. Bulletin of the United States Geological Survey--The Santa Clara Valley, Puente Hills and Los Angeles Oil Districts. LOS Iron I LOS ANGELES. t street and Belmont avenue. LOS ANGELES DISTRICT: CENTRAL FIELD. 169 A typical log for the part of the central field lying near Belmontvenue is as follows: Log of well at corner of Belmont avenue and First street, Los Angeles. [Elevation approximately 400 feet above sea level.] layey and sandy shale layey shale with interbedded oil producing sand (stray sand) rood oil sand, medium to coarse layey shale )il sand Vhite sand with salt
. Bulletin of the United States Geological Survey--The Santa Clara Valley, Puente Hills and Los Angeles Oil Districts. LOS Iron I LOS ANGELES. t street and Belmont avenue. LOS ANGELES DISTRICT: CENTRAL FIELD. 169 A typical log for the part of the central field lying near Belmontvenue is as follows: Log of well at corner of Belmont avenue and First street, Los Angeles. [Elevation approximately 400 feet above sea level.] layey and sandy shale layey shale with interbedded oil producing sand (stray sand) rood oil sand, medium to coarse layey shale )il sand Vhite sand with salt water Thick- Depth. Feet. Feet. 850 850 50 900 100 1,000 40 1,040 70 1,110 10+ 1,120+ In the region between Burlington avenue and Alvarado street thelip is steep, the oil sand being struck at about 700 feet on the northof the productive belt, 900 feet in the middle, and 1,100 feet atsouth edge. The strata above the oil sand consist largely of•:-colored shale and thin-bedded sandy layers, the latter occasion-petroliferous or water bearing toward the base of the section,ving to the steep dip in this part of the field, the wells remain in the
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