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.


Ice, frozen water. (Dry ice is not frozen water, but carbon dioxide in solid form) Under ordinary conditions, water changes to ice at 32 F.

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  • Ignis Fatuus

    Ignis Fatuus

    Ignis Fatuus, a pale, greenish or bluish light sometimes seen hovering over swamps and marshes at night. See more »

  • International Geophysical Year (IGY)

    International Geophysical Year (IGY)

    International Geophysical Year (IGY), a period of extensive study of the earth by geophysicists and other scientists of many countries working in close cooperation. See more »

  • Marshes and Swamps

    Marshes and Swamps

    Marshes and Swamps, areas in which the land is usually covered with shallow water. See more »

  • Metallography


    Metallography, the microscopic study of the structure of metals and their alloys. See more »

  • Mineral Water

    Mineral Water

    Mineral Water, water containing dissolved mineral salts. The mineral salts may occur naturally in the water or they may be added to it. See more »

  • Moho


    Moho, or Mohorovicic Discontinuity, a zone in the earth below which shock waves travel more rapidly than they do above it. See more »

  • Moonstone


    Moonstone, a moderately hard, transparent or translucent gemstone with a pearly or milky luster. See more »

  • Oasis


    Oasis, (plural: oases), a fertile green area in a desert where water is available. See more »

  • 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 »

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