High-Resolution Seismic-Reflection and Marine Magnetic Data Along the Hosgri Fault Zone, Central California
Open-File Report
2009-1100
2009, revised 2010
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Abstract
The U.S. Geological Survey (USGS) collected high-resolution shallow seismic-reflection and marine magnetic data in June 2008 in the offshore areas between the towns of Cayucos and Pismo Beach, Calif., from the nearshore (~6-m depth) to just west of the Hosgri Fault Zone (~200-m depth). These data are in support of the California State Waters Mapping Program and the Cooperative Research and Development Agreement (CRADA) between the Pacific Gas & Electric Co. and the U.S. Geological Survey.
Seismic-reflection and marine magnetic data were acquired aboard the R/V Parke Snavely, using a SIG 2Mille minisparker seismic source and a Geometrics G882 cesium-vapor marine magnetometer. More than 550 km of seismic and marine magnetic data was collected simultaneously along shore-perpendicular transects spaced 800 m apart, with an additional 220 km of marine magnetometer data collected across the Hosgri Fault Zone, resulting in spacing locally as smallas 400 m.
This report includes maps of the seismic-survey sections, linked to Google Earth software, and digital data files showing images of each transect in SEG-Y, JPEG, and TIFF formats, as well as preliminary gridded marine-magnetic-anomaly and residual-magnetic-anomaly (shallow magnetic source) maps.
Suggested Citation
Sliter, R.W., Triezenberg, P., Hart, P.E., Watt, J.T., Johnson, S.Y., Scheirer, D., 2009, High-Resolution Seismic-Reflection and Marine Magnetic Data Along the Hosgri Fault Zone, Central California: U.S. Geological Survey Open-File Report 2009-1100, Available online only, https://doi.org/10.3133/ofr20091100.
ISSN: 2331-1258 (online)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | High-Resolution Seismic-Reflection and Marine Magnetic Data Along the Hosgri Fault Zone, Central California |
| Series title | Open-File Report |
| Series number | 2009-1100 |
| DOI | 10.3133/ofr20091100 |
| Year Published | 2009 |
| Language | ENGLISH |
| Publisher | U.S. Geological Survey |
| Contributing office(s) | Western Coastal and Marine Geology |
| Description | Available online only |
| Time Range Start | 2008-06-10 |
| Time Range End | 2008-06-26 |
| Online Only (Y/N) | Y |
| Additional Online Files (Y/N) | Y |