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In 1853 the Legislature passed a joint resolution asking him for geological information about the state. He submitted a report On the Geology of the Sierra Nevada, or California Range. About two months later, the Legislature created the first California Geological Survey headed by Trask, who retained the title of State Geologist.
The oldest rocks in California date back 1.8 billion years to the Proterozoic and are found in the San Gabriel Mountains, San Bernardino Mountains, and Mojave Desert.The rocks of eastern California formed a shallow continental shelf, with massive deposition of limestone during the Paleozoic, and sediments from this time are common in the Sierra Nevada, Klamath Mountains and eastern Transverse ...
Thomas Wilson Dibblee, Jr. (11 October 1911, in Santa Barbara, California – 17 November 2004, in Santa Barbara, California) was an American geologist best known for his geological mapping.
In 1949 he served as the district geologist. He headed the project to delineate and calculate the storage capacity of California's aquifer systems. This work was essential to the creation of the California Water Plan. [1] In 1956 he led a survey to investigate aquifer mechanics and the causes of land subsidence in Sacramento, California. [5]
Josiah Dwight Whitney (November 23, 1819 – August 18, 1896) was an American geologist, professor of geology at Harvard University (from 1865), and chief of the California Geological Survey (1860–1874).
Potassium-argon dates and the Cenozoic chronology of the Sierra Nevada, California (1963) Gary Brent Dalrymple (born May 9, 1937) is an American geologist , author of The Age of the Earth and Ancient Earth, Ancient Skies , and National Medal of Science winner.
Prior to his work with GHI, Tucker served as the acting state geologist, principal state geologist and supervising geologist of the California Geological Survey between 1982 and 1991. He served on the board of directors of the Seismological Society of America and the World Seismic Safety Initiative (WSSI).
A model for Neogene crustal rotations, transtension, and transpression in southern California. Geological Society of America Bulletin, v. 103 (11), 1528-1536, 1991. Luyendyk, B. P. Simple shear of southern California during Neogene time suggested by paleomagnetic declinations. Journal of Geophysical Research: Solid Earth 90 (B14), 12454-12466 ...