Geology

Smithsonian Mineral Gallery Smithsonian National Museum of Natural History

Smithsonian Gem Gallery Smithsonian National Museum of Natural History

Streetcar 2 Subduction American Geological Union - A collection of geological field trips that take users to some of the world-class geological sites of the San Francisco Bay Area.

US Geological Survey

• Recent Earthquakes Map
• The Science of Earthquakes
• The San Andreas and Other Bay Area Faults

Woods Hole Oceanographic Institution

Strike and Dip - Geoscience Virtual Field Trips Penn State College of Earth and Mineral Sciences

Ocean Salinity NASA Science

Currents Tutorial National Ocean Service, NOAA

Why Does the Ocean Have Waves? National Ocean Service, NOAA

Currents, Waves and Tides Smithsonian Ocean

Bathymetric Maps Ocean Explorer, NOAA

World of Rivers Map National Geographic

Geology Glossary Cambridge University

American Geophysical Union

European Geosciences Union

Geological Society of America

Geology.com

National Geographic Magazine

UNESCO (United Nations Educational, Scientific and Cultural Organization)

Mineralogy Database David Barthelmy webmineral.com