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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 16 (1932)

Issue: 2. (February)

First Page: 135

Last Page: 143

Title: Lower Pliocene in Santa Maria District, California

Author(s): William W. Porter II (2)


The Miocene-Pliocene geological history of the Santa Maria district, Santa Barbara County, California, is discussed. The Sisquoc formation, a lower Pliocene formation, is described, and it is shown that the upper "Harris" formation in the Purisima Hills is also lower Pliocene. Continuous diastrophism during Pliocene time is discussed. Its divergent effects upon marginal and central areas of the Pliocene basin are indicated by the partly conformable and partly unconformable contact.

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