Gold Hill daily news. [volume] (Gold Hill, N.T. [Nev.]) 1863-1882, 1880-07-23
CALIFORNIA AND NEVADA GEOLOGY
Extracts From . Paper Resd Before
the California; state GesieEfeal
Socissy By Melville Atwood.
pop,E LEpon srnucrunr.

Socissy by Melville ATWOOD.
-
BoDiE LEDGE srhUcrohf.
I have made . careful examination OF
the '.jointsd structure" from the Aurora
Tunnel to Bodie Blum, and found that
in that section the joints, or rents, form
planes OF separation which are often
sli8huy open ana IRON Anew incnss 70
many ,s'. spais 1 y.,i.d%.,.,w,nsS
i;nss which bsrs dsanits oompass bear.
inca Thav anns.r 10 be Of thrse kinds:
:. Vs,,;coi ;o;pts " \" din ;oints" and
diagonal ;oints." The creyics veins
AIiino nort;ons Of thsss ioints. or rents.
-. 1p.,in ., i{mitsd sI,snt and
s..,h ssoy,h .on.t;r.s r;ob In ooId-
W. pss;H DIE ~. r-,onnin,. ~ m.rv
,.;.s ~ M. chsrsessr NAV bs ,ssn.
,s'u ~. A. ~ ~. $1,000
.a.y ~. h.,no S-.dssush.n.d IA
s-.;n. :, M ;%rc,nsiSsrsbis dsntb.
nAN 49, 49, d;s.rsnt
o.aels' ao H. 49,. ~
!sougn OF tns saysh =. ~. st.,S'
muse "e' WI. \ IA hn, A.
arc mihe, WnioI "a
Q appear 70 NV yS'opp,As y,
nave osen ei,co,sl'.
some aeP.n osiox 'ue
ground. hiling portons Of " Ioln.s
and following them down ~ insefseoseo
by diagonal joints and running aions
the diagonal ones into othT dip lolnu.
srMILARrrrrs ELsrwRSRE.
.,m;,., o,... ~ .nrifSrous vsins
-, -;,h IN I%nstr,is Mr.
m.;u,.se = n q ..ys M nsnsr
80 =. ,a.a h.,o,s a.: I,ordon Gso-
,.s;.., sao;s,y In 1874 cor osyt,in
- - occrysnc. M cola N Iust,s.
- p.i.,s A.. -. ~ J~aoo,nrosit;on
$50 s.nsrs,,1 ,oss . olsss al
.N,;ts,nr. ,s,ns vh;sh bs,s nroyed ysrv
m;.is.S;no 10 N. miner. tbonob usually
- ,;ah p oo,d the. u%.nsiIv follov
w.. H. - ;o;n,,no. In ths roct and
Wv - %,1;n;on .;mnlv dua ~ tbs
s.s, - -. .rr;S.ron. n~v,,t.,
"ons w sooL "a ~ 80
anu " wy ~ aOsomno..S m.,s,;.l
posi- W ~ u.;ssI ..tu,;on - 80
= pas Ms. pss;. 49, a. ~ IN.
nssu'ss -. 49, -. 10, ~ ~. as,
saias 0'ass 49, ~ s".JS,.. ~,
OF tue ooms'oeA' suu .'sss si"s
Iooe' 'no Elea'e, Nit, =.
may % csiis1 -.fseny. Do.se,
al 'nsil aiaeLens s'aSe ..;sa III
mo NJ.
P,oyeu 'oi 'uo "M. ,;.,I. ro.l a.
hT,iey; 10 ms p son ~ ..rS.
.ihe e'uoy W, 49, 49,. Ia.
term s'oeus'ono, Nl'Vu, N.s
signincauon emoiace1 pasAi,' uiso
gaooro' aioiite' eec., mas
oeen restricted IN ls SpphI aa a.i."
smpioysa a. .yaaym ~. :.
o,neo, !. $3.50 S.s;..hi.
si,uos, S;.a.ra 4, .,;n hs,,sr , on.s
:. =. -. ,s;.;nsI 800 40 an s%mh;.rons
- rs.,,,i ~ a.Id
anu u.u "5.i..,S,.
geoiosy, ou' o.nois'.s ouiy nv"
asau .ssI. - .wievsa
islSe' suou - .a.y. ~, os,..;n ~.
m.;ns S." ~ oSvsNosd -. ~
y, daoomno.;,;Nn and IN vh;ch ,hs con.
.,;,rsn, m;nsr.is ava an noo,,v dsy.l.
MI That n "a M lonoe, ssfs or nossibIe
~ hazard ,nv opinion oo%nosrnipe their
ureci.s normal mi~n.raloeical oonstitu.
tion."
THE coNsrocx.
The rocks collected during the sinking
Of the new Yellow Jacket shait-now
5000 feet deep-will, when properly de-
termined, throw more light on the gsol.
ogy Of the Comstoek than any work that
has yet been undertaken. The difference
between the Comstock lode andthe lodes
OF Bodie; l mean those OF the Bodie
lodes which occupy portions OF nssures
which have dislocated and displaced the
jointed structure, are that the country
east Of the Comstoek lode forming the
hanging wall consists entirely OF acid
rocks Crooks containing . large proper
ton Of Silica while the west eountry''s
footwaii rocks are what are called basic
rocks. snamesits. dolorits and Mount
Davidson diorite, oil OF which contain
out q small percentage OF sincs. Inc
branch assures. however. which yielded
jointed structure to the O Q and west Oh
them and are enclosed In acid rocks. 20
that it Is comparatively easy to distin-
guish between them and the main lode.
The Bodis lodss, 30 far a. I have EXAM
ined them. have acid rocks for their foot
and hanging walls; in fact, are inclossd
IN them.
HUI "
The most reasonable oiuton ior the
not wafer encounters IA INC ossp wotk'
ings o, 'ne ooms.ocn - ~
ing solcanic seuon, ~ inc nlgI tem.
peralute Q, 'ne ess' county .Seks' 9r
'nose 1'e.,ay,ns .s' ioae, .nink 20
caused oy q nes'eu vaPofs i'sing RON
inc man insure through me- planes Oh
the lointeo stfueture, q numeroas
olsnoh nssules inc west 0oqnuy losks
oelns o~ompsrauveiy cool nT' spt,ngs
arg nesiIy aiwsys oanu ~ 'uo ne'sn'
oornood OF s1anot ana sotiVe volcanoes.