The San Francisco call. [volume] (San Francisco [Calif.]) 1895-1913, 1901-12-31
AR LEARNED
PAPERS READ
|Dlogists Gather at
Their Third Annual
Session.
ne Of Shasta County's
Copper Production
Is Noted.

local Fellows Of the Geological So
on America began their third an
session yesterday at the Academy of
oes pllloing- The society is now in
"a IN Rochester. \. Y. All Fellows
he society have the privilege of pre-
ng papers, but the holding Of office
Cordilleran section is restricted to
elbows residing west Of the lO4th
-slle
ne ne paper read yesterday was by
~. lrner, who in speaking Of the
iapll. in a rock magma referred TO
granite area east of Sonora, Tue
nc Nfnty- He showed that the rock
LEcrn a granoolOriue or quartz
e. containing about z3 per cent
T. The mass was penetrated by later
OF green oiOrite. and by pegmatic
o. the ordinary type. and at its con-
Win seolmentary rock by quartz
name veins The lecturer increased
interest of his absorbed audience by
her making known the fact that
II adjoining masses Of amphibole-
psene rock belonging to the perknite
- may be regarded as related in
N 10 the granOlite magma
"copper" Ore Deposit Of Shasta.
pen came John c. Merriam, who
bed up the gates Of his vaults ana
ented reptilian remains which were
discovered in 1888. He laid open the
DRY Of two short series Of vertebrae
TWO arch bones in the triassic lime
e. Speaking OF the genus shasta
rus, they measured, he said, from six
Orty feet long. They were sea ami
S with short feet and a tail bent
2 at the end and ending in a I'm. The
fornia- differed from all others in
most Of the ribs Joined the backbone
|lnly one spot, instead Of two.
be audience was much affected at the
ement Of the California being short
III. Anderson followed GeoIogist AIer-
J. and presented conclusions showing
character and magnitude Of the cop
ore deposits Of Shasta County. The
osits discussed included those of the
/ Mountain and the belt lying to the
b and those OF the Copper City and
n Hill belt. The largest deposits IN
Ista County reached over 1000, 900 tons
ore. They are, he said, reservoirs Of
per that will not be exhausted for
my years TO come.
axe Quiberis. an ancient pliocene lake
arizona, was described by Fellow w.
Blake and left in the able hands of
Tow A. c. Lawson TO read, after which
same gentleman illustrated on his own
cunt a peculiar and unique type Of
stallzaLlOn IN lgneOuS rock IN which
capitalization began at numerous
tiers, rather evenly spaced from one
ther, and from these centers grew out
IauE q series of consecutive shells.
IS succession of shells gave rise to a
rOidal body. The rock was practically
de up Of an aggregation Of such
erOids.
Origin Of Sierra Nevada.
3 a second paper read by Turner was
united evidence Of a past tertiary ele-
ion Of the Sierra Nevada. as shown by
lparisOn Of the grades Of the neocene
present TuOlumne River. The grade
the old channel is now rs feet to the
2. while the grade Of the present river
linety-CWO feet, and the original grade
he neOcene TuOlumne, il was contend
must have been much less than that
the present river, so that with these
res we had a measure Of the amount
the fitting in past tertiary time which
given US the Sierra Nevada Noun
elbow Turner was elected president for
year and Fellow Lawson secretary.
n will serve, with one other to be
sen, as an executive committed The
sion viii continue to-day at South
D.. University Of California.
he Fellows present were: H. W. Tur-
DR.. A. S. Eakle, Professors j. c.
-riarn. A. c. Lawson. G. D. Louder
k G. Young. J. ". Sinclair, + c Calk-
H ". FurlCng, ". J. Sutton (Nic-
Ia. B. c. and Miss A. NJ. Alexander
Miss Wilson. who have taken deep
crest in the prosecution OF field re-
riches.
uring the morning session a committee
5 appointed TO draft resolutions of re-
{ at the deaths Of Professors lie Conte
L. ". Claypole.