Page 161 - 1915, Springs of CA.

HOT SPRINGS. 145

One spring, which has a temperature of 176° and discharges about 15
gallons a minute, was observed close to the water's edge. It is
worthy of note that the maximum temperature in the thermal
springs at this locality observed by Russell 1 at a time when the
lake surface was several feet lower than it was in 1908, was 110°.
Apparently the increased pressure due to a higher lake level has re-
sulted in higher temperature of the water. This hot water is compar-
atively pure, and where it mingles with the cool, strongly alkaline
water of the lake the convection currents produce an oily appearance.
Much vapor rises for a considerable distance along the base of the
lava bluffs that border this part of the island, and the oily appearance
of the lake surface shows that considerable hot water rises beneath
it. In 1908 the springs furnished a water supply for a goatherd who
ranged his animals on the island.

MONO BASIN WARM SPRINGS (MONO 8).
In 1881 Russell visited Mono Basin Warm Springs, which then
rose in Mono Lake a short distance from its eastern edge and were
occasionally used for bathing. Springs also rise from tufa domes in
the lake. The following analyses are of a warm spring on the eastern
shore and of a spring issuing from a tufa dome near Black Point, on
the western shore:

Analyses of water from springs in Mono Lake Basin.
[Analyst, T. M. Chatard (1884). Authority, IT. S. Geol. Survey Bull. 9. Constituents are in parts per
million.]
1 2
27°-320 C.(80°-90°F.)
Properties of reaction:
36 32
0 0
Tertiary salinity. .......................................... 0 0
42 18
22 50
(?) (?)
By Reacting By Reacting
Constituents.
weight. values. weight. values.
Sodium (Na).. . ................................................ 612 26.59 51 2.23
Potassium (K). ................................................ 63 1.61 8.8 .23
Lithium (Li). .................................................. Trace. Trace.
Calcium (Ca). .................................................. 59 2.94 41 2.07
60 4.97 4.4 .36
1.0 .11
Sulphate (SO4). ................................................ 313 6.52 55 i.i4
Chloride (01). .................................................. 227 6.41 14 .41
Silica (Si02).. .................................................. 122 4.05 18 .59
1,457 192.2
1. Spring on eastern shore of Mono Lake.
2. Spring near Black Point, Mono Lake.
1 Russell, I. C., op. cit., p.
35657° WSP 338 15 10