El Paso herald. (El Paso, Tex.) 1901-1931, 1912-11-21
MINING NEWS
PATAGONIA DISTRICT HAS BOOM
FOLLOWING REGENT BIC MINE DEALS

west from the large oUtcrop, most Of
which is covered by the IvanhOe and
WinnebagO Chief. 1t is believed thai
the large and massive OUtcrOps Of
quartz porphyry and iron to the north
in the Duquesne properties extend into
the Joe Wheeler group There are
two, If not three fissure veins running
across the Joe Wheeler and Ivanhoe.
The Line Boy Mine.
Probably one of the most important
of the Joe Wheeler group, If not one OF
district, is the Line Boy, situated four
cor five miles sOutherly from the Joe
wheeler. 1t abuts on the international
line and is about 10 miles due east OF
Nogales. The 'OutcrOps are large, con-
sisting Of quartz porphyry and iron
Within the limits of this claim there
is a granite pOrphyry dixie 900 Ieet
wide. The development work consls Is
of an so foot shaft, with 20 foot drift
at the bottom, and a 80 foot tunnel
This tunnel cut a body OF ore seven
feet wide There is also 50 foot
vertical shaft which passes diagOnally
through a body of ore y feet In the
walls of the shaft for they are all IN
ore. the ores are chalcOpyrite, bOrnlte,
black oxide of copper, carrying some
mOlybdenite, carrying assays OF from
IL to "a percent copper The average
of the eight assays was 1913 percent
copper. From this shallow smart 50
tons were taken and are on the dump.
The tunnel shows that this rlch VEN
is in seven feet Of solid ore and there
are indications that the granite coun-
try rock contains disseminated copper
sulphides through large areas. This
Line Boy mine is five or SIX miles norm
from the Nogales Cananea and S p
railroad, running from NogaIes 70
Cananea. lit is just north Of Monument
No 1I3 of the international boundary
between the United states ana Mexico
and nearly a mile southwest OF the
Benton mine, which is another Dig cop
per sulphide mine in which the ore &C
ours in a dixie so feet wide. Impreg-
mated with pyrite, chalcOpyraIe ana q
little flakey- molybdenate. its contact
with the granite being marked with
sericitic zone q few feet wide.
The country rock on the, Line Boy
and the Benton is a gray granite poF-
nhvrv 500 feet in width The ore depos-
its are contained in the granite, Whlch
near the dixie is impregnated with py-
rite. chalcopyrite and. other suipnlues-
The metallic minerals are particularly
abundant along the contact OF the Two
rocks and are concentrated IN JOINT
planes and assures, locally with
little associated quartz
Rich in Molly bdenum Orc.
The nolvbdenite in the Line Boy oc-
ours also unassociated with the otnSf
sulDhides in the form Of comparatively
pure Jumps Of crystals IN pIdCes ~
eighth of an inch thick ana more lnan
a half-fnch in diameter IN sluclous
vein matter in the granite Accorolh8
to Hess the price OF mOiy D0enUh o.
diuarilV ranges between ~ anu oV ~s----1
n mound. carrying 90 percent molyp-
denum sulphide. When II is conslQ-
cred that there are only 50 tons OF TINS
class of molybdenum ores produced in
the United States, the value OF the
Line Boy in this respect can be appre-
ciated.
The Santa Rita and Patagonia noun
tains. in this district, constitute one OF
the most prominent mineral bearing
desert ranges of the southwest Begln-
ming near the transcontinental line OF
the Southern Pacific railroad, about
90 miles southeast of Tucson, AriZ-, the
range extends southwark in Pima ana
santa Cruz counties, with length OF
IS miles. to the international boundary
which crosses Il miles east OF NO
GALES The northern tWo-thlros OF the
range. extending to Sonolta creeh'
which cuts across it, is known as the
santa Rita mountains and the remain
der as the Patagonia mountains.
The range is generally rugged, ana
near the middle part OF its course cul-
inmates in old Badly at 9432 feet above
sea level. 1t is drained by the santa
Cruz river. which flows in north
westerly direction by way Of Tucson
into the ella river. This extensive DIS
trict is now becoming the scene OF the
most intense copper development IN the
southwest.