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Isopachs--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 isopachs of the Punta Gorda to Point Arena, California, region. The vector data file is included in the "Isopachs_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). 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 [...]

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Attached Files

Click on title to download individual files attached to this item.

Shapefile: Isopachs_PuntaGordaToPointArena.zip
Isopachs_PuntaGordaToPointArena.cpg 5 Bytes
Isopachs_PuntaGordaToPointArena.dbf 37.82 KB
Isopachs_PuntaGordaToPointArena.lyr 7 KB
Isopachs_PuntaGordaToPointArena.prj 403 Bytes
Isopachs_PuntaGordaToPointArena.sbn 12.75 KB
Isopachs_PuntaGordaToPointArena.sbx 692 Bytes
Isopachs_PuntaGordaToPointArena.shp 15.14 MB
Isopachs_PuntaGordaToPointArena.shx 10.5 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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