Daily inter mountain. [volume] (Butte, Mont.) 1881-1901, 1900-04-04
Mr., bRUNT0N'S
DESCRIPTION
Of the Physical Differences Of
the Veins.
HE GIVES DISTANCES
Says the Colusa-Parrot and Anaconda
Veins Were One Vein Cut
by a Fault.
GIVES DISTANCES

David w. Brunton, the last expert wit
ness for the Anaconda company in the
Colusa-Parrot suit, was on the stand for
about two and a half hours yesterday.
During his direct examination yesterday
afternoon Mr.. Brunton very fully de-
scribed the various workings in the Ana
eonda and Colusa-Parrot where the ore
bodies were cut off by the blue or fault
vein. Among other places mentioned by
Mr.. Brunton as places where the blue
vein cuts off the main vein was the 600
level of the Ramsdell-P Parrot where 1T
cuts off the Colusa-Parrot vein, and in
the Oden, where it cuts off the Anaconda.
The granite horse is seen at the 700 level
of the Anaconda for the first time, and
the 500 Of the Colusa-Parrot shows the
fault. This fault vein Mr.. Brunton said
had been cut at the 900 station of the
Colusa- Parrot, a fact which Mr.. Brun-
ton said was made evident by the fire.
quency with which that portion of the
ground "a to be retimbered.
Mr.. Brunton produced several photo
graphs showing the structure OF the
fault vein at the lower levels, accom-
panied by samples of the soft. clayish
matter that constitutes the walls OF the
fault. Samples of the rock from the
Anaconda vein were also shown. and con-
trasted with the rock from the fault vein.
| Mr.. Brunton said that the ore found in
| the blue vein at the 1900 level Of the
Colusa-Parrot had no connection with
the Parrot vein owing to the difference
in its dip and strike. Mr.. Int was
not a believer In the drag theory in
accounting for the manner in which ore
had been deposited in the blue vein.
The witness produced a small model,
designed to illustrate that the main veins
We're once ore until separated by the
fault assure, and how the Colusa-Parrot
end Of the vein had slid down hill about
1000 feet. Mr.. Brunton also said that a
portion of the apex Of the Anaconda a
! disappeared on the surface near the west
end Of the claim. Mr.. Brunton also de-
tailed his experience in locating faults in
bodies of ore, mentioning among others
the Colonel Sellers mine in Nevada, the
Della s.. in Aspen, and the Homestake.
Mr.. Brunton's direct examination Oc-
upied about half an hour this morning.
He said that the cutoff of blue vein
j passes out of the Colusa Parrot about the
1900 foot level. There is no stopping on the
1900 or 400 of the Colusa Parrot but
there We're slopes on the Anaconda down
to the 1900.
MT. bTuulOH gave lHe ulSldlCe from tIlc
hanging wall of the Anaconda to the
footwall of the blue vein at various
points. The most noticeable difference in
the two veins, he said, was the difference
in their strike. The Anaconda and Col
usa Parrot veins had an east and west
strike, while the diagonal or blue vein
had a northwest strike. The structure of
the two veins We're also much different.
That of the diagonal vein was brecciated,
stacking away on exposure to the air,
while the Anaconda and COlusa Parrot
veins were solid and not affected. The
blue vein had to be timbered closely and
the timbers were covered with kaolin,
looking like white mortar while the Ana
conda and COlusa Parrot timbers We're
simply stained by the copper water.
While all the veins carried mineral, the
naturalization Of the blue was very un-
even.
Mr. Brunton described the principal
physical differences of the veins. It was
quite evident he said that the Anaconda
and Colus Parrot We're once portions Of
one continuous vein, which had been sep.
arated by a fault. He had visited thu
Salisbury workings. The blue vein, he
said, pass through the collar of the
salisbury shaft, which was sunk on the
line Of the Colusa Parrot vein. But the
Colusa Parrot vein he said was not found
in the Salisbury because the blue weir
had cut it off.
On cross-examinatiOn Mr.. Brunton was
asked as to the distance between the
hanging wall of the Anaconda and the
north spur of the Colus Parrot. The dis
lance on the 900 level was 220 feet, on thu
700 level It's feet. on the 800 foot level IA
feet, on the 900 level 30 feet and on tn.
l 900 foot level SIS feet.
Mr.. Brunton was asked to designate thu
distances on the map, but Mr.. Bruntor
replied that the north spur of the Colus
Parrot was not shown. Asked why it hae
been left off, Mr.. Brunton said it had no
been developed sufficiently to designate
it's position with eXactness. Mr.. Hughe.
inquired if the Colusa Parrot people hat
not 400 feet of raises on it to which MI
Brunton replied that he believed that t.
be true. but until very recently to tn
plaintiffs themselves this north spur wa
practically unknown.
Mr.. BruntOn said that the greatest dis
lance between the hanging wall Of tn
Anaconda and the foot wall of the COus:
Parrot, through the blue vein was 2S6 fee
about the 600 foot level of the Anacond,
and the least distance was 81 feet dow
below the 1000 foot level. On the 500 foo
level of the Colusa Parrot the distanc
: was 1872 feet.
The walls of the Anaconda and Neve
Sweat, Mr.. Brunton said were very clear
ly defined, showing in some places fror
one quarter to six inches of selvage q
clay.
There We're three streaks in the Colus
Parro vein. but he was of the opinion tina
they constituted one lode, although ther
had been many ribs of granite betwee
them that had been stopped. Asked II h
considered the treaks. although widel
separated, n vein he said he would 6
, consider them when he found that tn
naturalization of he streaks effected
junction below.