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Two New Reports for the Monterey Bay National Marine Sanctuary
The U.S. Geological Survey (USGS) conducted a research project in the Monterey Bay National Marine Sanctuary from 1994 to 2000 to characterize the marine geological environment. Two data publications from this study, USGS Open-File Reports 01-107 and 01-179, are newly available online. The study focused on the broad, flat, continental-shelf areas shallower than 200 m between San Francisco to the north and Point Sur to the south. The study area is approximately 3,000 km2, or 20% of the areal extent of the sanctuary. The project tasks focused on mapping the seafloor, collecting and analyzing sediment samples, and measuring and monitoring oceanographic conditions such as currents, water temperature, and suspended sediment. In Open-File Report 01-107, Kevin Orzech, Wendy Dahl, and Brian Edwards summarize shipboard procedures, subsequent laboratory analyses, and data results from 384 seafloor-sediment samples collected from the continental shelf between Monterey and San Francisco. In Open-File Report 01-179, Florence Wong and Steve Eittreim provide a GIS (geographic information system) compilation of base-map layers, bathymetry and topography, navigational tracklines and fixes, sidescan-sonar mosaics, interpreted seafloor geology, and sample analyses in addition to the ones presented in Open-File Report 01-107. The GIS compilation will also be available as a CD-ROM, to be included in a forthcoming special volume of Marine Geology, "Seafloor Geology and Natural Environment of the Monterey Bay National Marine Sanctuary," edited by Steve Eittreim and Marlene Noble.
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U. S. Department of the Interior | U.S. Geological Survey
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