The Salt Lake herald. [volume] (Salt Lake City [Utah]) 1870-1909, 1896-04-01
THE FOUR ACES.
Report of Prof. VI. E. Jones on His
PrOising Tintic Property.

Proising Tfntic Property.
| The Four Aces mine is new star in
| the Silver City constellation, and before
| long, from all Indications, it promises
! to be one of the bright and particular
| twinklers that we read about in good
| books, especially as the company is
united in its determination to develop
/ this Tintic property in most thorough
and systematic manner, and with this
end in view has ordered a new gasoline
hoist; and TO acquaint itself with the
| formation and character of the coun-
/ try and the mine, engaged Professor
! NJ. Z. Jones of this city to make an
examination of the same, and his re-
port to the company, which was sat
/ isfactory in every respect, we give be-
I low, as follows:
Four Aces Mining Company:
Gentlemen-Below L submit my re-
port on the Four Aces:
The Formation-The country rock is
an eruptive rock, which is nearest to
| trachyte, but often is a true granite.
1t forms a hill about 1000 feet high,
running from near Silver City to the
crest OF the ridge which extends north
! of the Swansea mine to the limestone
above the Ajax. This hill is split by
| fissure, which begins on the edge of
the valley al the Four Aces and runs
along the edge and over a little spur
nearly north and south, cropping out
at several places for over half a mile.
| This fissure is filled with later erup-
tive rock called porphyry, which car
ries the mineral. The assure or vein
is never less than two feet wide and
often is very much wider; it dips to the
west. but is within 10 degrees of per-
pendicular. About the middle of the
claim is a large outcrop of porphyry
some fifty or more feet wide, with
vein of iron-stained rock where a shaft
has been sunk to small depth on it,
and which may be connected with the
| Swansea vein by a cross fissure, and
probably is. also connected with your
main vein. I should look for ore in
this vein.
THE VEIN.
The vein will run from two to four
feet wide, is filed with porphyry be-
tween trachyte walls. is nearly per-
pendicular, runs nearly north and
south. and carries large quantities of
iron in the form of oxide, some lime
spar, a very little baryta and silica,
and wherever there is ore there are
streaks of carbonate of lead going high
in silver. The ore makes in the vein
in bodies of varying size from q frac-
ton of an inch to several feet wide.
You have just shipped a carload of ore
from one such body near the shaft.
In the drift now going north you are
approa ching what viii probably be the
largest ore body yet struck, and you
are only few feet away from ii now.
The formation improves as the drift
goes north. This is marked by a
heavy outcrop of iron on the surface.
There is considerable ore in the vein
near the shaft, but it is not wise to
take it out. as ii is better to go on fur
Their and then stope out away from the
shaft. The vein is continuous from
the surface down and will continue TO
great depth because it is a true assure.
The ore is now ozidized and carries an
excess of iron. which makes it
valuable smelling ore. At
depth of perhaps $50 to 200 feet
more you will strike pyrites and
then the vein will be uniform from
that on 70 the end. At about $50 to
200 feet more you will strike water in
small quantities. Your vein has the
same character as the Swansea, which
is near ii, as to the ore bodies and
quality of ore, but your vein at pres
ent carries more spar.
THE WORK DONE.
The work done on your claims con-
sists of a nearly perpendicular winze
or shaft on the vein provided with a
good ladder way and bucket slide and
partly timbered. nearly 200 feet deep
with two drifts on each side, one near
the bottom and one about half way
down. These drifts have none of them
been driven more than fifty feet in.
but they show ore all the way and
continuous vein. They are not In far