Tonopah daily bonanza. [volume] (Tonopah, Nev.) 1906-1929, 1908-01-19


dition, physically, than she is at the
present time, and the showing under
ground was never more promising.
The problem of the dacite intrusion
has been practically worked out, and |
it has been demonstrated that there
are ore bodies under the fault which
occurred in the higher levels of
nearly all the mines. The values of
the ore at depth is yet to be deter
mined. but the progress which is be-
ing made in this direction is more |
than satisfactory Mark B. Kerr,
consulting engineer for a number of
properties in the camp, has been here
during the week, and he expresses
himself as well pleased at the condi-
tions underground Speaking of the
daciie intrusion, and the work that
is going on in regard to it, he said:
1--WE are now prosecuting develop
ment at depth, to ascertain, If pos
sible, the extent of the dacite intru-
sion, which seems to have had so
great an impression on the veins of
the everything andesite, twisting and
faulting them in quite complicated
manner. 1t seems now from this
part of the development of the mines
as If there might be two dacite in
trusions. Following out the nomen-
clature of the United States Geologi-
cal Survey report, we can designate
these as the Brougher mountain da-
cite and the Oddie mountain dacite.
The Tonopah rhyolite dacite would
seem to be distinct intrusive form
alton, although closely allied with the
| other two. Taking a practical view
of the situation, it would seem that
at some. point, not yet discovered,
these separate intrusive masses came
together, and that in the center
would be considerably deeper than at
the extreme edges. 1t is these edges,
| notably in the West End, Midway
and the Montana Tonopah mines
that we are now working and exam
ining with some favorable chance of
successfully determining their ex-
tent and relation to each other.
al 4 10 nc.
to point out, so far as developed,
forming sort of tongues. If we can
follow around these tongues and
reach the lower side of the intrusion
at the points where the intrusion mar
rows, it would seem practically sure
that the quartz veins in the andesite
from the center of disturbance. AS
t we approach the center, and even at
: points where the lower andesite has
been encountered and alteration dis
: covered, calcite displaces the quartz
Away from the disturbance, quartz
will undoubtedly take the place ot
"a |
andesite should be improved.
'In the Midway, below the eigh
hundred level, we are following ;
contact on the edge of one of thes'
dacite tongues, and with create
, depth it seems favorable for the or
improving in values. At the frs
J station, which is one hundred fee
below the eight hundred, prospectin;
of the adjoining quartz body will b.
prosecuted, but this will not inter
Ie fere with continuous sinking. A
,e another hundred feet, prospecting
J. will be again prosecuted, and it
al hoped to obtain higher values b
I this work. The Montana will 500
A. resume prospecting in depth on thei
Dr. lowest ore body, the character 9
e. which is closely allied to the or
le body in the Midway"
at With these ore bodies proving goo
m milling values, there are more boz
o. ANA days in store for Tonopah. TIL
n camp has become essentially mil
ing camp. and we have the mills hel
to do the work. Without the ore
the lower levels, there is enough
sight to keep the camp going Il
~, many a year; with the ore In thoi
rs. levels OF commercial value. the II
ey of the camp has mo- limit In Il
nd Montana Tonopah they are not giviI
out any Information with regard