264 
INDEX 
Page. 
Salt Lake field, structure in. 193-195 
view of. 168 
Salt Lake flexure, description of. 193-195 
section through, figure showing. 189 
Salt Lake Oil Co., well of, oil of, analysis of.. 210, 
211,213 
Salt Marsh Canyon, oil wells in. 4,42,45-46 
oil wells in, oil of, analysis of. 209,211,212 
San Cayetano fault, location of. 30-31, 
44,46,47,49,52 
oil wells along. 49 
San Cayetano Mountain, fault center at.. 30-31,44 
oil field near. See Santa Paula Ridge. 
rocks at.*.. 23,48 
See also Santa Paula Canyon. 
San Cayetano wells, data on. 68-69,203 
location of. 4,68 
San Fernando field, well in, oil of, analyses 
of. 209,211,213 
San Gabriel Range, elevation of. 3 
oil wells on. 96,98,99 
rocks in.J. 35,97 
structure of. 35-36 
topography of. 2-3 
San Juan Hill, altitude of. 103 
Sansinena wells, description of. 117 
Santa Ana Oil Co., oil wells of. 98 
, oil wells of, oil of, analyses of. 209,211,213 
Santa Barbara Forest Reserve, location of. 2 
Santa Clara River, course of. 1 
oil fields north of. 36-75 
oil fields south of.76-101 
red beds south of. 10 
structure north of. 30-35 
structure south of. 35-36 
tributaries of. 3 
valley of, oil field of. See Santa Clara 
oil field. 
Vaqueros formation south of. 15-17 
Santa Clara Valley oil field, correlations in. 21-22, 
143 
fault in. 29 
geology of. 4-29,143 
map showing. Pocket 
map of. 36 
oil of. 203-217 
analyses of. 209-217 
gravity of. 203 
oil fields of. 4,36-101 
oil wells of. 39-42,45-46,48,50, 
54-62,68-75,79-80,86-89,94-96,98-101 
location of, map showing. 36 
structure of. 29-36 
sections of, plates showing.28,30 
topography of. 1-4 
Santa Fe Oil Co., wells of. 128,129,130 
wells of, oil of, analyses of. 210,212,213 
Santa Felicia Creek, fossils on. 24 
Santa Monica Mountains, rocks on. 145,146 
Santa Paula Canyon, fault center at.. 38,44,48,50 
fault center at. See also San Cayetano 
Mountain. 
oil wells in, oil of, analyses of. 214-215 
rocks in. 47 
view of. 48 
Page. 
Santa Paula Creek, character of. 3 
fossils from. 26 
rocks on. 49 
Santa Paula Oil Co., oil wells of.• 42 
Santa Paula Ridge, oil field south of, faults 
in. 50 
oil field south of, geology and structure 
of. 49-50 
oil wells of. 50 
rocks of. 48 
Santa Susanna Mountains, oil wells in. 4 
rocks of. 15,20-22,43,92 
view of. 46 
Saugus, rocks near. 28,29 
Saxidomus aratus Gould. 28 
gibbosus Gabb. 153 
gracilis Gould. 27 
Scala crebricostata Carpenter. 28 
tincta Carpenter. 28 
Schist, black, occurrence of. 145 
Schist, crystalline, oil in. 100-101 
Sconsia tuberculatus Gabb. 224 
Scott and Loftus, oil well of. 196 
Scutella fairbanksi Merriam. 13,17, 230,232 
Semele decisa Conrad. 153 
sp. 26 
Sespe Creek, canyon of, faulting in. 52 
canyon of, oil in. 33 
oil wells in. 54-56 
Pleistocene near. 28 
section across, figure showing. 8 
character of. 3 
region of. 2 
structure in. 31 
rocks on and near. 28,30,52 
Sespe formation, character of. 7-12 
conglomerate in. 9 
detail of, section showing. 8 
distribution of. 7-12,51-52,63,78 
faults in. 38 
fossils in... 11 
oil from. 10,12,33,54,55,58,59,61,87 
subdivisions of, descriptions of. 8-12 
Vaqueros shale and, relations of. 11 
Sespe oil field, location of. 51 
oil wells in.54-63 
structure of.51-53 
view in. 2 
Shields Canyon, oil well in. 80 
prospecting in. 4 
Shirley, 1. W., oil well of, oil of, analysis of.. 210, 
211,213 
Sigaretus perrini Arnold. 147, 228 
Siliqua edentula Gabb. 107 
patula Dixon. 27 
Siliquaria edentula Gabb. 26 
Silver Thread fault, location of.47,48 
oil wells along. 48 
Silver Thread oil field, fossils in. 11 
location of. 4,46 
oil wells in. 48 
oil of, analyses of. 209,211,212,214-215 
structure of.46-48 
Simi Valley, rocks in. 77 
Sisar Creek, fossils from. 11 
