El Paso herald. (El Paso, Tex.) 1901-1931, 1910-02-08
BOSTON MEN To WORK MANY CLAIMS
IN THE STEEPLE ROCK DISTRICT

! now I have started tunnel within 800
feet of the mill and will drift from
| that end north in the vein on pay ore
| instead of operating the old work
| shaft 1000 feet distant. thus saving a
cost of mining hosting and hauling that
distance at cost of 81 a ton.
Another thing. in the past great ex-
pense has been incurred in the vain
effort to treat the ores of that district
by amalgamatiOp and concentrating, all
Of which have been dismal failures Ny
experiments carefully conducted during
/ the past two months have demonstrated
that the ores can be successfully treated
/ only by the latest cyanide methods And
herein lies the secret OF the future sue
cess of the Steeple Rock district.
Geology of Mines.
'The main vein lies on the east side
of a great dyke composed Of feldspar
and fluorspar, running through andesite
pOrphyry. The vein is composed of q
dark blue notified quartz. resembling
dacite. which was crystalized from the
andesite. On the west side OF the same
dyke is = parallel vein, on the opposite
side of the dyke from the other vein.
which has been cut six feet across but
the other wall has not yet been reached.
This vein averages $500 gold and sill
yer a ton. About 1400 feet east of these
veins is another parallel vein and dyke
system to which another vein con-
verges northeast to il. The old CARLYLE
holdings cover part OF these.
ITO the west of the vein systems. the
country rock is andesite with intrusive
dykes from 200 TO 400 feet wide. COM
posed of granular quartzite and quartz
porphyry, bisecting and dissecting it.
To the east the mountains are very. pre-
ciDitous. rising abruptly 1900 to 1000
feet, with large box canyons in which
are old cliff dwellings, presenting a
picturesque landscape. This formation
is malpais and altered schists and cam
brian GRANTEES with 2 Gaping 1000 TO
$4,000 feet of Weber quantities..
FavOrs Cyanide Plant.
Between these the two ridges de
scribed is a basin, the floor of which is
andesite and rhyolite, forming crystal
inc varieties. with many extinct flu
meroles and hot springs or geysers. 1t is
in this class of forma ton that the gold
silver values are found in the Steeple
Rock country. and in >this respect it
strongly resembles that of Cripple
Creek. Colo. In fact I am confident
that the genesis of these ore deposits
may be traced to these fumeToles,
through which the metallic contents
were carried in solution by thermal
waters and deposited in the veins. am
very familiar with the geology of Grip
pie Creek and find the conditions Of
Steeple Rock similar.
Our company will, If my suggestions
are followed. readjust the present 100
ton mill from its present plan to a
cyaniding plant. An electric plant will
be installed at Sheldon. railroad sta
ton only II miles distant. TO transmit
power TO the mines. Texas oil will
be used as the most economic fuel. TO be
supplied from Ell Paso houses
To Buy Machinery Here
1.-The plan to be inaugurated for
treatment OF ore is to crush the rock to
about 20-mesh in cyanide solution and
then il will run into tube mills for fine
regripding TO $50 mesh fineneSs, thence
into air agitation tanks of the tall mar
row type. 20 feet high and six feet wide
and hooded admitting the air at the
bottom through conical bottom draw
ing the oxygen and hydro-cynic gasses
from the top, forcing them in at the
bottom again, retaining the same gases
and enriching them by ozone as they
are drawn from the top and pass 10 the
bottom for re-injectiOn. We are fig
uring on saving 80 percent of the values
in six to ten hours treatment instead
of the slow old methods which took
weeks. The new method necessitates
much less expensive plant.
Nearly all our machinery and sup
plies will be purchased in Ell Paso which
carries everything needed by mine oper-
ators. and our company believes in
patronizing home institutions. We will