1. Coastal and Marine Hazards and Resources
  2. Geoscience Data System
  3. Dataset 41454

Dataset description: Isopachs--Point Conception to Hueneme Canyon, California

This part of DS 781 presents data for the isopachs for the Point Conception to Hueneme Canyon, California, region. The vector data file is included in ""Isopachs_PointConceptionToHuenemeCanyon.zip,"" which is accessible from https://doi.org/10.5066/F7891424. As part of the USGS's California State Waters Mapping Project, a 50-m grid of sediment thickness for the seafloor within the 3-nautical mile limit between Point Conception and Hueneme Canyon was generated from seismic-reflection data collected in 2014 (USGS activity 2014-632-FA) supplemented with outcrop and geologic structure (fault) information following the methodology of Wong (2012). This sediment thickness layer was merged with a previously published sediment thickness grid for the Santa Barbara Channel region (available at https://pubs.usgs.gov/ds/781/SantaBarbaraChannel/data_catalog_SantaBarbaraChannel.html). This polyline shapefile provides the sediment-thickness isopachs to accompany the grid layer. Reference Cited: Wong, F. L., Phillips, E.L., Johnson, S.Y., and Sliter, R.W., 2012, Modeling of depth to base of Last Glacial Maximum and seafloor sediment thickness for the California State Waters Map Series, eastern Santa Barbara Channel, California: U.S. Geological Survey Open-File Report 2012-1161, 16 p. (available at https://pubs.usgs.gov/of/2012/1161/)
Version1
Keywordsseismic reflection methods, stratigraphic thickness, geospatial datasets, maps and atlases, marine geology
Formatshapefile
Amount0.2 MB

Contacts

Contact
Samuel Y Johnson
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Location of materials and files

Public files
Metadatahttps://cmgds.marine.usgs.gov/metadata/pcmsc/SeriesReports/DS_DDS/DS_781/XMLs_on_ScienceBase/F7891424_PtConceptionToHueneme/Isopachs_PointConceptionToHuenemeCanyon_metadata.xml
Outline - Questions and answers - Text - XML

Activities and equipment

ActivityEquipment
S708SCChirp
Edgetech
2014-632-FAsingle channel streamer
Pacific Science Center's streamer