Eureka daily sentinel. [volume] (Eureka, Nev.) 1871-1887, 1877-08-17
rmE RESCUE MINING PROPERTY.
0eoIewicaI De.cription ofsnverado

Geological Description ofstlverado
Silverado mountain Is a spur of the
Diamond range that projects south
easterly from the main range, and Is
about five miles in length and over
n thousand feet in height above the
adjoining valley. This lateral ridge or
spur OF the mountain has been formed
by a folding of the strata into a sharp
anticlinal curve the apex of which has
been removed by subsequent denuda-
ton, thus leaving the edges Of the
strata OF beds exposed Il view. The
strike or curse Of the beds is about
south southeast and th-northwest.
The dip is nearly vertical. The south.
west base of the ridge Is made up
mainly Of auartzite. The central por-
ton Is composed of a dark gray sill
cious limestone. A great outflow of
porphyry and basaltic lava are met
with west and north Of the Silverado
spur. The original beds Of limestone
have been altered and metamorphosed,
and I'm places underlie and come i'm
contact with the Plutonian rocks.
thtOf i>tNt wiz ulu DOt take a
comprehensive view of the geological
situstion, would dispute about the for
nation, as did the knights i'm the fable
as to whether the shield was gold or
silver.
The principal metal bearing zone in
Silverado mountain Is that portion of
the limestone lying cas- Of the quartz
lite, extending to the summit of the
mountain, and forming a belt nearly
! 200 feet in width.
RESCUE MINE.
The Rescue mine is situated in the
central portion of this metal bearing
zone of limestone, and near its line OF
contact with the underlying quartzite.
The mine is 1 500 feet i'm length and 600
feet in width, containing 20 acres OF
surface ground. 1t was located in No
vember, 1878, and is covered by a
United States patent. The mine has
been opened by AN inclined shaft, lev
els aud wines, to a depth of 265 feet,
In a systematic and thorough tanner
About 5000 tons OF ore have been ex-
tracted from the mine, 1000 tons OF
which have been sold, from time to-
time, from which was realized the sum
of S265. 900. The balance was classed
as second rate, and assayed from $50
To $40 per ton. The ores that abound
IN the mine are entirely fres from re.
bellious mineral, melt easily and are
much sought after at the furnaces on
account 81 their superior fuxing quail
ties. The first class ores, OF which
there IL a large quantity in sight, assay
from $3.50 to 500 per ton. The forma
finn nj tho s.ntnfru rnfk ia nf a IN 4 n y
BILE nature for prospecting, requiring
little timbering. The works are of a
substantial character, and we'll adapted
for their various uses. A double
geared patent hosting within il erected
over the main shaft, and is of SUI ~fficient
capacity To work the mine to a depth
OF 600 feet. Since Superintendent
Shoenbar's return from New York he
has had q force of men employed in
cleaning out the old levels and putting
the mine in shape for developing. A
contract will be let on Saturday next
for carrying the main shaft a further
depth Of 200 feet, and on It's completion
two new levels will he driven. A force
OF men will also soon be put TO work
extracting and stopping lou the ore from
the upper levels. Mr.. Shoenbar has
not az vet decided whether he will
build a furnace this season. Ii Is proba-
ble that the high grade ore will he
selected and shipped, and the balance
held la reserve Tor future reduction. |
Taking all in all the Rescue is one OF
the best mining properties in Eureka
District, and under the present Super
intendent's able management, is des-
tined to take rank among our fore
most mines.