Dataset description: Transgressive Contours-Point Sur to Point Arguello, California

This part of DS 781 presents data for the transgressive contours of the Point Sur to Point Arguello, California, region. The vector data file is included in the "TransgressiveContours_PointSurToPointArguello.zip," which is accessible from https://doi.org/10.5066/P97CZ0T7. 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 Sur and Point Arguello was generated from seismic-reflection data collected between 2008 and 2014, and supplemented with geologic structure (fault and fold) information following the methodology of Wong (2012). Water depths determined from bathymetry data were added to the sediment thickness data to provide information on the depth to base of the post-LGM unit. 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/).

Version	1
Keywords	seismic reflection methods, stratigraphic thickness, geospatial datasets, maps and atlases, marine geology
Data types	Geology
Format	shapefile
Amount	3.4 MB

Contacts

Contact	Samuel Y Johnson PCMSC_data@usgs.gov

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Location of materials and files

Public files	https://www.sciencebase.gov/catalog/file/get/5c9138d8e4b09388245480de https://doi.org/10.5066/P97CZ0T7 https://pubs.usgs.gov/ds/781/
Metadata	https://cmgds.marine.usgs.gov/metadata/pcmsc/SeriesReports/DS_DDS/DS_781/XMLs_on_ScienceBase/P97CZ0T7_PtSurToPtArguello/TransgressiveContours_PointSurToPointArguello_metadata.xml Outline - Questions and answers - Text - XML

Activities and equipment

Activity	Equipment
S609SC	Minisparker
S608SC	sparker shallow-penetrating continuous seismic profiling (3.5-khz system, 150-joule sparker)
B0511CC	Mini-sparker
2014-632-FA	single channel streamer Pacific Science Center's streamer