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  1. Geology - Wikipedia

    Geology describes the structure of the Earth on and beneath its surface and the processes that have shaped that structure. Geologists study the mineralogical composition of rocks in order to get insight …

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

    Jan 29, 2026 · Geologic history provides a conceptual framework and overview of the evolution of the Earth. An early development of the subject was stratigraphy, the study of order and sequence in …

  3. GEOLOGICAL Definition & Meaning - Merriam-Webster

    The meaning of GEOLOGICAL is of, relating to, or based on geology.

  4. USGS.gov | Science for a changing world

    4 days ago · Our science provides clear, reliable data that protects lives and property, supports energy and mineral decisions, strengthens water infrastructure, and promotes economic growth.

  5. What is Geology ? - Introduction, Subdivisions and History of Earth

    Nov 23, 2025 · Geology is the scientific study of the Earth, its composition, structure, processes, and history. It is a broad field that encompasses a wide range of topics related to the Earth’s physical and …

  6. Geology and Earth Science News, Articles, Photos, Maps and More

    Geology News including: Earth science, mining, gemology, maps, metals, archaeology, and more. Petrified Wood is a fossil that forms when silica replaces and infills the cavities of wood. 100+ Gems …

  7. Geological - definition of geological by The Free Dictionary

    pl. ge·ol·o·gies 1. The scientific study of the origin, history, and structure of the earth. 2. The structure of a specific region of the earth's crust....

  8. GEOLOGICAL | English meaning - Cambridge Dictionary

    GEOLOGICAL definition: 1. relating to geology, or to the geology of a particular area or place: 2. relating to geology…. Learn more.

  9. Geology | U.S. Geological Survey - USGS.gov

    Earth’s tectonic plates rest upon the asthenosphere, the upper layer of Earth’s mantle. Over short timescales, the mantle behaves like a solid. If you could reach down and grab a handful of mantle …

  10. What is Geology? - What does a Geologist do? - Geology.com

    Geologists study Earth processes: Many processes such as landslides, earthquakes, floods, and volcanic eruptions can be hazardous to people. Geologists work to understand these processes well …