White Pine news weekly mining review. [volume] (East Ely, Nev.) 1910-1920, 1914-05-03
Conditions At
the Boston Ely
FAILURE OF DRIFT TO LOCATE
ORE MAY RESULT IN DRILLING
FOR THE MATILDA VEIN so
LONG SOUGHT.

as to what will be done with the
Boston-Ely unless. something of an
Encouraging nature is secured in the
southwest drive within fifty feet Of
the present face.
| 1t appears to be the sense of the
local management that 1t would be
suicidal to the best Interests of the
average shareholder to persist In
bucking the impossible rock forma-
'tion which has obtained for some
time past. The face of the drive Is
only about fifty feet from the point
where the Matilda porphyry dyke
should have been encountered, pro-
vided the dip and strike of said dyke
has held from the surface to the 1926
level. where work Is at present being
prosecuted. Nothing to check this
known surface dip and strike forma-
ton has been done between the sur
face and the present level.
1t is quit possible that there is a
wide chance of deviation of the
known dip of 6S degrees from the
horizontal as known at the surface
between this point and the present
working level. The chances are very
much In favor of material fiatten-
ing In the dip between these two
points.
At present they are in wollastonite.
an impervious. tough, tight. nom
fracturing rock. which while not par
ticularly hard. is of such nature
that Il does not break or drill at all
satisfactorily. Instead of bucking
this at cost of $40 to $50 per foot.
1t would seem advisable to put a
diamond drill in and drill at an NJ
angle OF sufficient elevation to admit
OF the drillings from such hole either
to be eliminated by gravity or to be
capable OF being washed out by the
drilling water. and thus avoid trou-
bics chtouhtciCu t"o sCafS abo III
down drilling. whereby the cavings
from holes in that direction prohib-
tied the clearing of the hole, and
this course II persisted in for three
or four hundred feet beyond the
present face of the southwest drive OF
the present level would prove beyond
the shadow of doubt of the most
conservative whether or not the con
tinuation Of the Matilda dyke was of
sufficiently persistent nature to
hold commercial possibilities at this
level. And this could be known be-
yond the peradventure of doubt at a
cost not to exceed another months S
work at the presents months basis.
Before the possibilities of Boston
ELY are exhausted, II is the consensus
of opinion of those best informed in
regard to the mineral formations of
the district, work from the surface
On the Matilda vein should be follow
ed from the surface. In 1903 the
company grudgingly authorized work
advanced from the old Rockhill-Boyd
adit. This work was done in an en-
deavor to pick up the Matilda dyke
which Thomas Rockhill and Thomas
boyd had started of to do and fall
ed to accomplish. 1t was felt at that
time, In view of more study of geo.
logical conditions, that this adit was
in the footwall, and that cross-cut-
ting southwesterly should be resorted
10 in order to accomplish what the
old timers haG set out to find. When
this cross-cutting had been forced to
a point where the dyke should have
been found and was not, 1t was de-
cided that there had been some local
disturbance. IL was then determined
to drive directly for known slope
approximately northwest. where the
dyke had been followed down from
the surface. When within twenty
feet of this old slope cross-cut was
driven toward the footwall. /. e.,
northeasterly. the dyke was found to
exist thirty feet wide. In this dyke
was disclosed kidney. or small lens.
Of ore. which assayed 1873 copper
and about SIS. in precious metals,
figuring silver at current market
rates.
Whether or not these values are
indicative OF Others at depth can only
be demonstrated by following the
dyke downward. thereby proving II
foot by foot from the surface down
ward. or striking It with drill holo
nj the 1926 level.
The treasury of the Boston-Ely Is
in good condition and there Is moth