Geology, Earth Science, and Oceanography References

• National Geophysical Data Center (NGDC)
• US Geological Survey
• National Earthquake Information Center
• Operational Significant Event Imagery
• Year of the Ocean (NOAA)
• Space Weather Bureau (NASA-MSFC)
• Water Resources of Massachusetts (USGS)
• Volcano World
• Global Volcanism Program (Smithsonian Institution
• The Story of Plate Tectonics (USGS)
• Bob's Rock Shop for Rockhounds
• Introduction to Crystallography and Mineral Crystal Systems
• National Mapping Information
• Topographic Maps
• GPS Resources
• Ocean Surface Currents