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  1. Geology | Definition, Examples, Rocks, Study, Importance, & Facts ...

    Nov 12, 2025 · Geology, the fields of study concerned with the solid Earth. Included are sciences such as mineralogy, geodesy, and stratigraphy. Geology also explores geologic history, which provides a …

  2. Geology Definition & Meaning | Britannica Dictionary

    GEOLOGY meaning: 1 : a science that studies rocks, layers of soil, etc., in order to learn about the history of the Earth and its life; 2 : the rocks, land, processes of land formation, etc., of a particular area

  3. geology - Students | Britannica Kids | Homework Help

    What Is Geology? Geology is one of several related subjects commonly grouped as the Earth sciences, or geoscience. Geologists are Earth scientists concerned primarily with rocks and materials derived …

  4. geology - Kids | Britannica Kids | Homework Help

    Geology is the study of the physical features and history of Earth. Scientists who work in geology are called geologists. Geology is an important science for many reasons. It…

  5. Geology and its subdisciplines | Britannica

    geology, Scientific study of the Earth, including its composition, structure, physical properties, and history.

  6. Dike | Volcanic, Intrusive & Magma | Britannica

    Dike, in geology, tabular or sheetlike igneous body that is often oriented vertically or steeply inclined to the bedding of preexisting intruded rocks; similar bodies oriented parallel to the bedding of the …

  7. Structural geology | Folds, Faults & Joints | Britannica

    Structural geology, scientific discipline that is concerned with rock deformation on both a large and a small scale. Its scope of study is vast, ranging from submicroscopic lattice defects in crystals to fault …

  8. Geology - Surface Features, Processes, Earth | Britannica

    Nov 12, 2025 · Geology - Surface Features, Processes, Earth: Geomorphology is literally the study of the form or shape of the Earth, but it deals principally with the topographical features of the Earth’s …

  9. Rock | Definition, Characteristics, Formation, Cycle, Classification ...

    Nov 25, 2025 · Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form …

  10. Erosion | Description, Causes, Facts, & Types | Britannica

    Oct 28, 2025 · A narrow and somewhat limiting definition of erosion excludes the transport of eroded material by natural agencies, but the exclusion of the transport phenomenon makes the distinction …