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Open-File Report 2016-1058

High-Resolution Seismic-Reflection Data from Offshore of Northern California—Bolinas to Sea Ranch

By Ray W. Sliter,1 Samuel Y. Johnson,1 John L. Chin,1 Parker Allwardt,1 Jeffrey Beeson,2 and Peter J. Triezenberg1

1U.S. Geological Survey
2Oregon State University


The U.S. Geological Survey collected high-resolution seismic-reflection data in September 2009, on survey S-8-09-NC, offshore of northern California between Bolinas and Sea Ranch.

The survey area spans about 125 km of California’s coast and extends around Point Reyes. Data were collected aboard the U.S. Geological Survey R/V Parke Snavely. Cumulatively, ~1,150 km of seismic-reflection data were acquired using a SIG 2mille minisparker. Subbottom acoustic depth of penetration spanned tens to several hundred meters and varied by location and underlying sediments and rock types.

This report includes maps and a navigation file of the surveyed transects, utilizing Google Earth™ software, as well as digital data files showing images of each transect in SEG-Y and JPEG formats. The images of bedrock, sediment deposits, and tectonic structure provide geologic information that is essential to hazard assessment, regional sediment management, and coastal and marine spatial planning at Federal, State and local levels. This information is also valuable for future research on the geomorphic, sedimentary, tectonic, and climatic record of central California.

For more information, contact the PCMSC.

Suggested citation:
Sliter, R.W., Johnson, S.Y., Chin, J.L., Allwardt, P., Beeson, J., and Triezenberg, P.J., 2016, High-resolution seismic-reflection data from offshore of northern California—Bolinas to Sea Ranch: U.S. Geological Survey Open-File Report 2016–1058,

U.S. Department of the Interior

U.S. Geological Survey
Suzette M. Kimball, Director

Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner.

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