The Calumet news. [volume] (Calumet, Mich.) 1907-1938, 1910-02-05
LIVE OAK.


The development work at the Live
oak property continues to open the
arc body on the 300-foot level of the
workings. Five working faces, now
holno advanced daily, are showing up
a continuous ore body. This, how
over has been the case throughout the
nitro underground workings. At the
contact between the oxidized and sui
phide ore, which is plainly shown at
the various parts of the 2OO-level, a |
leanness of the schist is noticeable. !
Relow this, the sulphide appears |
throughout the schist body and is
found at all parts of this level, whore |
the depth from the surface Is sufii-
GENTLY great to protect the rock from
the teaching and oxidation so much |
IA evidence i'm the shallower portions
Of the ground Of the southwestern part
If the Miami district. Above the 200
foot level a considerable portion of
chvsocolla ore was stopped and shipped
70 the smelter by the former owners
of the property. The large vein Of
tbis oxidized ore, showing for a
length of oyer GOO feet in q north and
south line, makes available large ton-'
nages of this ore, much of which is'I
comBaratively high grade ore. About
500 feet OF the oxidized Vein has been
opened south OF tbs double compart-
mcpt shaft and 100 feet north ofithis
shaft on the north side the IOrel does
otappear confined within the walls
Of a vein, bdt >fsPmore' OF AN hnpregl
nation OF the quartzose schist., two
5O-loot blocks lofrorea have been'sout
by drifts here, running. west from the
main drift, and 1t is here that the sui
phide- bearing schist Is best represent
ed at this level. The 30O-foot level Of
the mine may be entered from two
different points about 800 feet apart.
The sulphde tunnel measures 800 feet
nearly due north from the portal 1t
enters at the base of the hill and fol-
lows the strike at the ridge to the
shaft From the shaft northward, the
continuation of the tunnel is called
drift No. $685. From this drift, which
runs north for a distance of about 400
feet lateral drifts have been driven ut
intervals of 200 feet to the east and
west. These are four in number, two
on each side of the drift. Westward
are drifts Nos. 30S and $40. eastward
Nos. S12 and 800. These are respect
lively 230, 176, 30 and 80 feet long.
From near the present face of drift
No. SOS, No. 81 has been driven eigh-
ty feet southwark and from No. S09
few feet from its junction with No.
SO6 raise has been put up on an
Incline to the height of II feet. The
ore averaging twenty-seven per cent
copper is plainly in evidence through
out all of these drifts. as well as in
the raise. only one drift has been
dflyen from the sulphide tunnel This
dritt runs eastward $40 feet. Near its
present face, the assays show two and
ohe-half per cent copper ore, most Of
which is i'm leached ground. This drift
forms a junction with the tunnel at a
distance Of about 100 feet south of the
smart. The depth of shaft is 329 II. and
depth of the shaft is 500 feet and
SHOWS the same class of ore at the
notion as do drifts on the 30O-foot
ieveL The sulphide tunnel first enter
ed the sulphide ore body at about 500
Ieet from its portal, but TO this point
ule assays showed an average copper
content Of one and one-half per cent IN
'he leached ground. From the 500
loot point the grade of the ore in
creased and from the 55O-foot to the
''o-ioot point the ore average two and
O'e-iourth per cent copper.
From the shaft. sixty feet. of this
,uhhel Is in ore assaying two and one
"a1 per cent copper. Most of the old
workings are ON the 2OO-foot level OF
"e mine. but west of the shaft and
Vt a'l workings of the present own
~ All OF these old workings were in
'"iysocolla. mainly. the silicate tunnel
'u"n'hg northeastward into the west
''h portion Of the 2O0-foot level. Much
was shipped from this and the in
''u smart sunk at the same place.
my few feet separating the portal
ul's tunnel from the collar OF the
"alI The connection OF these with
~ @oo-toot level Is south of the YER
uouole-compartment shaft. Much
uhe ore mined from these ana other