The Salt Lake herald. [volume] (Salt Lake City [Utah]) 1870-1909, 1892-04-03

get to the slopes, Is the Indication for min
eral as good as in cut 7.''
"No, sir.''
SIS quartzite found in this lire of cuts
the same as you lind il underlying the vein
on he ether sidet'
ut is the same.n
Have you examined cuts V, q. 1 and
l on the Jennie Lind!n
''Yesn
Did you find porphyry there?"
Yes, there is porphyry there"
| How is it in tue other cuts!"
mo porphyry."
as the contact between the quartzite and
lime disclosed On the line OF the plainu1' s
ouls?"
ut is"
Assuming that there was a porphyry
dyke there, would it end the veinl'
"No."
"Have you known of cases in that dis
trict where the vein was cut by porphyry
| IKE without ending it.''
EFFECT OF PoRPHrRY DYKES.
81 do; in one case, in the Ontario, the
vein was cut by porphyry dyke, and it
continued right along on tie other side
without displacement. IL another ace,
IN the DAILY, the spur vein was cut by q
dyke, and 1t did not interfere with the con-
tinu!ty of the vein at all, although there
was fauiting q sixty i've feet. The min
erat was just as coed On one side as the
oJber, and the ends OF the vein matched.
nave also seen veins cut by porphyry on
the Comstock and their continuity undis-
turbed.n
'Do you know of any tunnels east or
west OF the Jennie Lind which would prob
ably have disclosed the porphyry if it ex-
listed in such line as to cut the vein?''
II co. There are the 'Hanauer and other
tunnels, and 10 porphyry has been dis
closed tneren
~ will ask you if, Of your or n personal
knowledge, you know OF instances in The
district where porphyry was found and
proved to be lccal!"
Il do. On tie Ontario 7C0-foot level we
! found buuch of pOrphyry and cut in all
direcilous aroErd Il, cut found TO other
porphyry. Again. at the Daily Nc. shalt
on the 5G0-foot level, we fourd body of
porphyry which was not struck 10 the 600
level. Both of these buEches are thrown
into quartz.te."
MIR. Wlhams-But you dorot dispute the
accepted theory that torphyry is an jgne-
Gus rock, thrown up from the deep.
Certainly not"
BACK TO THE UPRAIsE.
How thick is the vein in the Court up
raise2"
1T varies considerably, and has wideued
out so 1T one place that we have al TO put
some timbers in, ard we expect to strike
ore any time.n
What is the composition of the vein
matter noT!"
Manganese and q little clay"
Mr.. Dickson " hen was it that the de-
fendants first encountered GRE beneath the
triangle!
"On December 81, 1850"
you were here on the Perego case when
he was suing to get tho May flower:''
Yes, it was aUout that time
when cid you cease extracting ore
from beneath the triangIe?"
''On January 10, 1850; but one man went
eack in there on the 18th. 1 called him out
as soon as ! learned Of it,
''Wnen was 1t that the Northland people
! broke through into the triangle!n
Il don't remember, Iosilively; but be-
lievo it was on January q.
(which was the better grade Of ore, that
taken from the stcpa in tne incline or that
| beneath the lriacglc:"
MORE SECOND CLASS IN TIE TRIANGLE.
There was great deal more second
class in the triangle"
How much orc did you take from be-
meath the trlangle!"
~ estimated that there was about one
hundred and fifty lons OF hrst-class and
500 tons of seCOnG-class."
What does IL cost 10 extract ore, under
conditions the same as existed in the tri-
anEle!"
''It cost about S13 ton at the Ontario
when | went there. Now its costs ABOUT
50. TIE cost for milling and transporting
would be $3.50 additional. Ill the figures
can be obtained from Mr. Emery
II. u. IIPPETo
testified: have been engaged in mining
in Colorado, Utah, Nevada, Montana and
Idaho fer forty years. and my experience
has been chiefly with silver lead ores l
am familiar with this ground, having made
Jour examinations. There IS q contact,
bedded vein there, between quarjZite and
lime. The ore comes down to the quartZite
in the left-hand branch of the Woodside
tunnel aad it shows for a little ways be-
You'd. In Johns drift the quartzlto is
found again. For thirty feet in the main
incline the ore comes down 10 it.. The
lower DRIFT was practically all in QUartzite
In no place did he see the ore go through
it. The ore went from one bedding plane
of lime to another.
~ TIE FAIRvIEw.
Judge Marshall-Wher is the apex of
the vein.
The witness quickly traced the contact
around from the North Pole discovery to
the Fairyiew, as shown by the cuts, and
located the apex there. Some years ago
he went out and made an examination
of the property for parties who intended to
buy it, and at that time, came to the con-
clusion which he had since demonstrated to
be the truth. He had found 20 porphyry in
place in any cut except the three of the
plaintiffs. If there was porDhyry dyke
there,
IT WOULDN'T CUT ANY FIGURE.
The Raindale was cut by porphyry in
four places, but the vein continued on all
right. In dismissing this subject, Mr.. Rip
peto said: ''Porphyry doesn't discouraEe
the miner. 1t may displace the vein little.
but that is ail.''
Continuing, the witness stated to Mr..
Williams that there was ore at the Fairview
incline, and he was con hdent that it would
assay. He saw little break in the foot
wall at the incline, but if it was q assure.
he didn't believe it was ore bearing. AS to
porphyry, he believed It to be local, and an
overflow.
IAN overflow from where?" asked MIR.
Williams.
"From the place where there is por-
phyry dyke"
''And where is that?''
BE GAVE IT UP.
81 don't know" Laughter