Eureka weekly sentinel. [volume] (Eureka, Nev.) 1887-1902, 1897-06-12

N4aN NGA OkNA
divide the burden OF expense With them.
I, IL q settled fact that the machinery was
detective for the general requirements OF
ths mine, but the volume Of water TO be
consended with and all Of the m,terisl that
could have been broken in the nine could
have been raised 70 the surface with ma
ehinery that should not have cost over
ous-ffth OF the sums that were paid for
the cumbersome plant which row stands
idle ct the LOGAN shaft. It ID probable
that
II TRUE WATER LEvgL
OF the Ruby Hill lode. il there Ia such .
hing, has not Jet been encountered. This
10 9 moot question. The principal how Of
water that Was encountered in the 1900
foot crosscut from the LOGAN shaft CANT
from the quartzite. which was uselessly
penetrated, but II proper measures we're
taken, that fow could be easily stopped.
The balance Of the water came from the
shale In the main hanging wall of the lode,
a we'll as from seepage from the surface,
but was immstsrial. The limestone itself
% comparatively dry. which fact has been
amply proved upon the lowest workings Of
the Richmond mine, which are deeper than
the bottom Of the LOGAN shaft. Before
the quartzite Was broken into in the LOGAN
1200-foot crosscut, when the water came
In In its greatest volume, fully seven feet
In width OF ledge material was encountered
between Q wall Of intercalated shale and
quarizite, In direct connection with the
fault, and about three feet Of that was
payable ore. The miners who drove the
crosscut through that material have une-
quivocally declared that the ore 70 there.
and more than that, they believe that it
goes down deeper sad In paying guam.
titles.
Mr.. Clarence King. the eminent geolo-
gist Of national fame, who formerly had
charge Of the Richmond mine. and is quite
familiar with the physical condition Of
Ruby Hill and the manner Of the deposi-
ton Of the ore bodies. has expressed the
opinion in the most indubitable manner.
that exploration should be carried 70 . fur
thsr depth Of l 200 feet or theresbout, and
that there lie no geological reason why ore
should not be found in as valuable guam
titles as il was found above, II she work
were done. He thought that old-bearing
A~rssnicsl pyrites and s~ilver-bearing
galens would be found in more compact
form, and hence ri,her than the oxidized
ores, which were more or less mixed with
limestone, that the lode had yielded above.
II 10 calculated that the subterranean
disturbance which created the Ruby Hill
fault raised the footwsll side Of the Pros.
poet Mountain limestone. through the Eu-
reka Con. mine, about 1400 feet.
II, PROSPECT
Rises to an elevation considerably higher
than that Of Ruby Hill, showing that the
erosion OF the latter locality must have
greatly exceeded that Of the former. Pros
pect Peak, the highest point on Prospect
: Mountain, has an elevation Of 1904 feet
and the highest point on Ruby Hill reaches
an altitude Of only 1921 feet above sci
level. II 10 here seen that the differences
In the elevation Of the two points Is 2,3l'
feet.
The outcroppings Of the ore bodies Of
Ruby Hill we're larger than those OF Pros
poet Mountain, bat the difference may b,
accounted for In the excessive erosion o.
. Ruby Hill. In the main body Of Prospec
Mountain the ore bodies gsnenlly augmen
: In size with the increase OF depth. Tn
: deepest workings In Prospsa Mountain
following the ore downward from the sur
' face, are found In the Diamond and Excel
sior mines. about / 900 feet bel,w the top o
the main ore chute and . little over 500 fee
> below the main tunnel level. The surfac'
. Of Ruby Hill 10 relatively Hat when com
pared with that Of Prospect Mountain
which 10 doubtlsss due 70 the greater ero
, sion Of the former, and II 10 therefore fell
70 believe that the outoropplngs Of til
Ruby Hill ore bodies were, u n time
. no greater than those Of the Diamond an.
/. Excelsior mines ~ the present; and II tn
. theory generally accepted hsre-that tn
ore solutions were forced up BY inaltra
tion md dynamic pressure from below
. correct. that relating to the difference Il
size Of the o~utoroppinss Of Ruby Hill ant
. Prospect Mountain 10 not without . reas
1 enable basis.
The question Of deeper exploration II
, Ruby Hill and Prospect Mountain has re
D Gently been discussed here. and there ha
! been no reason sdduoed 10 show why th,
/ work should not be remunsrstive. II ha
> been demonstrated that the ore bodies stil
{ continue going down In the caves, belo'
b the deepest workings Of the Diamond AM
Excelsior mines. II 10 also shown that ID
ore continues dipping below the dsspss
excavation In the Eureka Con. mine AND
Z there 10 reasonable probability that or
Z bodies may be found below the deepes
workings Of either Of the Ruby Hill mine
: % valuable Is those which we're excavates
q .hova II Ia msnifaat that aha Hmaatonl