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Geologic logs of geotechnical cores from the subsurface Sacramento-San Joaquin Delta, California

Open-File Report 2014-1127
Prepared in cooperation with the California Department of Water Resources
By: , , , , and 
https://doi.org/10.3133/ofr20141127

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Abstract

This report presents and summarizes descriptive geologic logs of geotechnical cores collected from 2009–12 in the Sacramento–San Joaquin Delta, California, by the California Department of Water Resources. Graphic logs are presented for 1,785.7 ft of retained cores from 56 borehole sites throughout the Sacramento-San Joaquin Delta. Most core sections are from a depth of ~100–200 feet. Cores primarily contain mud, silt, and sand lithologies. Tephra (volcanic ash and pumice), paleosols, and gravels are also documented in some core sections. Geologic observations contained in the core logs in this report provide stratigraphic context for subsequent sampling and data for future chronostratigraphic subsurface correlations.

Suggested Citation

Maier, K., Ponti, D.J., Tinsley, J., Gatti, E., and Pagenkopp, M., 2014, Geologic logs of geotechnical cores from the subsurface Sacramento-San Joaquin Delta, California: U.S. Geological Survey Open-File Report 2014-1127, Report: iv, 16 p.; Appendix, https://doi.org/10.3133/ofr20141127.

ISSN: 2331-1258 (online)

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title Geologic logs of geotechnical cores from the subsurface Sacramento-San Joaquin Delta, California
Series title Open-File Report
Series number 2014-1127
DOI 10.3133/ofr20141127
Year Published 2014
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Earthquake Science Center
Description Report: iv, 16 p.; Appendix
Country United States
State California
Other Geospatial Sacramento-San Joaquin Delta
Online Only (Y/N) Y
Additional Online Files (Y/N) Y
Additional publication details