Deming graphic. (Deming, N.M.) 1903-1948, 1914-08-14
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frpn ~ hills.
According 10 C. =. Ksyss. II ~
United States gsolsgisal survey, ~
mass Of TIE Organ mountains, fFon
. point four miles north of oan A
gustine Pass to q point It least ~
miles south Of Il, b na1s ~ Of .
coarse granite rock. vhisA has .
somewhat porphyritie structure. end
is locally called monsanits. Thfoagh
this many dikes intru1s, sens bsing
aplite, others mousanits posphyEy
and others syeuite porphyry. At Ne
Mormon and Sunole mines . die b
found, granular almost hornblsnds
rock, accompanying ths veins. PALE
osoic ssdimsntary rocks form . mar
row interrupted belt on he western
base Of the range. For . eonsidsr-
able distance north Of Organ are
heavy bedded limsstones and out
crops Of beds Of black shale. To
the south the base Of the range on
the west Is limestone. The granite
mountain mass il intrusive through
the intestine country. Contact met
amorphism and silicification 10
shown along the western contact, in
which occur the greatest mineral de-
posts.
There are three types Of mineral
deposits in the Organ district: Fis-
sure veins in the intrusive granite;
replacement veins in limestone. and
contact metamorphic deposits. Most
Of the fissure veins contain silver
with galcna, zinc vlende and tetra-
hedrite; others carry gold associated
with pyri.e. The replacement veins
in limestone are probably connected
with assures, but generally follow
the qualification Of the limestone
and contain galena, wolfenite and
other forms Of lead, and also pyrites
and zinc blende. Where the oxidissd
zones occur the ores are carbonates.
The contact metamorphic deposits
carry chiefly copper and occur for
several miles along the main contact
Of quartz monxanite from the Tor
pedo mine at Organ northward. They
form irregular masses, roughly fol-
lowing the qualification, and the
primary chalcopyrite is intimately
associated with a gangue Of green
yellowish-green garnite. Oxidation
also occurs to considerable depth in
several places.
This property has had perhaps the
most spectacular history Of any in
the Organ district. Located imme-
diately at Organ postoffice and gen.
orally devoid Of surface groupings,
its early development gave the camp
an impetus it long had lacked. In
1896. Henry Ford, a prospector still
in the camp, located the ground as a
possible silver-lead prospect. His To-
cation and subsequent annual as
sessment work were done in an adit-
tunnel driven in an embankment
composed of boulders and sand. at
the extreme north end Of the claim.
A body Of iron gossan carrying some
lead and silver was uncovered and
this subsequently gave place to
green ore" the silicate Of copper,
Thereafter the mine was developed
and operated, at first by R. Y. An
lerson and Bill Hayden. and then
others. for short periods at intervals
over several years until the panic
If 1907, since which time. at the will
Il the owner, it has remained mac
i've. The property has a production
record. variously estimated at from
800. 900 to 100000 gross. the ore
having been shipped to smelters in
q Paso, Texas, and Torreon. Mex
co. Stopping was carried on to the
,35- foot level and the ore proven
o 307 feet. the deepest point reached
~ development.
The mine is notable for its depos-
Is of chalcocite, pseumomorphic
lfter galena and masses Of cryso-
,olla, the latter occurring up to 25
'eet in width. Discovery was quite
~ accident, the surface Of the claims
icing covered by a loose material Of
! broad debris fan" from the range
lbove, and characterized by an al
most total lack Of groupings Of any
nature above the known ore bodies.
Quartz monzanite forms the foot
vail Of the deposit. between which |
ind the unaltered blue limestone
'orming the hanging, there occurs q
aver Of silicified limestone in which
he ore bodies appear to be contain
d. The upper ore bodies consist Of
arge masses Of crysocolla ore, av-
raging 10 per cent copper and but
title silver, between the limestone
nd the granite. The gangue il q
oft kaolinized and brecciated ma