Geology terms helps us to explain the phenomena that occurs above, below and on the surface of Earth. These terms can help you gain a better understanding of geology. Learn more geology terms here.


Earth Science

Earth Science, a general term for the fields of study that deal with the earth as a physical object.

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  • Ore

    Ore, any naturally occuring material in the earth's crust containing one or more economically important minerals that can be profitably extracted. See more »

  • Permafrost

    Permafrost, a layer of permanently frozen ground in areas where temperatures are too low to permit complete thawing. See more »

  • Seismograph

    Seismograph, an instrument designed to measure and record vibrations in the earth. See more »

  • Stalactites and Stalagmites
    Stalactites and Stalagmites

    Stalactites and Stalagmites, , formations often found in limestone caves. Stalactites hang from a cave's ceiling and frequently resemble icicles, although some have a flatter, curtain-like appearance. See more »

  • Stromatolite

    Stromatolite, a natural structure consisting of alternate layers of hardened sediment and the remains of bluegreen algae. See more »

  • Tektite

    Tektite, a small object of natural glass whose mineral composition is different from that of glass formed by volcanic activity on the earth. See more »

  • United States Geological Survey
    United States Geological Survey

    United States Geological Survey, an agency of the Department of the Interior. Its main functions are to appraise the nation's mineral and water resources and to survey and map the country's physical features. See more »

  • Weathering

    Weathering, in geology, the natural decay and disintegration of rocks at or near the surface of the earth. See more »

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