Name: Isopachs_BolinasToPescadero

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Description: This part of DS 781 presents data for the isopachs for the Bolinas to Pescadero, California, region. The vector data file is included in "Isopachs_BolinasToPescadero.zip," which is accessible from http://pubs.usgs.gov/ds/781/BolinasToPescadero/data_catalog_BolinasToPescadero.html. These isopachs for the Bolinas to Pescadero regionare published in Scientific Investigations Map 3306, "California State Waters Map Series--Offshore San Gregorio, California". In addition, these isopachs will be published in five future California State Waters Map Series Open-File Reports of the region (namely, the Offshore of San Francisco, Offshore of Pacifica, Offshore of Half Moon Bay, Offshore of San Gregorio, and Offshore of Pigeon Point map areas). As part of the USGS's California Seafloor Mapping Program, a 50-m grid ofsediment thickness for the seafloor within the 3-nautical-mile limit of California's State Waters between offshore Offshore Bolinas and offshore Pescadero was generated from seismic-reflection data collected in 2010 (USGS cruise S-15-10-NC) and 2007 (USGS cruise F-2-07-NC) supplemented with outcrop and geologic structure from sheet 8 and 10, SIM 3306. The resulting grid covers an area of approximately 600 sq km. The volume of sediment accumulated since the Last Glacial Maximum is approximately 9,000 million cubic meters. Contours at 2.5-meter intervals were derived from this grid.

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