Eureka daily sentinel. [volume] (Eureka, Nev.) 1871-1887, 1879-09-26

Some Reference to the Mines of the
idaho Consolidated.

Whatever fact lifts the mind out Of the
present moment ~elevates ii. We traverse q
past which is only less than infinite. The
lamp Of law which science is about to fash
on bygone creations must be lighted from
the present time.
We read the history Of creation from the
rocks. There were two great agencies in
the creative processes that have made a fit
The crust of our globe is made Of two
classes of rocks, ont Of these is born Of fire
or igneous, and the other was formed un-
der water or sedimentary. First came the
age of minerals with no life anywhere.
Then tie flower-like radiates half plant.
half animal IN appearance. Then the
shells spreading far and wide in minute or
large forms, making in places the very
foundation of the globe by limestone and
fossilliferous rocks. The geological evil
dence of the fossils found in tie limestone
that encase Eureka's great ~ore-channel is
OF the Silurian and Devonian periods, a
very early period of the strafified rocks.
Other geological testimony shows that
tuCoc oti did Ntlt lIttu ITOli tbtiT suDna-
rine position at the close of the Triassic
period; raised from a silurian sea to their
present elevation. From a careful study
of the Mesozoic rocks of Nevada (by the
geological survey Of the fortieth parallel,
we learn that the Triassic rocks consist of
alterations of limestones and quartzites,
which form a continuous section Of many
miles through the Eureka and Secret Can
yon Mining Districts. The Jurassic rocks
OF those districts are shales. And such,
upon a careful examination, we find the
great ore channel in our midst, bounded
by quarzlte, shale and limestone. From
these facts we learn the Eureka lode to be
much older than the Comstock and less
subject to heat.
h Holly mine, the property of the
Idaho G.. s. M. Co., is situated about
one and a half miles northwest from Eu-
reka. On entering the mine through an
inclined shaft, As feet in depth, the hang
ing wall formed of shale is exposed through
the workings, dipping at an angle of As
degrees. Many 0 N Of ore have been taken
out of this incline. The second level is 80
feet from the surface, where a large mass
OF ore is found, consisting of gray carbon
mates, averaging S138 65 in gold and silver
With IS per cent. lead. The size of this
pAO DOus Ao uuhHOWHs lHcTt IL u QflIL
running from this level, E. Sc, 100 feet
in length, out Of which hundreds of tons Of
ore were taken. The main incline has an
angle of 40 degrees, is 200 hundred feet
deep, and yielded several thousand tons Of
ore. Here are to be seen rich gray car
DONATES, intermixed with rich %sulphurets.
This body Of ore lays under the shale. No
foot wall is in sight for two hundred feet.
The main shaft is 100 feet in depth, in
two compartments, four feet in the clear.
A double-geared within is constructed over
it. In the short Wine. about Sc feet south
west from the main shaft, there is a large
body of galenaite ore, carrying gold and
silver, averaging $50 to the ton. As depth
progresses, this ore-body assumes large di-
mansions. The workings in shafts, drifts,
stopings, crosscuttings, etc., aggregate
more than 1900 feet. This property is
situated on the great o~re-channel, and un-
der the careful workings of the present
manager, will turn out to be one Of the
foremost mines Of Eureka county.
The Idaho North contains 500 feet, sit
uated northwest Of the Holly mine.
The Eureka has / 900 feet, and lays west
Of the Idaho North.
The Venture property, covering an area
Of $500 feet, is situated a little west Of
north, butting against the end lines of the
Eureka, and on the strike of the great ore
channel.