The Salt Lake tribune. [volume] (Salt Lake City, Utah) 1890-current, 1906-07-16
-FOUR ORE BODIES
IN DAILY WEST
Description Is Given of Mineral
Resources of Park City
Mine.
TWO MAIN CLASSES
OF ORE IN MINE
DaIy Fissure Is Extension OF
Ontario Vein and Runs
Parallel.

In n recent article regarding the
DAILY West mine, the Engineering and
! Mining Journal had an interesting ac-
| count of the ore bodies Of that great
| Park City diyidend-payer. the most OF
| which Is here given;
1.-The output of the DAILY West comes
| from four distinct ore bodies-the Daily
| nssure, the Back vein, the contact de-
posits, and the 01-02-o4 assure. which
extends from the contact deposit and
carries ore down into the quartZite.
There are two main classes OF ore In
tho mine The Daily flssure carries
true sulphide deposit OF galena with
some Zinc, In the ore bodies above the
900-foot level-the contact deposits and
the 01-O2-04 flssures-the ores are oar
Donates, carrying some unaltered ga
lena and tetrahedrite. good part OF
the ores In the levels above the 900,
both in the Daily West and in the ad-
Joining Quincy. is flrst-class ore and Is
not concentrated. while in the Daily fis-
sure very little first-class ore is found.
and the bulk of 1t Is milled
THE DAILY flssure is one OF the main
fractures Of the Park City district and
is an extension OF the main Ontario MS
sure system, 1t Is parallel with the
Ontario fissure and lies about 500 feet
south of the Ontario, overlapping 1t TO
some extent. Its strike Is q few de-
grees north of east and 1t cuts sharp
ly across the strata. Along It there has
been a vertical displacement OF at least
700 feet. so that, owing to the dropping
of the hanging block, the hanging wall
OF the hssure In the DAILY West mine
Is limestone and the footwall Is quartz
ite. The dip of the Daily assure In
Daily West ground is about 65 degrees
TO the north In the upper workings, but
In depth II flattens TO 81 degrees. The
fault fracture Is a strong one, and
along It there has been a rich min
eralization.
Often Follows Hanging Wall.
This extends over width OF ten to
thirty feet and occurs In a series OF
shoots along the vein In the brecciated
quartzite velr-flling These shoots are
vertical or have q slight pitch toward
the west. The ore occurs In seams a
foot or 50 wide; at some places there
IS one hand Of ore, at others two Some
times the ore follows the hanging wall,
at others the foot, and sometimes there
is a band OF ore along poth the hang
Ing and the foot wall On the 1900
foot level Of the DAILY flssure there Is
n shoot Of ore 900 to 1000 feet long. A
barren bar OF ground about 200 feet
long separates this shoot from another
one which Is at least 200 feet long and
the drift is still in ore. No prospecting
has been done upon the DAILY fissuro
abovo the 1200-foot level.
THE contact ore bodies and also the
01-02-04 flssure are all In the foot wall
OF the Daily flssure, The contact de-
posIt has t northeast-southwest trend
and dips about 20 degrees to the north
west 1t Is said to average eight feet
thick. The ore bodies occur at the
intersection Of northeast and southwest
assures with the quartzite-lime con-
tact They extend over into the Quincy
(,,,L inl, o{ya l@o14
to the Daily WesO. An ore body along
the contact Is formed at its intersec-
tion by the 01-02-04 fssure. The 0l-02-04
is also a portheast-southwest flssure
and dips about 10 degrees to the north
west, while the roll assure dips about
10 degrees to the southeast. This roll
assure lies to the northeast of the
N1-02-04 flssure.
THE 01-02-04 fssure is strongly min
eralized and produces o. lot OF good ore.
This varies from ten TO twenty feet
thick and is fairly continuous along the
strike of the vein. The 01-02 part OF
the assure Is the vertical part, while
the OF part Is the fat bed part, which
appears to follow a bedding In tho
quartzite about sixty feet below the
contact The Back vein averages about
four feet wide and dips about 70 de-
grees 70 the south. 1t also has a north
east trend. Two shoots OF ore have
been opened up along this Back vein,
No development has been done upon
the roll flssure' to see whether 1t also
is mineralized where It cuts through
the quartzites. Considerable prospect
ing is being done on the 90O-foot level
upon several northeast-southwest fls-
sures.
"Thc mine Is drained by two tun-
nels; the upper one, which cuts the
DAILY West shaft at the 1200-foot level,
Ia about two and half miles long.
The other. the Ontario drain tunnel,
Will be about four miles long when II
reaches the DAILY West shaft, at q depth
of 200 feet. The lower workings Of the
Daily West are drained entirely by this
tunnel. for the water seeps through
the rock to II. but to make the lower
portion of the flssure available 1t is
necessary TO extend the tunnel into
Daily West ground. This was being
done when the cave occurred last
March. All the DAILY West ore bodies
are worked through one shaft. This
now Is 1880 feet deep. but 1t will be
sunk deeper as soon as the Ontario
drain tunnel is In good shape again.
II Is sunk in the foot wall, and is a
vertical three-compartment shaft"