Santa Fe new Mexican. [volume] (Santa Fe, N.M.) 1898-1951, 1900-08-17
AN EXPERT OPINION
H. V. Hall, a Geologist, Speaks Of
the Geological Formation Of
Santa Fe Canon.
A PROMISE OF GOOD MINES
But 1t Will Take Money to Develop
Them-A Shaft Should be Sunk
400 Feeet on the Great
Republic.

The Great Republic Mining Com
pany's group of properties near Monu-
ment Rock, were critically examined a
few weeks ago by Fl. " Hall, mining
engineer and expert from Chicago.
brought here for that purpose by Hon.
F.. A. ManZanares of Las Vegas, pres
ident of the company. When Mr.. Man
Zanares was here a few days since he
said that Mr.. Hall had taken samples
of the ore for analysis and If the as
says were reasonably satisfactory and
his report on the geological features of
the Santa Fe canon fairly favorable,
the Great Republic Company would put
on large force of miners and would
Systematically develop their mines. He
said the company's plans contemplated
the further exploitation of the ten-foot
mineral bearing vein now exposed in
the Montezuma tunnel by sinking Il
deep shaft Mr.. Halls report seems to
have been quite favorable. He has
kindly complied with his promise. made
while here, to give the New Mexican his
opinion on the geology of the region at
the head of Santa Fe canon. This is in
teresting because it Is the first report of
the kind that has ever been made by a
practical geologst and mining eugi-
neer, and it is doubly encouraging
since it is so perfectly in line with the
views that have been expressed from
time to time by the more intelligent of
earnestly engaged in opening claims in
this vicinity. Mr.. Hall writes:
"I promised to give you my opinion
on the formation up at the head of San
ia Fe canon where The Great Republic
Mining Company's claims are located.
The one claim of their group upon
which most of the development work
has been done shows partly what might
be expected in depth when the work is
continued. The foot-wall Of this claims
lode is black mica schist. The work so
far does not show true hanging wall
and in my opinion, would not show it
until sufficient depth was reached to
pass out of the top formation of por-
| phyritic granite. I believe that with
depth the hanging wall will prove to be
porphyry, and if this Is correct, there
the best and permanent values will be
found in the form of heavy sulphide
ore Gron and copper sulphide. carrying
good values in gold). The fact that just
east Of the divide the prospectors are
now finding in this same contact such
good copper values, shows conclusively
that when the primary formation is
reached on the west side of the divide.
that here, too, the copper will come in
and represent a large percentage of the
value of the ore. l don't like granite as
it is found in New Mexico and Arizona,
for gold for permanency. But when
bearing vein is found at or near a
porphyry dyke, running parallel to
it, it is pretty safe to bet on it being all
right; and. as the prospectors say-it
will go down. If these mines are
opened to a depth of 400 feet cat the
head of Santa Fe canon) I believe that
they would show good values, and until
some one does have nerve enough to go
that far, there always will remain
doubt about that section of the schist
porphyry contact containing values;
but | have seen some of the best paying
gold mines in the west in just that con-
tact, and l believe that you all have
good opportunity to find good mines in
Santa Fe canon, which together with
abundance of water and timber, good
wagon roads to railroad transportation.
and also favored by climatic conditions,
certainly Is encouraging. But, of
course, it will take capital to open them
up and put them on a paying basis.
II never made a trip through the west
where l found more hospitable and
courteous people than I did on my re-
cent trip to New Mexico"
|