Word: shale
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Dates: during 1920-1929
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...most plausible cause of the disaster was the dam itself. "It is admitted," said Coroner Frank A. Nance of Los Angeles, "that the dam was not anchored to hard rock. One end was fastened to shale and the other to a conglomerate formation." Water had gradually seeped into this bed, softened it; and last week when the dam was filled to its maximum capacity, the foundations crumbled. Residents reported that they had noticed small leaks about the base of the dam ten days before the break...
...manufacture of gasoline from petroleum with a consideration of the fundamental scientific principles involved. In connection with the economics of gasoline, Professor Conant will discuss the future supply of petroleum, conservation of petroleum resources by development of high compression gasoline, and the possibilities of motor fuel from alcohol, shale, and coal...
Bones. Old bones, so old that they have turned to stone, excite the lay imagination more quickly than anything else the diggers find. Students of Pomona College (Claremont, Calif.) saw a bony protuberance exposed by a landslide on the shale cliffs of Los Angeles Harbor last spring. They picked and pried it loose, a bone five feet long, weighing 55 pounds, encrusted with marine fossils. What was it? wondered gaping natives. The femur (thigh bone), said Pomona professors, of a giant elephant that roamed California 20,000 years ago when the rim of the Pacific lay much higher inland...
...Grand Canyon, along the Hermit Trail, U. S. National Museum men busied themselves making photographs of what some took to be tracks of a prehistoric 8-legged 16-toed animal in shale and sandstone strata, 400 ft. lower than any foot printed strata known thereabouts...
April 30, 1915, President Wilson created Reserve No. 3 (Teapot Dome) near Casper, Wyo., containing 9,481 acres. (There are two other Reserves, Nos. 4 and 5, in Utah in the shale oil region...