The oasis. [volume], September 29, 1906, Image 1

About The oasis. [volume] (Arizola, Ariz.) 1893-1920

Image provided by: Arizona State Library, Archives and Public Records; Phoenix, AZ

                
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IN ARIZONA
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NOfiAIJ-S. ARIZONA, SATUIMMY, SKI'TKMliM
Vol VII, Nn, 2 1.
f J.N
.J? " ' flN
MINES OF THE
SANTA RITAS
PROPERTIES THAT WILL BRING WEALTH
ANO POPULATION TO SANTA
CRUI COUNTY.
Development Work Being Done by th
Mantfield Mining Company on
Its Holdings in Tyndall
Mining District,
While reader. of Tjh:Oai- have
I wen made quite familiar with th?
west slope of the Santa Itita moun
tains, through descriptions of t lie
Tyndall mining district, wherein
:ire the Wandering Jew, Joplin,
Alto, Apache Chief, Salero, and
other mines which have received in
these columns extended mention
from time to time, they have had
inly casual mention of the Wright
son district, lying upon the south
llank of the same lofty mountain
range, one the most conspicuous
landmarks! in Santa Cruz county,
in which ate located a large num
Iwr of very promising mining prop
erties, all receiving now extensive
exploration, and all destined to be
come great and profitable produc
ers in the near future. The dis
trict includes the Mansfield, Hap
py Jack, Presidential, Anacoida
Arizona and other properties or
groups of mines that have had oc
casional mention in these columns,
but never any extended descrip-
i
J ' "-il.:it ion th it it m destined to he
i come ore of the greatest -fat of
j mineral production in the territory
of Arri.ona. 1 he
GF.OJ.OOIC Tl!l (Tt l'K
indicates unerringly that it is a
region of permanent vein.1 and
ledges that are wide and well min
erulized, going to great depth and
very rich, doubtless, below the water
level. It is a region of trachytes, di
oritc?,, quartzites, quartz-porphyry
and some porphyry. The ledges are
strong and well defined, twenty to
one hundred feet in width, extend
ing across the country for miles,
easily traced everywhere and in
daces their cropping standing
boldly above the surface twenty to
forty feet in height, several hun
dred feet in length, conspicuous ob
jects in a series of very attractive
landscapes. Nearly ail t tie large
ledges are accompanied by a dior
ite casing on their hanging walls,
between the ledges and the country
rock, and on the footwall between
the ledge and the quartz-porphyry
a similar casing of iron and man
ganese. Experience has proved
that vein casings such as those
come from great depths, and that
in following them down the miner
finds the ledges unbroken and richly
mineralized. Lying between the
great ledges, which are several
hundred feet apart are many later
al veins and stringers, all miner
alized, and apt to develop rich ore
bodies when depth is attained.
Those familiar with both declare
this very simitar to the formation
at Butte, Montana. The
CHARACTER OF THE ORES.
as developed where work has been
done, is that they are rich in cop
per and silver, with soire gold. In
8
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Sue , . 1
A
I-
I'-:
Is i
. A. C. SWEET LEDGE, ERODED IN CANYON.
tion. Recently ' the writer has
made an extended and careful ex
amination of some of the, proper
ties in the Wrightson district, par
ticularly those of the Mansfield
Mining and Smelting Company,
..tnd incidentally of the entire dis
trict, and now pronounces without
places they are very rich in cop
per and silver, paving handsomely
to ship, while accompanying the
richer deposits will be found large
bodies of rock which will yield bet
ter returns by concentration upon
the ground. They are principally
sulphides occurring in masses in the
op.
of
hipping quality, find in ' cropping of the l.'dve nlnnd out in
small frngmeiif dhpered among j bold relief above the surface, wluh
the quart! in the ores that will pay j at one place the wnshing of a gulch
to work by concentration. One! has eroded the hanging wall and
great convenience in the operation vein ending to a depth of forty or
of the properties, whether in hand- fifty feet, 200 to 300 feet in length,
ling by shipment or smelting the j and there the ledge fdands in front,
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A. C. SWEET LEDGE, ERODED IN CANYON.
richest ores, or in concentrating
and shipping the concentrates, or
smelting them on the ground, there
are both fuel and water in great
abundance. The slopes of the hills
and mountains have considerable
growth of scrub oak timber, and
higher in the mountains are both
oak and pine, while the gulches run
with water many months in the
year, and water can be had in any
quantity at all times by sinking to
the bed rock. When depth is at
tained the water pumped from the
mines will furnish unfailing sup
plies. The properties of the
MANSFIELD COMPANY
are in the most eligible portion of
the district, and embrace seven
teen full mining claims, each 1500
xGOO feet, aggregating 340 acres.
They are grouped in such a way
that they are practically contigu
ous, the longest extension includ
ing five claims, or 7,500 feet, and
in one place the width including
five claims also, or 3,000 feet.
Through each of the latter sections
of the group there runs one of the
broad ledses described hereinbe
fore, all being in the same general
course (about 20 degrees S. of W.)
a,,Dd all pitching about 80 degrees
S. The longest of the lateral sec
tions of the group, including five
claims (7,500 feet) embraces the
Hornet, A. C. Sweet, Richmond,
Mansfield No. 1, Mansfield Ko. 2,
mining claims. One of the largest
and most strongly defined of the
ledges runs through the entire
length of the five claims, and is
traced on westward across the hills
an equal distance through an equal
number of claims belonging to the
Happy Jack group, and even be
yond that ground. In several
places on the A. C. Sweet claim the
! e l ii ..
ui uie uust'ivci iiKt ine witii ui ;
house. Assays taken from the
ledge anywhere along that expos
ure show values, and at the foot of
the bluff, from an eight foot hole,
there were taken several tons of
ore which were shipped to El Paso
for treatment, and yielded 14
copper, 50 oz. silver, and $3 gold
per ton, an aggregate value of about
$85 per ton. Below the water lev
el such ores will be
FOUND IN LARGE liODIES,
extending the entire width of the
ledge. North of the Sweet ledge
(that being the designation of the
great ledge described) is another
similar, strongly marked ledge,
standing above the surface, in plac
es, which is named the New Era
ledge. Upon that the Mansfield
Company have two claims, the Old
Nick and the Black Cap. which
have shown good ores, with small
development. Upon the Black Cap
there has been found a tellurium
ore (telluride of mercury) which is
very significant of itself. Between
the two claims last noted and
Mansfield No. 1 claim, is a wedge
shaped claim named the Trinidad,
through which runs a broad ledge,
which shows good ore wherever
broken into. Lying alongside the
Black Cap and Old Nick, on the
north, arc the Sulphide and Hobo
claims through which runs, anoth
er large ledge with a pay streak
four feet in width, showing good
sulphide ores, from which one of
the claims is named. Adjacent to
and south of the Mansfield No." 1
claim, the Richmond and A. C.
Sweet claims are three others,
named the Hillside, Timberline
and Chalcocite. In those three
claims the formation seems a con
tact between a basaltic rock and