. Bulletin of the United States Geological Survey--The Santa Clara Valley, Puente Hills and Los Angeles Oil Districts. ., Bull. California State Miniig Bureau, No. 11, 1897, p. 6. West of Belmont avenue the dip becomes steeper, and although thewater line becomes lower, and the wells consequently can go deeper,the field narrows appreciably. Between Burlington avenue and Alva-rado street the productive territory is about 600 feet wide; west offAlvarado street it narrows to 500 feet, and at the end of the field,near Coronado street, to about 300 feet. Near the corner of Belmontavenue and First st
. Bulletin of the United States Geological Survey--The Santa Clara Valley, Puente Hills and Los Angeles Oil Districts. ., Bull. California State Miniig Bureau, No. 11, 1897, p. 6. West of Belmont avenue the dip becomes steeper, and although thewater line becomes lower, and the wells consequently can go deeper,the field narrows appreciably. Between Burlington avenue and Alva-rado street the productive territory is about 600 feet wide; west offAlvarado street it narrows to 500 feet, and at the end of the field,near Coronado street, to about 300 feet. Near the corner of Belmontavenue and First street the wells penetrate soft fine sandstone andsandy and clayey shale for the first 850 feet, below which they passinto a 50-foot zone of clayey shale, in which are interbedded petrolif-erous sandy beds called stray sands by the drillers. The oil sandis struck at about 900 feet and is 100 feet thick, the dip here beingbetween 30° and 40°. At 1,040 feet there is a 70-foot sand, whichgrades below into a white sand bearing salt water. This constitutesthe lower limit of the productive zone. U. S. GEOLOGICAL SURVEY. A. EASTERN OILLooking north ft
Size: 1931px × 1294px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidbulletinofunited309eldr
