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Transgressive Contours--Punta Gorda to Point Arena, California

Dates

Publication Date
Start Date
2010-08-09
End Date
2012-09-25

Citation

Beeson, J.W., Johnson, S.Y., and Cochran, S.A., 2019, California State Waters Map Series Data Catalog--Punta Gorda to Point Arena Region, California: U.S. Geological Survey data release, https://doi.org/10.5066/P9PNNI9H.

Summary

This part of DS 781 presents data for the transgressive contours of the Punta Gorda to Point Arena, California, region. The vector data file is included in the "TransgressiveContours_PuntaGordaToPointArena.zip," which is accessible from https://doi.org/10.5066/P9PNNI9H. 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 Punta Gorda and Point Arena was generated from seismic-reflection data collected between 2010 and 2012, and supplemented with geologic structure (fault) information following the methodology of Wong (2012). Water depths determined from bathymetry data were added to the sediment thickness data to provide information [...]

Contacts

Attached Files

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TransgressiveContours_PuntaGordaToPointArena_metadata.faq.html 29.35 KB text/html
TransgressiveContours_PuntaGordaToPointArena_metadata.html 52.68 KB text/html
TransgressiveContours_PuntaGordaToPointArena_metadata.txt 21.06 KB text/plain
Shapefile: TransgressiveContours_PuntaGordaToPointArena.zip
TransgressiveContours_PuntaGordaToPointArena.cpg 5 Bytes
TransgressiveContours_PuntaGordaToPointArena.dbf 18.36 KB
TransgressiveContours_PuntaGordaToPointArena.lyr 7 KB
TransgressiveContours_PuntaGordaToPointArena.prj 403 Bytes
TransgressiveContours_PuntaGordaToPointArena.sbn 6.28 KB
TransgressiveContours_PuntaGordaToPointArena.sbx 428 Bytes
TransgressiveContours_PuntaGordaToPointArena.shp 10.88 MB
TransgressiveContours_PuntaGordaToPointArena.shx 5.14 KB

Purpose

To expand geologic mapping to the seafloor within the California's State Waters, to update coastal geologic mapping, and to contribute to a uniform regional geologic database, which can be used geographic information systems. Additionally, to aid in assessments and mitigation of geologic hazards in the Punta Gorda to Point Arena coastal region and to provide sufficient geologic information for land-use and land-management decisions both onshore and offshore. This information is not intended for navigational purposes.

Additional Information

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