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Igneous Rocks and Processes
The Significance of Texture and Color
31 other sections not shown
abundant accumulation amount areas atoms basaltic basins bedrock beds beneath calcite calcium called cause cent chemical clay cleavage color composed composition continental continents core Courtesy crystals debris deposits depth develop dolostone earth earthquake electrons eroded erosion eruptions example fault feldspar Figure floodplains flow folds fossils geologists glacial glaciers gradient grains granite gravity groundwater igneous rocks ions iron lakes lava layers limestone lithosphere located magma magnetic mantle margins mass wasting material melting ment metamorphic rocks meters mica mid-oceanic ridges minerals mountain move movement occur ocean floor oceanic crust olivine origin oxygen particles plagioclase planes plate tectonics pressure produced quartz regions relatively result rhyolite River S-waves sand sandstone sea floor sea level sedi sediment sedimentary rocks seismic shale silicate slope sodium soil strata stream structure subduction temperature termed texture tion transport tures U.S. Geological Survey valley velocity volcanoes water table waves weathering wind zone