Contents: How to Use the Dictionary; The Earth; Geophysics; Geochemistry; Weathering and Erosion; Soils; Streams and Rivers; Ice and Ice Action; Geomorphology and Land Forms; The Oceans; Coasts; Crystallography; Minerals; Igneous Petrology; Sediments; Sedimentary Rocks; Metamorphism; Metamorphic Rocks; Paleontology; Stratigraphy; Geological Time; Structural Geology; Plate Tectonics; Engineering Geology; Oil Geology; Mining Geology; Hydrogeology; Field Work and Laboratory Work; Meteorites; Geology of the Moon. 4 Appendixes. Index. Color illustrations throughout.