The Anaconda standard., 1899-10-10

| y 4 +
State whether the veins east and
west of the faults and west of the
faults are well defined or not
They are all distinct, we'll defined
veins"
The witness recapitulated the OPEN
ings on the east and west of the faults
showing where the veins are cut off.
There are % cutoffs of veins on one
side and 20 on the other that have
seen," said Mr.. King.
DO you mean to be understood as
saying that these are all the points
where the veins are cut off, or all that
you saw" said Mr.. Patterson.
"Only what / saw. My testimony
is limited to that" said the witness.
"Will you describe the inter-fault
country now?"
In my belief, which was worked out
by careful study OF the ground, the
veins east and west of the faults, have
| been displaced about 200 feet in
northerly and $50 feet in a vertical di-
rection, and are now entirely out of
relation. This is due to the faulting
entirely. The path of the movement
was about 45 degrees to the northward
and downward. The movement occur
red after the naturalization of the
east and west veins. The cutoffs I de-
scribed are the actual places where the
motion broke off and threw out of
relation all the east and west veins.
In order to correlate these veins the
west country must be moved upward
| $50 feet and southwark 200. The two
fault assures are close together on the
| surface hence the apex of the fault
is modest in dimension.
1.-The fault is composed of two main
assures There are other veins in the
inter-fault ground that sometimes do
and sometimes do not coincide with
the strike of the main fault. The in
ner assures cut the ground into large
blocks. 1t is not always easy to dis
tinguish the true faults from the sub
faults. but the latter are local, minor
and small. The master faults are where
the maps and the model lay them
down.
THE walls of the composite fault are
composed of all the formations east
and west of them, porphyry, granite
and vein matter. Also they include
the clay selvages along the fault
planes The clay selvages are continu-
the east country and the west country
from that between. The clay is of
the kind that marks all fissures that
have had inter-lateral movement
There is brecciated matter connected
with the clay, and it is part Of the
phenomena resulting from the fault
movement So the margins of the
masses moved are not only defined
by clay, but by attrition matter. The
east and west veins, no doubt, orig
| inally went clear across the ground,
and when the faults went through, the
| latter cut solid block out of the
country, which is now contained be-
| tween their walls.
| 1.-The movement on the middle mass
| was less" than on the west mass, and
| the eastern country retains more Of
| it's original character than that OH
the west. The character of the mo-
ton is shown clearly by the breaking
and crushing of the inter-fault mass.
! This Is twisted and turned around, and
shows evidences Of great dislocation
and strain.
"The east fault fissure is sharply cut,
| but the west fault fissure was in coun-
| try that was under great strain that
caused a number of sub-faults. 1t
! is my belief that the motion started
on the east fault, and that afterward,
while the motion was on, the west
| country broke away at the west fault
and left the country between"
The witness produced a horizonta
and a vertical cross-section map of the
| faults which showed that the east fault
Continued on page 100