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San Joaquin Formation : ウィキペディア英語版 | San Joaquin Formation
The San Joaquin Formation is a Pliocene epoch geologic formation in the lower half of the San Joaquin Valley in central California.〔(USGS.gov: "Neogene Gas Total Petroleum System—Neogene Nonassociated Gas Assessment Unit of the San Joaquin Basin Province" ); Chapter 22 of the ''Petroleum Systems and Geologic Assessment of Oil and Gas in the San Joaquin Basin Province, California''; by Allegra Hosford Scheirer and Leslie B. Magoon.〕 ==Geology== With the underlying Etchegoin Formation, it is associated with the numerous oil fields in the central and southern San Joaquin Valley.〔 It is overlayed by the Tulare Formation.〔 It preserves fossils dating back to the Neogene period of the Cenozoic Era.〔(【引用サイトリンク】author= Various Contributors to the Paleobiology Database )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「San Joaquin Formation」の詳細全文を読む
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