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Digital database of microfossil localities in Alameda and Contra Costa Counties, California

Scientific Investigations Report 2014-5120
By:  and 
https://doi.org/10.3133/sir20145120

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Abstract

The eastern San Francisco Bay region (Contra Costa and Alameda Counties, California) is a geologically complex area divided by faults into a suite of tectonic blocks. Each block contains a unique stratigraphic sequence of Tertiary sediments that in most blocks unconformably overlie Mesozoic sediments. Age and environmental interpretations based on analysis of microfossil assemblages are key factors in interpreting geologic history, structure, and correlation of each block. Much of this data, however, is distributed in unpublished internal reports and memos, and is generally unavailable to the geologic community. In this report the U.S. Geological Survey microfossil data from the Tertiary sediments of Alameda and Contra Costa counties are analyzed and presented in a digital database, which provides a user-friendly summary of the micropaleontologic data, locality information, and biostratigraphic and ecologic interpretations.

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Publication type Report
Publication Subtype USGS Numbered Series
Title Digital database of microfossil localities in Alameda and Contra Costa Counties, California
Series title Scientific Investigations Report
Series number 2014-5120
DOI 10.3133/sir20145120
Year Published 2014
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Geology, Minerals, Energy, and Geophysics Science Center, San Francisco Bay-Delta
Description Report: viii, 108 p.; 1 Plate: 36.00 x 20.00 inches; Metadata; Dataset
Country United States
State California
County Alameda County;Contra Costa County
Online Only (Y/N) Y
Google Analytic Metrics Metrics page
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