Geologic and bathymetric reconnaissance overview of the San Pedro shelf region, southern California
Open-File Report
2004-1049
By: Stephen C. Wolf and Christina E. Gutmacher
Links
- More information: USGS Index Page (html)
- NGMDB Index Page: National Geologic Map Database Index Page
- Download citation as: RIS | Dublin Core
Abstract
This report presents a series of maps that describe the bathymetry and late Quaternary geology of the San Pedro shelf area as interpreted from seismic-reflection profiles and 3.5-kHz and multibeam bathymetric data. Some of the seismic-reflection profiles were collected with Uniboom and 120-kJ sparker during surveys conducted by the U.S. Geological Survey (USGS) in 1973 (K-2-73-SC), 1978 (S-2-78-SC), and 1979 (S-2a-79-SC). The remaining seismic-reflection profiles were collected in 2000 using Geopulse boomer and minisparker during USGS cruise A-1-00-SC. The report consists of seven oversized sheets:
1. Map of 1978 and 1979 uniboom seismic-reflection and 3.5-kHz tracklines used to map faults and folds on San Pedro Shelf.
2. Maps of multibeam shaded bathymetric relief with faults and folds, and bathymetric contours.
3. Isopach map of unconsolidated sediment, seismic-reflection profile across the San Pedro shelf, seismic-reflection profile across San Gabriel paleo-valley.
4. Seismic-reflection profiles across the Palos Verdes Fault Zone.
5. Geologic map and samples of Uniboom and 120-kJ sparker seismic-reflection profiles used to make the map.
6. Map showing thickness of uppermost (Holocene?) sediment layer.
7. Map of San Gabriel Canyon paleo-valley and associated drainage basins.
Suggested Citation
Wolf, S.C., and Gutmacher, C.E., 2004, Geologic and bathymetric reconnaissance overview of the San Pedro shelf region, southern California: U.S. Geological Survey Open-File Report 2004-1049, HTML Document, https://doi.org/10.3133/ofr20041049.
ISSN: 2331-1258 (online)
Study Area
| Publication type | Report |
|---|---|
| Publication Subtype | USGS Numbered Series |
| Title | Geologic and bathymetric reconnaissance overview of the San Pedro shelf region, southern California |
| Series title | Open-File Report |
| Series number | 2004-1049 |
| DOI | 10.3133/ofr20041049 |
| Year Published | 2004 |
| Language | English |
| Publisher | U.S. Geological Survey |
| Publisher location | Reston, VA |
| Contributing office(s) | Coastal and Marine Geology Program |
| Description | HTML Document |
| Country | United States |
| State | California |