. Bulletin of the United States Geological Survey--The Santa Clara Valley, Puente Hills and Los Angeles Oil Districts. B. LAGOON IN SALT LAKE FIELD, LOS floating oil and bubbling water due to escaping gas. LOR ANGELES DISTRICT I SALT LAKE FIELD. 189 >a northwest of the flexure appears to occupy the same horizon,e sands beneath the uppermost persistent layer vary somewhat in. 190 OIL DISTRICTS OF SOUTHERN CALIFORNIA. thickness and composition in the different wells. This is to beexpected, since individual layers in surface outcrops of similar beds inthe Los Angeles region und
. Bulletin of the United States Geological Survey--The Santa Clara Valley, Puente Hills and Los Angeles Oil Districts. B. LAGOON IN SALT LAKE FIELD, LOS floating oil and bubbling water due to escaping gas. LOR ANGELES DISTRICT I SALT LAKE FIELD. 189 >a northwest of the flexure appears to occupy the same horizon,e sands beneath the uppermost persistent layer vary somewhat in. 190 OIL DISTRICTS OF SOUTHERN CALIFORNIA. thickness and composition in the different wells. This is to beexpected, since individual layers in surface outcrops of similar beds inthe Los Angeles region undergo important changes of thickness an\oil through fractures, although it may possibly be accounted for by a i!slight change in the grain of the sand near the flexure. The samebeds, however, continue to carry considerable quantities of gas asthey pass over the line of the disturbance. The main sand, which yields the bulk of the oil, is apparentlfairly constant over a large part of the field. This sand is approximately 100 to 125 feet thick, rather coarse-grained, and high!impregnated not only with oil but wit
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