An international journal on the geophysical, geochemical, petrological, economic and environmental aspects of volcanology and geothermal research. 20000910 National Geophysical Data Center National centre supporting environmental research and offering extensive public domain data. World Data Center A for Solid Earth Geophysics. Headings include ecosystems, education, environment, gravity, heatflow, hotsprings, magnetics, natural hazards and topography. The Geology Library has more than 100,000 volumes and 46,000 geologic maps, including all publications of the US Geological Survey, publications of most state geological surveys, and those of many foreign countries.
Regional emphasis is on the Southwestern United States, Texas, and Mexico.