Geology | Definition, Examples, Rocks, Study, Importance, & Facts ...
2025年1月9日 · 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 conceptual framework and overview of Earth’s evolution.
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 answers questions about how Earth came to have its present shape and form. It is useful for finding important materials in Earth’s crust, such as oil.
geology - Students | Britannica Kids | Homework Help
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 from rocks that make up the outer part of the Earth.
Geology - Earth Composition, Rocks, Minerals | Britannica
2025年1月9日 · Geology - Earth Composition, Rocks, Minerals: As a discipline, mineralogy has had close historical ties with geology. Minerals as basic constituents of rocks and ore deposits are obviously an integral aspect of geology.
Geology - Earth History, Stratigraphy, Plate Tectonics | Britannica
2025年1月9日 · One of the major objectives of geology is to establish the history of the Earth from its inception to the present. The most important evidence from which geologic history can be inferred is provided by the geometric relationships of rocks with respect to each other, particularly layered rocks, or strata , the relative ages of which may be ...
Geology - Geochemistry, Rocks, Minerals | Britannica
2025年1月9日 · Geochemistry is broadly concerned with the application of chemistry to virtually all aspects of geology. Inasmuch as the Earth is composed of the chemical elements, all geologic materials and most geologic processes can be regarded from a chemical point of view.
Physical geology | science | Britannica
physical geology, scientific discipline that is concerned with all aspects of the Earth’s structure, composition, physical properties, constituent rocks and minerals, and surficial features.
Geology - Structure, Rocks, Minerals | Britannica
2025年1月9日 · Geology - Structure, Rocks, Minerals: The scientific objective of geodesy is to determine the size and shape of the Earth. The practical role of geodesy is to provide a network of accurately surveyed points on the Earth’s surface, the vertical elevations and geographic positions of which are precisely known and, in turn, may be incorporated ...
Geology and its subdisciplines | Britannica
geology, Scientific study of the Earth, including its composition, structure, physical properties, and history. Geology is commonly divided into subdisciplines concerned with the chemical makeup of the Earth, including the study of minerals (mineralogy) and rocks (petrology); the structure of the Earth (structural geology) and volcanic ...
Rock | Definition, Characteristics, Formation, Cycle, Classification ...
2024年12月7日 · 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 recognizable and mappable volumes. The three major classes of rock are igneous, sedimentary, and metamorphic rock.