Digital database of microfossil localities in Alameda and Contra Costa Counties, California
Scientific Investigations Report
2014-5120
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- More information: USGS Index Page
- Document: Report
- Plate: Plate 1 (pdf)
- Additional Report Piece: Additional Report Piece
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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 Much of this data, however, is distributed in unpublished internal reports and memos, and is generally unavailable to the geologic community.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.
Suggested Citation
McDougall, K., Block, D.L., 2014, Digital database of microfossil localities in Alameda and Contra Costa Counties, California: U.S. Geological Survey Scientific Investigations Report 2014-5120, Report: viii, 108 p.; 1 Plate: 36.00 x 20.00 inches; Metadata; Dataset, https://doi.org/10.3133/sir20145120.
ISSN: 2328-0328 (online)
Study Area
| 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 |