1California Division of Mines and Geology
801 K Street, MS-12-31
Sacramento, CA 95814
Telephone: (916) 324-7380
Fax: (916) 322-4765
e-mail: dwagner@consrv.ca.gov
2Moss Landing Marine Laboratory
Moss Landing, CA
A new geologic map of the Monterey 1:100,000 scale quadrangle and Monterey Bay is being compiled by the California Division of Mines and Geology and Moss Landing Marine Laboratory. The map is a digital database which, for the most part, was digitized at 1:24,000 scale using ALACARTE, a menu-driven module developed by the U.S. Geological Survey running on Arc/Info GIS software. This project was supported in part by the U.S. Geological Survey through its National Cooperative Geologic Mapping program, STATEMAP component.
The map was prepared using the technique described by Wagner at DMT '97. Onshore, existing geologic maps, mostly at 1:24,000 scale were digitized and tiled together to make up the 1:100,000 scale map. An earlier analog version of the map was used as a guide to correct boundary problems between quadrangles. A DEM with 30 meter resolution was used for a shaded relief basemap using the technique described by Ralph Haugerud and Harvey Greenberg at DMT '98.
Offshore, a wealth of new geologic information was available. These new data were overlain on new high resolution bathymetry acquired by the Monterey Bay Research Institute converted to a shaded bathymetric base.
Wagner, David L., 1997, Digital mapping techniques employed by the California Division of Mines and Geology, in David R. Soller, ed., Proceedings of a workshop on digital mapping techniques: Methods for geologic map data capture, management, and publication: U.S. Geological Survey Open-File Report 97-269, p. 35-38.
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