The Wallace miner. [volume] (Wallace, Idaho) 1907-current, 1913-06-19
CONTINUED from page two. }

ton IL. driven IN 40 feet deep. n
} some places the lode is wholly In sed
iinentary beds and In others Il occur
as shear zone between the sediment
and the intrusive rocks. 1t seems t
show local changes of direction, pos
sibly due to intersecting side assure
and such intersections might reason
ably be expected to contain ore bodies
Kelly.
Near the contact OF the Pritchart
formation with the everything QUARTET,
along the railway a mile east q
; Marble Creek, prospect is mapped
This location, made by Kelly Bros.
Of Avery. Is on branch vein which
shows maximum width OF IL inches
and pinches out above. II suggests q
quartz differentiation from or an end
product of an aplltc dixie. Some post
mineral shearing has occurred along
Its walls. The vein Is filed with
quartz. somewhat stained with iron
and trace of manganese oxide. and
contains pyrite and chalcopyrite
Small stringer veins. aplite bikes, and
a few shear zones occur In this for
nation and all carry little pyrite
with a few crystals of chalcopyrite.
TheriauIt.
Another prospect which gives some
promise Is that located by T. l. Their
|ault In strata believed to represent
the basal part Of ST. Regis formation
Here diabase dixie trending and dip
ping about two feetwide, has been
sheared and well mineralized The
pyrite In It Is said to carry gold values
Ito the extent Of So to $40 ton. The
gangue Is principally quartz and IRON
stained dock rock. The vein averages
about 10 inches In width and has been
Exposed by open cuts both below and
above the railroad track Close to
this lode and more or less parallel
with 1t are other smaller and less i'm
portant shear zones, which show more
or les minerlization The metamor-
phosing Influence of the granite in
trusive rocks can be detected almost
las far east as Slate Creek and shown
In the aplite bikes. quartz stringers
local areas that carry pyrite and
some chalcopyrite crystals, IRON
stained, metamorphosed-l looking shear
zones, and irregular punches of cal
cite.
The strike Of several layers here is
NJ SO per cent w. and the dip 35 per
cent SW.
Slidsrock Mountain Area.
FIoodwood Creek.
A prospect that shows valuable
amortization is at the head OF Flood
wood Creek, near the center Of sec
ton ~, 7. 43 NJ, r. E. The country
rock Is a crumpled injection geniss
composed of alternating thin layers
of dark mica schist and white pegma-
tite. The average strike is north
westerly and the dip northward at
moderate angles. The development
consists Of tunnel about thirty-five
feet long, an open cut about thirty |
feet long and ten feet deep, and some
other small open cuts that show no.
thing Of interest. The direction of
the tunnel appears to have been i'll |
calculated, for 1t crosses at an acute
a vein which appears Just beside the !
portal and, so far as observed. 1t taps
no others. This vein is about six in
ches thick, is nearly parallel to the
bedding, has q quartz gangue, and 4
contains small portion Of chal-
copyrite and probably other minerals
in particles too small for Identification
More conspicuous indications appear {
in the largest open cut. This shows 1
no well-deflned president vein but K
rather number of groupes of small
parallel to the bedding. Il
There are two principal groupes One, i
about two feet In aggregate breadth, !
IS composed of several rather poorly z
defined veins with a. maximum thick t
less of about three inches Another. n
lbout five feet from this, consists of s
wo veins each one foot to two feet c
hick, divided by thin partings All $
he veins seem more or less lenticular d
md uneven In thickness. The COM t,
position is similar to that of the vein a
t the tunnel. n
Collier quotes report that an aver p
&c sample taken across the ledge T
ielded s2.4s in gold silver. copper and n
Fad and states that picked sample sc
'as found to contain trace Of gold Is
8 ounce Of silver. and 81 per cent til
Upper. No further assays are at pre-
ent available.
Fish Hook Creek. I'm
On Fish Hook Creek. In +. As ~, al
. E.. about half mile north of ~
he point where the trail leaves the q,
ream. there Is shallow opening on lis
quartz vein two feet thick, parallel ir,
. the bedding of the country rock 90
representing the Newland forma- wi
on), which dips IS per cent N. The Fl
iartz contains rusty hollows from 81
hich pyrite or some other sulphide eli,
Is probably been leached. la,
Large Quartz outcrops. tr,
In the southern part of this area co
ere are numerous quartz veins, sh
me of which attain a thickness of tn
veral feet. Many are remarkable -
r thu purify aud u.hitau,Sc ne tha