Contemporary Physical Geology |
Contents
THE SCOPE AND SUBSTANCE | 2 |
The Recycling of Earth Materials | 13 |
MINERALS | 23 |
Copyright | |
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abundant accumulation areas asthenosphere atoms basaltic beds beneath calcium called carbon cause cent chemical clay cleavage coal color composed composition contain continental core Courtesy of U.S. craters crust crystals debris density deposits depth developed dolostone dunes earth earth's surface earthquake electrons erosion eruptions fault feldspar Figure flow folds formation fossils fracture geologists glacial glaciers grains granite gravity groundwater heat igneous rocks ions iron Lake lava layers limestone lithosphere located magma magnetic mantle mass mass wasting material melting ment metamorphic rocks meteorites meters mid-ocean ridges minerals moon mountain move movement occur ocean floor olivine origin oxygen particles plagioclase planet plate plate tectonics pressure pyroxene quartz regions relatively result ridges River sand sandstone sea floor sea level sediment sedimentary rocks seismic shale silicate slope soil strata stream structure tectonic temperature tion U.S. Geological Survey uranium valley velocity volcanic water table waves weathering wind zone