Page 255 - 1915, Springs of CA.

CARBONATED SPRINGS. 237
The springs rise near the eastern border of a small area of granitic
rock in a rather complex region consisting of an igneous bedrock
series that contains detached masses of slate and its accompanying
schistose metamorphic phases.1

LAMBERT SODA SPRINGS (TUOLUMNE 1).
In the central part of the Sierra, near the crest of the range and
about 100 miles south of the Lake Tahoe region, there is another
region in which a number of carbonated springs rise. The northern-
most of these that are worthy of note are the Lambert Soda Springs,
near Tuolumne River, about 25 miles by trail and road northeast from
Yosemite Valley.
The springs rise at the northern edge of Tuolumne Meadows, about
125 yards north of the river's edge, at the upper border of a grassy
slope. There is only one spring of appreciable flow, but water bubbles
from numerous vents near by. The spring rises in a funnel-shaped
pool about 14 inches in diameter in a little log cabin that protects it.
In August, 1909, it yielded about 1 gallon a minute, but its discharge
is said to vary somewhat. The water is clear, strongly carbonated,
and effervescing, but considerable iron is deposited in the pool. Within
the cabin there are also two small vents of inappreciable discharge
marked by bubbling. Six other similar pools, a few inches in diame-
ter, lie on a low mound of iron-stained lime carbonate beside the
cabin, and another group of eight small pools is located 15 to 25
yards northeast of the cabin. The water in all of the pools is carbo-
nated, and small amounts of iron and of lime carbonate are deposited
at nearly all of them. Efflorescent soda salts also appear in the adjoin-
ing grassy land. The following analysis shows the water to be pri-
mary and secondary alkaline in character:
Analysis of water from main spring, Lambert Soda Springs, Tuolumne Cfounty, Cal.
[Analyst and authority, F. M. Eaton (1909). Constituents are in parts per million.]
Temperature. ............................ ...... .... ... ...................... 8° C. (47° F.)
Properties of reaction:
11
0
0
36
53
7
By Reacting
Constituents.
weight. values.
229 9.96
5.3 .14
Calcium (Ca) ........................................................................ 196 9.81
20 1.64
Iron (Fe) ...........................................................................
| 6.2 .22
24 .49
Chloride (Cl) ........................................................................ 66 1.87
564 18.80
Silica (SiOs)....... ................................................................. 58 1.93
1,168.5
Present. Present.
i The rocks of this region have been described and mapped by Waldemar Lindgren, U.S. Geol. Survey
Geol. Atlas, Pyramid Peak folio (No. 31), 1896.