
47% 52% 4.13 - -
52% 57% 2.37 - -
575 62% 4.90 - -
62% 67% 4.44 - -
67% 72% 1.22 - -
72% 1715 299 - -

Composite
42% 17% 2.08 0.58


10.

11.

12.

25

LIST OF REFERENCES

Fine, M. M. A Mineral Dressing Study of Manganese Deposits of Batesville
(Ark.) District. BuMines Rept. of Inv. 5301, 1957, 12 pp.

Fine, M. M., and D. W. Frommer. Laboratory Recovery of Manganese Carbon-
ate From the Martin Mine, Independence County, Ark. BuMines Rept. of
Inv. 5086, 1954, 10 pp.

. Mineral Dressing Study of Manganese Ore, Cason Mine, Batesville,

Ark. BuMines Rept. of Inv. 5005, 1953, 9 pp.

Kline, H. D. Methods and Costs of Mining and Washing Manganese Ore,
Batesville District, Ark. BuMines Inf. Circ. 8095, 1962, 22 pp.

Kline, H. D., and W. F. Brown. Manganese Resources of the Batesville
District, Arkansas. Part 2 of 3 Parts. BuMines Rept. of Inv. 5411,
1958, 46 pp.

Kline, H. D., and J. P. Ryan. Manganese Resources of the Batesville
District, Ark.: Interim Report 1. BuMines Rept. of Inv. 5206, 1956,
33 pp.

Miser Hugh D. Deposits of Manganese Ore in the Batesville District,
Arkansas. U.S. Geol. Survey Bull. 734, 1922, 273 pp.

. Manganese Carbonate in the Batesville District, Arkansas. U.S.
Geol. Survey Bull. 921-A, 1941, 97 pp.

Rutledge, F. A., W. A. Tessmer, Harold B. Ewaldt, Charles R. L. Oder,
M. J. Langley, and James E. Bell. Investigation of Manganese Carbonate
and Wad Deposits in the Batesville Manganese District, Arkansas.
BuMines Rept. of Inv. 4859, 1952, 180 pp.

Shelton, S. M., M. M. Fine, and J. D. Bardell. Manganese Investigations-
Metallurgical Division. 5. Ore-Dressing Studies of Manganese Ores.
Beneficiation of Manganese Wad Ores From the Chinn Property, Batesville,
Ark. BuMines Rept. of Inv. 3614, 1942, 18 pp.

Shelton, S. M., M. M. Fine, and R. B. Fisher. Manganese Investigations-
Metallurgical Division. 17. Ore-Dressing Studies of Manganese Ores.
Concentration of Wad Ore From the Aydellote Property, Batesville, Ark.
BuMines Rept. of Inv. 3652, 1942, 17 pp.

Straczek, John A., and Douglas M. Kinney. Geologic Map of the Central
Part of the Batesville Manganese District. U.S. Geol. Survey Field
Studies Map MF-1, 1950.


mineral dressing research on upgrading low-grade ores of the district are
reported in other publications (1, 2, 3, 10, 11).

ACKNOWLEDGMENTS

The cooperation of the various landowners, lessees, and mine operators of
manganese properties in the district is gratefully acknowledged.

LOCATION AND PHYSICAL FEATURES

The area known as the Batesville manganese district is about 4 to 8 miles
wide and 24 miles long. Most of it lies in northwest Independence County, but
it also extends northward and westward for short distances into Sharp, Izard,
and Stone Counties. The communities of Pfeiffer and Hickory Valley are at the
eastern extremities of the district; Mt. Pleasant is near the northern border;
and Guion and St. James, both small villages, are near the western boundary.
Batesville, the largest town and county seat of Independence County, has a
population of nearly 6,500 and is about 2 miles south of the southern edge of
the manganese district (fig. 1).

The district is in the eastern part of the Ozark Plateau. Altitude
ranges from 250 to 800 feet. Topographically, the district consists of rela-
tively flat-topped, steep-sloped hills with many narrow valleys and ravines.
The valley floors are covered with soil and rocks from adjacent hill slopes;
the hill slopes and tops exhibit occasional rock outcrops and residual soil
and rock fragments. The district is drained principally by White River, and
by Cave Creek, Sullivan Creek, Polk Bayou, and East and West Lafferty, which
flow southward into White River.

Except for small tillable tracts, the district is covered with second
growth hard woods suitable for use as mine timber.

The Missouri Pacific Railroad passes through Batesville, and spur lines
connect with Pfeiffer in the eastern part of the district and Cushman in the
west-central part. Hard-surface roads pass through the railheads, and a net-
work of secondary gravel and dirt roads serve the mining area.

GEOLOGY AND ORE DEPOSITS (5, 7, 8, 9)

Sedimentary sandstones, shales, limestones, and cherts, ranging in age
from Ordovician to Mississippian, are the principal rocks exposed in the dis-
trict. Of lesser import are scattered outcrops of Tertiary sands and conglom-
erates. Quaternary alluvial fill is present in nearly every valley floor.
Figure 2 shows generalized sections of the rock strata.

The rock formations in the Batesville district dip gently to the south
and west, corresponding to the regional structural pattern. The dip of the
beds is interrupted, however, by gentle folds and apparently normal faults.
Anticlines, synclines, basins, and domes are well developed but are difficult
to recognize because of mechanical weathering and a heavy growth of native
grasses and trees. Folding in the district is aligned northeast, and major


16

Mapping and drilling suggested that folding and faulting influenced the
localization of manganese deposition, and that the manganese-bearing limestone
deposits are best developed in structural lows. A detailed reconnaissance
study was made of selected areas to determine the continuity of manganiferous
limestone outcrops with respect to thickness and probable lateral extent.
Evidence of structural features was noted. The areas were then mapped by
plane table methods using a telescopic alidade, table, tripod, and stadia rod.
Field mapping was on a scale of 1 inch equal to 200 feet and a contour inter-
val of 10 feet. Particular attention was given to the geologic contact of
manganiferous Fernvale limestone and overlying formations. The thickness of
the mineralized zone was measured where exposed.

Hankins Hollow Area

In the Hankins Hollow area the rock strata are folded into a relatively
shallow, elliptically shaped structural basin (fig. 9). The long axis, trend-
ing northeast, was mapped for more than 3,500 feet. Cross sections A-A',
B-B', and C-C' depict the attitude of the ore-bearing strata of the Fernvale
limestone. Maximum dips appear to be about 5 to 7 degrees. Cross-fracturing
has developed obliquely to the long axis of the fold, and erosion has resulted
in the development of the main hollow and several smaller ravines and gullies.
The thickness and linear extent of the exposures of the manganiferous beds are
dependent upon the degree of erosion and the magnitude of past mining opera-
tions. Measured thicknesses of manganese-bearing shale and limestone range
from about 20 to more than 40 feet.

Barnes-Martin Area

In the Barnes-Martin area, manganese appears to be concentrated in two
structural lows (fig. 10), one in the vicinity of the Martin mine and the
other centered at the Barnes mine. A fault just north of the Button prospect
and readily recognizable in the field is probably post-mineralization.

Another, of greater displacement but not readily discernible in the field, is
south of the Button prospect. A splinter fault branches northwest from the
latter fault. Dips of the beds range from gentle to 5 to 10 degrees, but
cross-bedding and erosional factors affect the reliability of dip measurements.
Cross fracturing, prominent in local areas, coupled with folding, controls the
erosional characteristics of the Barnes-Martin area.

Cross sections (fig. 10) show the attitude of the beds as related to
structural features. At no place in the area is the entire thickness of the
manganiferous zone well exposed; however, it is possible to infer a minimum
thickness of 10 feet.

Cave Creek Area

Although lack of bore holes, outcrops, or other serviceable criteria
north and south of the extensive manganiferous Fernvale limestone outcrops on
the sides of Cave Creek Valley make interpretation difficult, examination of
the geologic map of the area indicates that the strata have been folded to
produce an elongated structural low flanked on either side by modified


STRUCTURAL MAP — MANGANIFEROUS
‘ — FERNVALE LIMESTONE
7 SECS 15, 16, 21 and 22,TI@N, ROW

L E—E G E N OD

MANGANIFEROUS FERNVALE LIMESTONE

SCALE, FEET

sec 21 |sec 22

FIGURE 11. - Geologic Map, Cave Creek Area.


33

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Hole 16-2
Begun: January 22, 1958 Elevation above sea level: 650 feet
Completed: March 7, 1958
Churn Drill
Depth, feet
From- To- Formation
0 5 Surface soil, chert and clay.
5 40 Chert rubble and clay.
40 82 Broken chert with clay seams.
82 100 Light gray chert.
100 110 Dark gray chert.
110 117 Alternating thin beds of limestone and chert.
Gore Drill
117 119 Manganiferous Cason shale.
119 173 Manganiferous Fernvale limestone--high-grade seam
125% to 126 feet.
173 175 Barren Fernvale limestone.

Analysis, percent

P
117 119 7.84 2.01
119 125 3.23 48
125 130 6.30 -33
130 135 2.46 31
135 140 2.92 -36
140 145 5.07 +27
145 150 4.77 +23
150 155 4.92 222
155 160 4.77 -20
160 165 3.08 18
165 170 2.92 +23
170 175 1.23 17

No radioactivity found.


34

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Hole 16-3
Begun: January 27, 1958 Elevation above sea level: 618 feet
Completed: March 11, 1958
Churn Drill
Depth, feet
From- To Formation
0 10 Surface soil, chert and clay.
10 65 Light gray chert with clay seams.
65 87% Light gray chert.
87% 90 Dark gray chert.
90 105 Dark gray chert with minor limestone seams.
105 109 Barren limestone.
Gore Drill
109 110 Cason shale.
110 169 Manganiferous Fernvale limestone.
169 172 Barren Fernvale limestone.

Analysis, percent

Mn P
109 115 9.07 0.45
115 120 3.84 - 36
120 125 2.61 31
125 130 4.61 37
130 135 5.69 27
135 140 5.07 225
140 145 5.54 +28
145 150 6.46 35
150 155 3.69 +22
155 160 7.38 21
160 165 5.38 +21
165 170 2.31 19
170 172 1.38 -20

No radiactivity found.


49

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Hole 34-1
(Sec. 34, T 14 N, R 6 W)

Begun: March 21, 1961 Elevation above sea level: 475 feet
Completed: March 29, 1961

Churn drilled: 0 - 47 feet
Sampled interval: 20 - 45 feet

Depth, feet

From- To- Formation
0 6 Surface soil, brown chert and clay.
6 17% Light to dark gray limy chert.
17% 475 Light to dark gray, coarse-grained limestone, in part
manganiferous.

Analysis percent

Mn
20 25 4.44
25 30 4.59
30 35 2.92
35 40 2.14

40 45 3.59


22

To supplement the map-
ping data, churn drilling
was begun in December 1960,
and completed in March 1961.
Hole locations are shown on
figure 13. Assay results of
samples obtained during the
course of the drilling and
logs of the holes are given
in table A-2.

Eight holes, 8 to 10
inches in diameter, were
churn drilled through barren
chert or other rock forma-
tions to firm bedrock. Six-
inch-ID casing was set and
drilling continued. Samples
of manganiferous Fernvale
were taken at 2.5 foot inter-
vals. Aggregate footage
drilled was 571.0 feet.
Manganiferous limestone was
found in all holes in thick-
nesses ranging from 12.5

SCALE , MILES { feet to 50.0 feet. Average
LEGEND , Vv .
° 2 i N thickness of manganese-
are fe i i
[O} ven cote CONTOUR INTERVAL, 100 feet \ bearing limestone penetrated

in all holes was 32.9 feet.

FIGURE 15. - Bureau of Mines Drill Holes, Secs. 26 and 34, Upon completion of
T 14N, R 6W, Independence County, Ark. reconnaissance studies in

secs. 26 and 34, T14N, R 6
W, a second drilling program was begun in March and completed in April 1961.
Two holes were drilled, one each in secs. 26 and 34, the sites being based
upon geological criteria. Hole locations are shown on figure 15. Assay
results of samples obtained by churn drilling and logs of the holes are given
in table A-2.

The churn-drill hole in sec. 34, in the SWZNW%, is on the eastern flank
of a synclinal basin, the major portion of which lies in the NE% of sec. 33.
The long axis of the basin trends northeast, and the basin is flanked on the
northwest by a dome which is essentially in the central part of sec. 27. An
elongated, anticlinal fold flanks the basin on the southeast and plunges south-
west. The Fernvale is barren of manganese where it crops out on the north and
south ends of this anticline, but the limestone is manganiferous on the east-
ern limb where it begins to form a synclinal structure. The structural basin,
probably underlain by manganese-bearing limestone, exceeds 2,000 feet in
length and is about 1,500 feet at its maximum width. Estimated average thick-
ness of the overburden, consisting of soil, Boone chert, and shale, is about
50 feet.




This publication has been cataloged as follows:

Stroud, Raymond B
Manganese resources of the Batesville district, Arkansas
(in three parts). 3. Field investigations: July 1956 to June
1961. [Washington] U. S. Dept. of the Interior, Bureau of
Mines [1964]

50 p. illus. (U. S. Bureau of Mines. Report of investigations
6478)

1. Manganese ores—Arkansas. (Series)

TN23.U7 no. 6478 622.06173

U.S. Dept. of the Int. Library



TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Polk Bayou
(Sec. 32, T 14N, R 6 W)

Hole 1
Begun: December 27, 1960 Elevation above sea level: 332
Completed: January 9, 1961
Churn drilled: 0 - 75 feet
Sampled interval: 22% - 72% feet
Depth, feet
From- To- Formation
0 5 Surface soil, brown and gray chert with red clay.
5 11% Light gray chert.
115 22% Pink, gray and white coarse-grained limestone.
224 724 Manganiferous limestone.
724 75 Pink and gray limestone.
Analysis, percent
Mn Fe
22% 27% 2.07 - -
27% 32% 4.13 - -
32% 37% 4.36 - -
37% 42% 2.37 - -
42% 475 3.82 - -
47% 52% 1.99 - -
52% 57% 2.22 - -
57% 62% 2.37 - -
62% 67% 5.05 - -
67% 72% 2.14 - -

Composite
22% 72% 1.42 0.19

41

feet


39

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Hole 16-8
Begun: March 28, 1958 Elevation above sea level: 670 feet
Completed: April 17, 1958
Churn Drill
Depth, feet
From- To- Formation
0 5 Surface soil, chert and clay.
5 97 Light gray chert with clay seams.
97 100 Dark gray chert with thin limestone and clay seams.
100 105 Light gray chert.
105 120 Thin-bedded light and dark gray chert and limestone;
minor pyrite.
120 133% Light gray St. Clair limestone with minor pyrite.

Core Drill

133% 135% Pyritic limestone.
1354 136 Dark gray shale.

136 138 Pyritic limestone.

138 138% Dark gray shale.

138% 140 Pyritic limestone.

140 140-2/3 Dark gray shale.
140-2/3 150 Pyritic limestone.

150 165 Iron-stained limestone.

Bottom of hole.

Analysis, percent

in a
134 140 0.30 0.48
140 145 28 -80
145 150 30 41
150 155 31 14

No radioactivity found.


ae ee a a Tae x =
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C Z F ect UG
oe RFS ae hx 36 8 “CORN SANOTOWN Cae rT
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oe be x Shee is z 22
fa ae a ber Fl 8 ‘6 ese iB] 6
E % si
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al \
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i RL 42R sp30 f
i= re 2 eX Bray ates 4
ack: =
> halk , J
t Bed Sao
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[TM o |BsTM a— (+
_ eirren
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36 a” ; 1 36 i _
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Mabe aig aw
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Limeoae tH InsRoKd
| shoo Soe. bay J Hl
— pas
Leceno : fattonus) | ea 3
eae
X peosrecr Z cg wogrerecg] “OAD |
wm Loe wasven @ a YC ( i
a PLANT (WITH GRaviTY SEPARATOR) Ss I —_

3} IDENTIFICATION MIMBER OR LETTER SEE TABLE 1

FIGURE 4. - Mines, Prospects, and Beneficiation Plants~Batesville Manganese District, Arkansas.


POLK BAYOU AREA

Independence County, Arnensas

GEOLOGIC MAP - MANGANIFEROUS
FERNVALE LIMESTONE

Secs 485, T-13-N, R-6-W and Secs. 32 8
33, T-14-N, R-6-w

LEGEND
(-_] quaternary

E ] BOONE CHERT
BARREN FERNVALE LIMESTONE
MANGANIFEROUS LIMESTONE

PLATTIN LIMESTONE
Ome

| CHAMPLAIN MINE 2 EDGAR BAKER MINE
© BUREAU OF MINES DRILL HOLE
“INTERMITTENT STREAM

“MINING OR LOGGING ROAD

-$- FAULT TRACE

SCALE
° 200 400 600 800 Fear
Se
CONTOUR INTERVAL
50 Feet

FIGURE 13, - Geologic Map, Polk Bayou Area.


11

Shipping-grade ore was
trucked to stockpiles in load-
ing yards at railheads in
Cushman and Pfeiffer. Wash
dirt and some No. 2 ore were
trucked to washers or benefi-
ciation plants for upgrading
to produce shipping-grade ore.

D
@o
=

The typical washer plant
upgraded feed material by pass-
REI ing it through water-immersed
NS U Hy14 twin log washers to remove
00! N clay and fines, and thence
over a picking belt from which

chert nodules and other gangue
were rejected by hand.

In the more complicated

beneficiation plants, the feed
material was treated in a log

washer, and the resultant
product was sized on a revolv-
ing screen. The undersize

Lo — G6 E N OD from the screen passed to
jigs, which produced a final

WAIN
%

@— 1 Sompie site a
concentrate, and the oversize
SCALE, MILES discharged onto a picking belt
1 from which pieces of coarse
| ore were recovered by hand-
CONTOUR WTERAL, 100 Teer picking. By 1957 the use of

jigs had been discontinued.
FIGURE 5. - Channel Sample Sites, Secs.14 and 15,T Thereafter, only the log wash-

15.N, R8W, Independence County, Ark. ers and picking belts were
used to upgrade wash dirt.

No data are available on recovery of manganese contained in the feed for
plants that operated in the district.

RECONNAISSANCE OF MANGANIFEROUS AREAS

An overall field reconnaissance of the district was made to determine the
effect of post-1956 mining on previously inferred quantities of manganiferous
material.

Reconnaissance was made also to develop additional information on manga-
niferous limestones in areas previously incompletely studied in eastern Izard
and western Independence Counties (figs. 5 and 6). The work included cutting
279 linear feet of vertical 2- by 5-inch channel samples on limestone outcrops
at 15 sites. Table A-1l gives pertinent data on these samples.


MANGANESE RESOURCES
OF THE BATESVILLE
DISTRICT, ARKANSAS

(In Three Parts)

3. Field Investigations:
July 1956 to June 1961

By R. B. Stroud

x * «© *& © © 4% © » » » report of investigations 6478

UNITED STATES DEPARTMENT OF THE INTERIOR
Stewart L. Udall, Secretary

BUREAU OF MINES
Marling J. Ankeny, Director


32

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Section 16 Area
(S% sec. 16 and N} sec. 21, T 14 N, R 6 W)
Hole 16-1

Begun: January 3, 1958 Elevation above sea level: 620 feet
Completed: March 6, 1958

Churn Drill

Depth, feet

From- To- Formation
0 5 Surface soil, chert rubble and clay.
5 40 Light gray chert with clay seams.
40 60 Light to dark gray thin-bedded chert.
60 75 Dark gray chert.
75 80 Light gray chert.
80 100 Dark gray chert.
100 105 Gray chert with thin-bedded limestone.
105 116 Dark gray chert.
116 116% Cason shale.
Core Drill
116% 1175 White manganiferous limestone.
1174 121 Red manganiferous limestone.
121 165 Dark gray manganiferous limestone.
165 174 Light gray manganiferous limestone.
174 175 Barren limestone.

Analysis, percent

Mn Pp
116% 120 2.00 0.43
120 125 3.23 35
125 130 4.00 -35
130 135 2.46 +26
135 140 3.54 +29
140 145 3.84 +20
145 150 3.23 +23
150 155 3.38 -22
155 160 5.54 19
160 165 2.61 227
165 170 3.84 12
170 174 2.46 14
174 175 292 -10


20

400

300

700

300

Above Seo Level

Feet

600

500

3

L300

400

FIGURE 12. - Idealized Cross Sections, Cave Creek Area.

Feet Above Seo Level

LEGEND
BOONE CHERT, STCLAIR LIMESTONE
{EEEES] MANGANIFEROUS FERNVALE LIMESTONE
BARREN FERNVALE LIMESTONE
[EEE5g PLATTIN: LIMESTONE

SCALE
2 200 __ 400 800 Feet
See

300

Feet Above Sea Level




46

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Hole 4

Begun: January 10, 1961 Elevation above sea level: 317 feet
Completed: January 12, 1961
Churn drilled: 0 - 55 feet
Sampled interval: 27% - 47% feet

Depth, feet
From- To- Formation

0 5 Surface soil, red clay, chert fragments.

5 27% Chert fragments, red clay.

27% 324 Pink, white, light gray limestone, little manganese

oxide, and manganiferous clay.
32% 47% Manganiferous limestone.
475 55 Pink, white, brown limestone, slightly manganiferous,

little manganiferous clay.

Analysis, percent

Mn Fe P
27% 32% 1.15 - -
32% 37% 2.90 - -
37% 42% 9.03 - -
42% 47% 5.13 - -

Composite
27% 47% 2.78 0.31


28

TABLE A-1l. - Data on channel samples of manganiferous material (Con.)

Sample Location Sample] Inter- Analysis
site |Quar-|Quar-|Sec.|T N/R W Rock formation number} val, Mn, P,
ter ter feet lpercent | percent
Fernvale limestone| 132 | 0 - 2%] 5.20
. 133 | 23-5 | 4.13
134 | 5 - 7%] 3.52
. 135 | 74-10 | 3.67
12 | NER | swe | 2) 14) 8 |{ 7°" 136 |10 -125| 3.37
: 137 |124-15 | 2.60
138 |15 -17;| 1.53
. 139 |174-20 | 1.22
seeedOvseeeeee| 140 | 0 - 2%] 10,71
seveeedOveeeee.] 141 | 24- 5 | 10.40
13 | MWe | SWE] 2 | 14) 8) TTT iildowsssees-| 142 | 5-- 7%] 6.27
seseeeeedOe. 143 | 74-10 | 4.90
seceeeeedOseeeeeee| 144 | 0 - 2%| 5.36
: + do. 145 | 23-5 | 3.83
. .-do.. 146 | 5 - 7] 3.67
14 | NEX | swy ) 2 | 14) 8 -do .| 147. | 74-10 | 5.20
teeeeee edo | 148 [10-124] 7.50
seveeeeedOseceeeee| 149 [124-15 | 3.37
150 | 0- 2%] 3.21
151 | 23-5 | 4.59
. 152. | 5 - 7%] 3.37
. 153 | 7-10 | 1.38
15 swe | swe | 2 | 14) 8 154 |10 -124| 1.84
155 |124-15 | 2.30
. 156 |15 -17| 1.84
157 |174-205] 1.22



37

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Hole 16-6

Begun: February 20, 1958 Elevation above sea level: 650 feet
Completed: March 4, 1958

Churn Drill

Depth, feet

From- To- Formation
0 5 Surface soil, chert and clay.
5 15 Chert rubble and red clay.
15 87% Light gray chert with brown clay seams.
87% 125 Light gray chert with limestone seams, minor pyrite
and glauconite.
125 128% Light gray St. Clair limestone, some shale.

Core Drill

128% 129 Cason shale.
129 153 Manganiferous limestone.
153 157 Barren limestone.

Analysis, percent

Mn P
128% 135 0.46 0.42
135 140 +92 +33
140 145 1.23 231
145 150 1.54 +28
150 155 +92 .37

No radioactivity found.


23

The other churn-drill hole was drilled in the SWXNEX, sec. 26, not far
from an old hole which was drilled in 1918 in the NW%ZSE% sec. 26 (8). The
purpose of the new hole was to check the stratigraphic column and to assist
in determining the thickness, lithologic character, grade, and extent of man-
ganiferous Fernvale limestone underlying the area. Thickness and grade of the
manganiferous zone in the limestone appears to be marginal, as indicated in
table A-2; however, the lithologic character of the material recovered in the
churn-drill cuttings is similar to the cuttings of manganiferous limestone
obtained from drill holes located near the outer limits of this type of
deposit. Insufficient exploration in the area of the occurrence prevents a
good estimate of the manganese potential.

MANGANIFEROUS RESOURCES

Table 2 gives the inferred resources of the four types of manganiferous
materials. These estimates are based upon data obtained by reconnaissance,
detailed mapping, churn and core drilling, and sampling. Due allowance is
made for tonnage figures gathered under previous exploratory projects. Mining
operations and attendant production of manganese ore since 1956 have resulted
in an estimated reduction of 7 percent of inferred resources in deposits clas-
sified as types (2) and (3), as compared to the quantities given in Report
of Investigations 5411 (5).

TABLE 2. - Inferred manganiferous resources

Manganiferous | Estimated,

Type of deposit resources, percent
long dry tons | manganese
content

1. Manganiferous limestone:
(a) Fernvale limestone and Cason shale . 174,000,000 4
(b) St. Joe Limestone.......scseeeeeee . 1,000 ,000 4
2. Manganiferous clay in place under chert........ 116,000,000 19
3. Manganiferous clay, talus-residual............. 4,000,000 6
4. Placer..... . 3,000,000
Total........- eee 198,000 ,000 =
TIncludes 700,000 long dry tons of wad ore containing an average of 23 percent
manganese (9).

Estimates of manganiferous limestone tonnages and grades were based on
the length and thickness of outcrops, drill hole intersections, and the manga-
nese content of samples. In determining the size of areas believed to be
underlain by manganiferous limestone, exposures were assumed to influence
widths equal to one-half their observable lengths, except in instances where
plane table mapping and drill hole data permitted the use of more exact infor-
mation. Revisions in estimates were made for areas where barren zones were
found by post-1956 churn and core drilling. Average measured thicknesses were
used to calculate volume. A factor of 14 cubic feet per long dry ton was used
in calculating tonnages (5).


~

BOONE. CHERTSTON

CASON SHALE

"WANG ANIFEROUS
EERNVALE LIME STONEs

MANGAMFEROUS CLAY IW PLAGE] {CLAY IN PLACE
UNDER CHERT ! \onver cue RT

MANGANIFEROUS CLAY
 “racus Resiouat

FIGURE 3. - Idealized Section Showing Modes of Occurrence of Various Types of Deposits.

4 to 5 percent. No attempt has been made to mine this low-grade material, but
occasionally unusually high concentrations of manganese carbonates and oxides
have been found and mined. Hand-cobbed for shipment, this "ledge" ore has
contained as much as 50 percent manganese.

2. Manganiferous clay in place under bedded chert. - Deposits of primary
and secondary manganese oxides in lumps and wad are irregularly distributed in
residual clays formed by weathering of the Cason shale and Fernvale limestone.
The clays, overlain in most cases by shattered Boone chert, rest on an
unevenly eroded floor of limestone characterized by pits and pinnacles.
Depressions in the bedrock caused by weathering usually contain the greatest
concentrations of manganese minerals. The clay zones range in thickness from
a few to more than 60 feet and, although irregularly shaped, are persistent
over large areas. Variations of grade of the deposits range from the extremes
of nearly barren to high grade. Dominant manganese minerals are wad, primary
oxides, and secondary oxides. Deposits of this type have been a major source
of both the ferruginous- and metallurgical-grade manganese ores mined in the
district.

3. Manganiferous clay, talus-residual. - Closely related to type (2) are
deposits of manganese oxides occurring in residual clays on hillsides from
which the chert and other rock covering is eroded. A shallow overburden of
soil, clay, and chert boulders makes these deposits available for compara-
tively low-cost prospecting and mining; therefore, they have accounted for
much ore shipped from the district.

4. Placer deposits. - These represent developments from type (3) depos-
its in that they are outwash remnants of talus-residual occurrences. Water,
the main transporting agent, has removed the finer material, leaving the
coarser lumps and particles of manganese oxide mingled with soil, gravel, and
boulders. There has been little sustained production of manganese from these
deposits.


TABLE A-2. -

Begun: January 25,
Completed: February 3,

Churn drilled:

Sampled interval:

O-
37 -

Depth, feet

From-
0
5
34

37
45

37
42%

Composite
37

5
34
37

45
475

42%
475

47s

To-

45

Logs of Bureau of Mines drill holes (Con.)
Hole 5
1961 Elevation above sea level: 326 feet
1961
475 feet
47% feet

Formation

Surface soil, light to dark brown chert fragments,
brown clay.

Dark brown clay, light to dark gray chert; some
blue-gray chert.

Light gray, pink, white limestone.

Light to dark gray manganiferous limestone.

Light gray, pink and white coarse-grained limestone.

Analysis, percent

Mn Fe
0.77 - -
292 - -

3.64 0.40


47

TABLE A-2. - Logs of Bureau of Mines drill holes (Con.)

Hole 7

Begun: February 9, 1961 Elevation above sea level: 284 feet
Completed: February 14, 1961
Churn drilled: 0-45 feet
Sampled interval: 5 - 42% feet

Depth, feet
From= To- Formation

0 5 Surface soil, brown clay, light to dark gray chert.

5 42% Manganiferous limestone and shale.

42% 45 Slightly manganiferous limestone.

Analysis, percent
Mn Fe

5 10 3.98 - -

10 15 3.21 - -

15 20 2.91 - -

20 25 3.83 - -

25 30 4.28 - -

30 35 2.75 - -

35 40 2.60 - -

40 45 2.07 - -

Composite
5 42% 3.34 0.35


TABLE 1. - Mines, prospects, and

MINES AND PROSPECTS

INDEPENDENCE COUNTY

1. CASON
2. CHAMPLAIN

3. EDGAR BAKER
4. RUTHERFORD HOLLOW
5. BURGE

6 MILLER ~ RINEHART
7. GREENFIELD

8. STARK SPRING
9. CROSSER PROSPECT

10. BAXTER PROSPECT

M1, COLLINS PROSPECT

12, THOMPSON

13 CHURCHILL

14. CHINN. SPRING

1S MODLIN HOLLOW

16 J.A. REVES

1 MOYER

18 SILBERSTEIN

19, BALES

20. OUNEGAN

21. BROKAW

22. SEARCY

23. MATHENY (DIENER)

24. DAVIS HILL

25. SCHLIEPER

26. OZARK

27. CLARK

28, SEARCY

29, U.S. MANGANESE CORP.

30. SEARCY (BILL JIM)

31, HUNT HOLLOW

32, wiLocaT

33, ALBERT WILSON

34, wisooM

38. VANEMBURG

36 MARTHA THOMPSON

37. CLIMER

38 ARK. MINING @ EXP. CORP.
38. W. A. CHINN

40. SHELL-REITHER PROSPECT
41. SECTION 16

42, ADLER

43 ALER

44, WADE

45 HERMAN MILLER

46, PERRIN

47, KELLEY HILL

48 HAIGwoOD

43. J.B, THOMPSON

50. LOST FORTY

beneficiation plants--Batesville manganese district
IZARD COUNTY SHARP COUNTY
51, ST. JOHN 01. JERDEN 144. PENTERS BLUFF es. STORY
82. BALL HILL loz. SOUTHERN HILL 145. HANKINS HOLLOW 186 MATLOCK
53. ELIZA PATTERSON 103. EDDIE BAXTER 146. TM. TATE
54, GRAY (HAWKINS AREA) 104. AH. DOBSON 147, ENGLES GUT
55. BILL HAWKINS 105. JR. DOBSON 148. CUTTER STONE COUNTY
56 MC GEE tos. MT. ETNA 43, VERNA 187. LOGAN
57. LEO HAWKINS 107 J.P. BARNES 150. SKELTON 198. CAGENS CREEK
58 WEAVER 108. WOLFORD 151. PITTMAN eo. ALEX FULTS
59. CHAPEL HILL 108. NEILL 152. UNITED PHOSPHATE
60. POOL HOH. MILLER 153. CASEY PROSPECT
61. sToRY Vi MARTIN 154. CUMMINS HOLLOW
62. POOL 112, MILLER PROSPECT 158. ADLER HOLLOW
63. ADLER - SOUTHARD 113. STERRETT 156. IZARD
64, MONTGOMERY N14, JOHNSON 157. PUGH
65. ROACH HILL 115, SANDERS 158. JOHNSON HILL
66 CLARK HILL (SIS CLARK) 116. STEWART HILL 159. STANDARD
67, GALLOWAY HILL 117 CALAWAY 160. HELM
68. QUEEN HILL 118. EDMUNDSON Wel. £.0. WINKLE PLANTS WITH GRAVITY
69. BELL HILL 119 STANDARD 162. C. L. SANDERS.
70. G.W. PATTERSON 120. U.N. DOBSON 163. SAND FIELD SEPARATORS
71, MARSHALL 121. GEORGE 164. MANGANESE FIELD ‘A. MATLOCK (SHARP COUNTY)
72. R.1, PATTERSON a. SHAFT HILL 165. RUMINER ROUGH MC BRIDE (TITAN MANGANESE coRP)
TS BLAKE HILL 123 SAND FIELD 166. CARAWAY PROSPECT © FULTON
78. W.W. ALLEN 124. JAKE COLE 167. BARKSDALE 0. BUFORD PARSE
75. BUTTON 125. TOSH HILL 168. ARK. MINING @ EXP. CORP. E. ARK, MINING & EXP. CORP,
76. KINION 126. FRAZIER PROSPECT 69, CAVE HILL F. MILLER -Mc GEE
77. SHAW HILL 127 CHIGGER EYE 170. L. J. WEAVER
78 TURNER 128. HM. TATE PROSPECT 171, LEWIS. PROSPECT
73, W. J. HINSON 123. RW. REEVES PROSPECT 172, EDWARDS
80. JACKSON 130. COLE ORCHARD 173. M.E. WILSON PROSPECT LoG WASHERS
81. KIRBY 31, CLUB HOUSE 174, HJ. RAY PROSPECT 6. APEX MINING co
82. NAPOLEON HILL 182, CLUB HOUSE EXTENSION 175. MC BRIDE BROS. HOR. BAXTER
83. JOHNSON 133. MEEKER 176 MG CONNELL |. LEONARD BAXTER
84. THIRTY FOUR 134. L. BAXTER 77, BERRY FULBRIGHT J. oR. BAXTER
85. FRIDAY PROSPECT 1358. W.¢. COLLIE 178 HARRISON FULBRIGHT K. ARK. MINING 8 EXP. CORP.
86. STANDARD 136, WEAVER 173, DELBERT FULBRIGHT L. TITAN MANGANESE CORP,
87 BLUE RIDGE 137, BUTTON PROSPECT 180. WA. KING M. U.S. MANGANESE CORP.
ee. sToRY 138. FM. BARNES el. SiPES N. OTTINGER
89 BLUE RIDGE 139. KIMBROUGH 182. YOUNGER ©. ROGERS
90. ROWE FIELO 40, MARTIN 83. RAY P. KELLEY HILL
91. BENTON 14). MG BRIDE 196. SHAW @. DUNEGAN
92. POLK-SOUTHARO 42, MANGANESE CAVE
93. TURNER 143, SMITH
94. WILSON —BAXTER
95. ROSEBOROUGH
96. KIMMER
97. AYDELOTTE
98 BROOKS HILL
99 WILSON & BAXTER
100. PAGE

or