Eureka daily sentinel. [volume] (Eureka, Nev.) 1871-1887, 1877-02-07
AFTERNOON SESSION.

hr MANU- CEocION.
Cross-examination resumed-The courses l
gave wore magnetic; | have heard of Ven
Gotta; he is eonsid sred an able geoloyist; his
work is considered an able authority; first
section. page 81, gives a correct description OF
e gregation; page 81, subdivision of section
81, gives q correct d description OF contact
veins; page s., section 30. sives a correct de-
scription. There are ore bodies found on
Ruby Hill, occurring in 'hs space between
thelimestono and the shale; they occur nearer
the line OF contact of tho quartzits and lime
stone than the shale aud lin stone; | don't
think these ore bodies were segregated oat
Of ore outside of the vein matter; Won Gotta
means by segregated as concentration of ore
from surrounding rocks; page All, section
236, subdivision 2, rake and pipe veins are
work: | should classify the description of a
pi ice v in, as read, to be lecticnear vein; |
have heard of carboniferous nmsstone; l do
not believe thu VEINS on Ruby Hill to be seq
rogated or pipe veins; the country rock W ost
Of Ruby Hill is not meta no phic; the lime
stone belongs to .he lower period OF the
Palaozoic age, and occur in the Silurian and
Devonian period, more especially the former;
iha tribolites occur generally in the Sllurian;
| take Tor granted that Ties , rocks were sod
imontary deposits. beneath tho bod of the
oc an, having thsir origin in animal life;
they are supposed to have bsen deposited In
horizontal layers: the quarthits is not a sedi-
mentary rock. and it has II different origin In
my estltlhIlOH, qudTttlLe Is d CVlupVuuu "
silica, having irregular forms, and pasted to-
gather; il wa, formed and came from various
sources; it was supposed that thsre existed a
siliclous, aqueous, gelatiDous substance or
vapor, and, by having its temperature re-
duced, or coming in contact with some SUBJ
stanc it was precipitated and Inn lterated to
a solid form; it is not a sedimentary rock,
and mrs It have found some substance to have
adhered to before it c 'uid coma to a solid
state; the limestone is sedimentary rock; we
have evidences in the neigh borhood OF erup-
tive and volcanic action; the imestons has
been raised no doubt; forces raising IT. up
would fissure and metamorphosel 1t, and those
sources whore the eruptive forces were felt
the heat enlarg- ID the assures; il not water
came from below W. would have found more
caves; | think the caves wore tor ned by wa
ter percolating vertically, which caused the
caves to come near r the foot, wall; II coming
acid, they would have dissolved more car
Donate Of lim-, and made larger caverns;
%caverns do not always represent their orig
insl width; r cks which fill them may have
enlarged them by ta>isg up corbonic acid,
and thev may be enlarged even after being
filled with mineral mattcr; the groupings of
the vein bstwsen the Lawton shaft and tho
Richmond incline run nearly an ~eastarly and
westerly direction; the 1907 val OF tns Nm
runs in a general course Of =. to w; varies
from Il. Is Dig. S., to 4. 5 de-. w. On the I'd
level the foot wall runs + 10 dg. N; | fnd a
TWIST 1g Of wal on tho Sth level Of tho Eu-
reka Consolidated, changing its course ma
t%erially; | notice great irrsga arities on that
level: tho dip Of tho lodo is at right angles
with its course; tho foot wall may va y from
its course; if the. hypothetical case
you have. stated is true, then the
the Eureka Consolidated. lode; if you take
that space only to judge by. in my opinion,
the X X is on the same vein that courses
through that territory; II The X IL SHAFT and
its wor kings is on the same dip as that part Of
thn ain nj thu "A u tpn ehnff und the ca M
course, it is on tn dip of the vein WORKED in
| the Lawton shaft; the teneral pitch of tho
vein is to tho Ne; the Skylark would be on
the same dip for that particular place. In
would take in the X X ground. II from tho
surface to the bottom of tho workings, p0-
ished and s,rated foot.walis w3re found,
would have to see it to judge VIII thor 1t was
whether tho foot walls were turned; tho
course you give mo is at right angles; tRe
course Of tina foot-vall in the sth level is NJ,
81 Dig W. In the seventh Level tie course OF
the quartzite is S 80 Dig. I found ore
near the quartzite in the Richmond, IN the
9TH or Sth levels, near the Wine; there is ore
near the auartzte, and TO tn NE. Of it; the
general course OF tho SIh level, from the
Richmond sh aft, is n Il; the course OF the 7th
level is T., and Sc. and turns and rms in
A northeast direction; the 9th Level Of
the Richmond shaft runs h., then f., an9
then ia an easterly direction; tho 9TH level
runs in about thu same direction. call the
qusrtzite the foot-wall, because | find a dif;
the limestone | find it to be in the same
channel that the ', IN is; another reason Is,
that / find the same division between the
quartzite and limesto ne a. on the Levels
above, with a little clay material interposed;
tho surface of the limestone and ,quartzite are
sometimes poll she'd; | saw evidences OF mo-
ton hat wouli lead me to believe that it was
a foot-wall; | did not SEQ thousands of pol
ished surfaces in tho Richmond workings; II
} the foet-wall ran 1909 or 1900 IT. deep, ano