Page 66 - 1915, Springs of CA.

62 SPBINGS OF CALIFOKNTA.

in the Iron Spring. Both have primary salinity for the principal
property. High magnesium in proportion to calcium is indicated for
the Hot Sulphur and Arsenic springs.
The hills on each side of the little valley at Paraiso Hot Springs con-
sist of gravelly sandstone that dips gently away from Salinas Valley.
Granitic bowlders scattered along the ravines indicate that crystal-
line rocks are exposed to the west. Although a fault is mapped
through Salinas Valley it is not believed that such structure has
given rise to the Paraiso springs. It seems more probable that some
local fold or bedrock obstruction here forces underground water to
the surface, and that its thermal character may be due to the depth
from which it rises, in a locality of unusually high temperature
gradient.
VICKERS HOT SPRINGS (VENTUEA 3).
/
The Coast Ranges in Ventura and Santa Barbara counties are
composed largely of shales and sandstones of Tertiary age. At
several places where canyons cut deeply into these sediments, ther-
mal springs issue, and this is especially true of Matilija Canyon, in
western Ventura County. In this canyon the westernmost point of
note at which hot waters rise is at Vickers Hot Springs. The water
here issues at the northeast edge of the creek from a low bank of
stream gravel and crushed shale. A hotel and baths were con-
structed here in 1873, but the buildings were washed away by high
water in the spring of 1884, and when visited in 1908 the place had
evidently been abandoned for a number of years. These are said
to be the original Matilija Springs, and the following analysis is
believed to be of water from this place:
Analysis of water from main spring, Vickers Hot Springs, Ventura County, Cal.
[Analyst, R. B. Riggs (1888). Authority, U. 8. Geol. Survey Bull. 60. Constituents are in parts per
million.)
Properties of reaction:
87
2
0
0
11
1
By
Constituents. weight. Reacting
values.
546 23.72
32 .83
65 3.24
3.4 .28
Sulphate (8Ot).. .................................................................... 17 .35
877 24.73
58 1.93
Silica (SiOa)..... .................................................................... 41 1.37
1,639.4