The Goldfield news. [volume] (Goldfield, Nev.) 1904-1911, 1905-05-26

/ ptsI iIiillCS HI VIC Ut, WIG autf tLilt.
The origin of the ore deposits was I'M
doubtedly deep seated. The hot waters
came up the assures from below carry
ing various minerals in solution, among
them gold, a little silver, copper and
some iron. As the waters rose nearer
the ancient surface, and consequently
both the pressure and heat of the sur
rounding rocks decreased, the solutions
began cooling and depositing their vari-
Gus minerals the most extensive being
quartz which thus silicified the sides or
walls Of the assures, cracks and crevices
through which the waters circulated and
in which the veins are deposited.
The question as to whether the de-
posits show evidence of secondary as
well as primary naturalization, whether
the adjacent country rock originally con-
tanned minerals from which the solu-
teaching, whether the silicified lodges
are properly classified as dykes or should
be designated by some other technical
term, cannot be discussed in an article
of this nature which is intended solely
for the average newspaper reader. The
main questions are whether the Gold
field district presents good evidence Of
permanencv as a mining region, whether
the high values in the veins are merely
superficial or whether they can be ex-
pected at greater depths than thus far
attained 300 feet from the surface is the
maximum as yeti, and whether the
veins themselves are merely superficiate
cracks in the nature Of gashes, or
whether they are true assures of con-
siderable extent both horizontally and
downwards. # the evidence shows that
the answers to these questions are all
favorable then the Goldfield district
must take its place among the best gold
producing regions IN the United States,
and rank high among all those known
in the world today.
The conclusions reached by the writer
are as follows:
First-The region so far explored, but
only partly SO, includes Sc square miles
of mineralized territory Of which only
one-fourth has been developed suilic-
iently to open payable mines, but the
shallow explorations and surface indi-
cations in the remaining threc-fourths
all point to many more mines yet to be
discovered therein, also to the fact that
the extent of the region will be much
greater than at present when further
prospecting and judicious exploration is
carried forward.
Second-The veins are numerous, deep
seated and defined as well as Some other
rich gold producing regions. They are
not 50 well defined as some of the noted
gold regions OF much lower average ore
values, e.. g., those along the Mother lode
in California, the Bohemia district IN
| Oregon, Gilpin and Clear Greek coun-
ties, Colorado, etc, but are more nearly
analogous to some Of the veins in Grip
pie Creek, Colorado, KalgoOrlie, West
Australia, and others in which the main
ore channel Is very narrowsand must be
watched closely during underground de-
~velopment and in which the values are
mainly disseminated in a number Of
marrow parallel cracks, seams, and lam
nations rather than in one large central
we'll defined single crevice.
Third-The ore bodies in these veins
are shor: bu. numerous and exceedingly
rich. The only region in the United
States comparable with this in average
value Of The ore 10 Cripple Creek, Colo
RADIO, bat The frst year of Goldtield's
existence IL which reliable estimates
show a production Of So, OOO, 600 in smelt-
ing ore and 5000, 900 in milling ore,
(smeiting ore being reckoned as that
above 800 per Ton in gold value and the
milling ore al! that below this grade)
is immensely beyond that of Cripple
Cheek which showed only $2OO, 900 pro-
duction for It's first year. 1t is only iair
To state, however, that Cripple Creek
| mac MUCH lnidStI0u4t puUAC Cpiii!OI
to overcome IL It's early history, while
the public was somewhat prepared for
Goldfeld through the extraordinary re-
suits Of developments in Tonopah Tor
two years previously, this district being
only 23 miles north OF Goldtield.
Fourth-While the ore is isse:alnated
through numerous cracks, cross-siIps
and assures in the uppermost or oxl-
died portions OF the veins, and is thas
difficult to follow systematically, yet at
a depth OF 40 feet where the oxidized
zone ends and the live ore is found the
veins become much better defined and
regular with L If not both walls
clearly apparent and the values in the
live or sulphide ore zone are nearly as
great as the average % the oxidized zone
above.
Fifth-The character of the change IL
l{ha oro n G the zone is pxDlOrpI