المصدر: Information Bulletin (00497282). Jul2006, Vol. 37 Issue 3, p164-164. 1/3p.

مصطلحات موضوعية: *Posters, Ocean bottom

مصطلحات جغرافية: San Francisco Bay Area (Calif.), California

الشركة/الكيان: Geological Survey (U.S.)

مستخلص: The article reports on a poster showing views of the sea floor in west-central San Francisco Bay, California around Alcatraz and Angel Islands, underneath the Golden Gate Bridge, and through its entrance from the Pacific Ocean, released by the U.S. Geological Survey (USGS). The sea floor is portrayed as a shaded-relief surface generated from multibeam data while the land regions are portrayed by USGS digital orthophotographs overlaid on USGS digital elevation models.

المصدر: Information Bulletin (00497282). Jul2006, Vol. 37 Issue 3, p163-163. 1/4p.

مصطلحات موضوعية: Geological mapping, Geological maps

مصطلحات جغرافية: San Francisco Bay Area (Calif.), California

الشركة/الكيان: Geological Survey (U.S.)

مستخلص: The article reports on a geologic map of the San Francisco Bay Area, California, produced by the U.S. Geological Survey in cooperation with the California Geological Survey. The map is designed to provide a look at the geologic history of the region for the 100th anniversary of the 1906 San Francisco earthquake.

المصدر: Information Bulletin (00497282). Jul2006, Vol. 37 Issue 3, p163-163. 1/2p.

مصطلحات موضوعية: *Maps, Government report writing, Geological surveys, California. Geological Survey

مصطلحات جغرافية: San Francisco Bay Area (Calif.), California

الشركة/الكيان: Geological Survey (U.S.)

مستخلص: The article reports on a government report containing digital geologic hazard maps of the San Francisco Bay area, California announced by the U.S. Geological Survey and the California Geological Survey. It was developed to provide the public, land-use planners, utilities and lifeline owners, and emergency response officials, new and better resources to assess their risk from earthquake damage.