The Earth: An Introduction to Physical Geology |
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accumulation andesitic areas asthenosphere atoms basaltic base level basins batholiths called carbon channel chemical weathering clay cleavage color common composed composition cone contain cooling crater crystals debris deformed deposits depth E. J. Tarbuck earth earth's surface earthquake electrons environment erosion example fault feldspar Figure formation fossil fractures gases geologists glacial glacier grains granite groundwater igneous rocks ions island kilometers lake lava flows layers limestone lithosphere located magma mantle mass wasting material ment metamorphic rocks meters mica molten mountain building move movement occur oceanic crust olivine partial melting particles percent Photo by E. J. planet plate tectonics pressure processes produced pyroclastic quartz radiometric dating regions relatively result ridge River sand sandstone schist sea level sediment sedimentary rocks seismic shale silicate minerals slope sodium soil stream structure subduction temperatures texture thick tion trench ture U.S. Geological Survey valley velocity volcanic activity water table waves zone