Daily inter mountain. [volume] (Butte, Mont.) 1881-1901, 1900-03-26
GEOLOGY Of
THIS DISTRICT
Particularly Of the Mines in
Litigation.
CLARENCE KINGS VIEWS
Eminent Geologist on the Stand in the
C0lusa- Parrot Anaconda
CLARENCE KINGS VIEWS

Clarence King the celebrated geOlOglSt,
was a witness in the United States court
to-day when the trial of the suit of the
Colusa-Parrot Mining Co. VS.. the Ana
conda Co. was resumed before Judge
Knowles. Mr.. King began with a geo.
logical description of Butte, the forma-
ton of the veins, ore bodies, faults and
assures of every description. His def
milton of the mineral characteristics of
he Butte district was. very interesting
and was listened to with close attention
by attorneys experts and spectators.
After detailing the official positions
which he had held and the examinations
he had made in the interest of the Unit
ed States government n the investiga-
lions of mines he had made for private
parties he went on to explain the nature
Of his examination of the geological for
nation of the Butte district. He had
made a study OF the veins of the Amazon
da and Colusa-Parrot n the workings
of the mines. He began his studies a
year ago last May and had continued it
at intervals ever since. Among the
mines he had examined in the district
We're the Rarus, Pennsylvania, Michael
Dewitt and portions of the Mountain
| View, Parrot and Ramsdell Parrot. In
all he had spent about 40 days under
ground and also had made a very thor
ough examination of the surface of the
claims in dispute.
Twin you please state, speaking gen.
orally and beginning at the surface hat
you AVE observed and what your con-
illusions are with reference to the for
nation and the cOnditiC.. ore de-
posits within the area empraceu Ind COW
cred by the model?" Mr.. King WIS asked,
1.-THE area involved in this litigation
and immediate neighborhood is geologi-
cally speaking, a mass of granite rock,
which Is part of a general mass which
, extends from several miles south of here
to 10 or Is miles to the north to my per-
sonal observation and from the conti-
mental divide or the east to the Butte on
the west"
us there any particular name by which
you would designate that granite STRAIT
! um or deposit?'
ut is evident from it's PHYSICAL condi-
ton a rock which has been formed under
considerable pressure, and the general
term for such formation is py%ro-phyllite,
a deep rock"
us there anything about it that would
indicate its general age?"
1.-The age so far as I have observed is
not determined. It must be determined
by observations more minute than any I
have been able to make. The rock itself
| is a somewhat peculiar granite which is
| not strictly an old fashioned granite but
| belongs to that new class which has a
range from the granite diorites on one
side to the quartz-monzonite on the
other. This rock is not a simple rock of
quartz, feldspar and mica by any means
which is the true composition of granite.
It's constitution is a quartz, both mOno-
| clinic and tri clinic feldspar. hornblende,
augite as essential constituents, hav-
ing more or less tilanite and aplite in
/ small quantities, constituting the mainly
! visible non-essential elements"
Mr.. King said the Anaconda vein suf-
| fered a local distortion on it's surface, but
did not effect it below. The vein had an
apex from the east end line of the Ana
conda to the Never Sweat shaft. He
Sweat-Anaconda vein and pointed out
the portions near the surface where it
had been cut by the fault.
At the Never Sweat he said a new body
makes it's appearance near the surface.
This body was chiefly clay, but it had an
Importance owing to it's position. In the
railroad cut south of the Never Sweat is
seen the outcrop of a large oxidized vein.
This vein had some relations to the mass
of clay near the Never Sweat shaft.
Mr.. King traced on the maj the posi-
ton of the Anaconda vein at each level,
showing where it was intersected by the
fault. This cutoff he said was clearly
discernable at nearly all of the upper lev
els. The vein in some places had been
broken off sharply, in other places round
ed like the stern of a ship and in other
places very roughly broken. In all places,
however, the line of demarcation was very
plain.
The Anaconda vein was then traced on
it's downward dip through the Anaconda
and Never Sweat to the south side line of
the Colusa-Parrot. On the lower levels
the vein was split by a granite horse. All
the displacements, and faults We're point
ed out by Mr.. King who went into a very
elaborate explanation of the causes and
effects. Speaking of the Colusa-Parrot
vein, he said one characteristic of it was
that it was a granite ledge and not a
quartz ledge. He also showed the 700 foot
level of the Colusa-Parrot where the vein
of that mine was first shown to be cut of
by the fault.
Mr.. King vas on the stand during the
afternoon.
The name of Joel F. Vale was entered
today as counse for the Anaconda com
pany.
Stomach Trouble
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