Open-File Report 2014–1127
AbstractThis 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. |
First posted July 25, 2014 For additional information, contact: Part or all of this report is presented in Portable Document Format (PDF). For best results viewing and printing PDF documents, it is recommended that you download the documents to your computer and open them with Adobe Reader. PDF documents opened from your browser may not display or print as intended. Download the latest version of Adobe Reader, free of charge. More information about viewing, downloading, and printing report files can be found here. |
Maier, K.L., Ponti, D.J, Tinsley, J.C., Gatti, E., 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, 10 p., https://dx.doi.org/10.3133/ofr20141127.
ISSN 2331-1258 (online)
Abstract
Introduction
Methodology
Discussion
Acknowledgements
References Cited
Figures
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Appendix