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The AAPG/Datapages Combined Publications Database

AAPG Bulletin

Abstract

Volume: 24 (1940)

Issue: 11. (November)

First Page: 1940

Last Page: 1949

Title: Eocene Exploration in California

Author(s): F. A. Menken (2)

Abstract:

Although Eocene production has been known in California for 40 years, it was not recognized as an important producing zone until the recent discovery of Eocene production at Kettleman Hills and Coalinga. The stratigraphic types of accumulations as at Coalinga have been the impetus for detailed study of Eocene deposition and distribution. The Eocene of California is characterized by unconformities, lenticularity, facies changes, and extreme variations in thicknesses. The present trend is toward remapping of the outcrop section, correlating and rezoning of the formations and delineation of possible stratigraphic and structural prospects. From present data it appears that the most likely area for future Eocene discoveries is the west-central and southern San Joaquin Valley. he Santa Maria Basin and western Los Angeles Basin are void of Eocene. The prospects in the Santa Barbara, Coastal, and Santa Clara Valley provinces are limited by reason of apparent lack of porosity.

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