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.


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

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  • Alluvium


    Alluvium, the silt, clay, sand, and other material transported and deposited by running water. See more »

  • Artesian Well

    Artesian Well

    Artesian Well, a well in which water rises under its own pressure, without pumping. See more »

  • Cave


    Cave, an underground cavity in the earth's crust. Cavern is a synonymous word, but is sometimes used to indicate a very large cave. See more »

  • Crystal


    Crystal, a solid body formed by atoms, ions, or molecules arranged in a regular, three-dimensional pattern. See more »

  • Dike


    Dike, in geology, a body of diabase or some other igneous rock that, while in the molten state, filled a fissure (crack) in some other rock. See more »

  • Earth Science

    Earth Science

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

  • Geochemistry


    Geochemistry, the application of the science of chemistry to the study of the earth. See more »

  • Geode


    Geode, a hollow, rounded mineral body. A typical geode contains an outer layer of chalcedony, or fine-grained quartz, lined on the inside with crystals of quartz, calcite, or some other mineral. See more »

  • Geodesy


    Geodesy, the science of measuring the shape and size of the earth and of determining the exact location of points on the earth's surface. See more »

  • Hot Spring

    Hot Spring

    Hot Spring, or Thermal Spring, a spring that discharges water warmer than normal body temperature. See more »

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