In 'Texas Rocks and Minerals: An Amateur's Guide,' Roselle M. Girard provides a comprehensive overview of the geology of Texas, focusing on the various rocks an

Earth's outer crust Geologists Time and rock units Geologic map What are rocks and minerals? Chemical elements Minerals Rocks Igneous rocks Extrusive or volcani

Geo-Texas succeeds in bringing together astronomy, geology, meteorology, oceanography, and environmental studies in a highly informative, one-of-a-kind guide to