Any of a set of mineral species which, although falling into different systems (orthorhombic, monoclinic, and triclinic), are closely related in form and structure. They are metasilicates of calcium, magnesium, and iron with manganese, and less often with sodium, potassium, zirconium, and fluorine. … Meer weergeven This glossary of geology is a list of definitions of terms and concepts relevant to geology, its sub-disciplines, and related fields. For other terms related to the Earth sciences, see Glossary of geography terms. Meer weergeven calcareous Formed from or containing a high proportion of calcium carbonate in the form of calcite or aragonite, used of a sediment, sedimentary rock, or soil type. calcite A … Meer weergeven dacite An igneous, volcanic rock with a high iron content. It is an extrusive rock of the same general composition as andesite, … Meer weergeven facies The sum of the lithological and faunal characters of a sediment is its facies. Lithological facies involves composition, grain size, texture, colour, as well as such … Meer weergeven abyssal plain Flat or very gently sloping areas of the deep ocean basin floor. absolute dating The process of determining … Meer weergeven banded iron formation A distinctive type of rock often found in primordial sedimentary rocks. basalt A fine-grained, mafic igneous rock composed predominantly of ferromagnesian minerals and with lesser amounts of calcium-rich plagioclase feldspar. … Meer weergeven earthquake eclogite A generally coarse- to medium-grained pyroxene in which are set red garnets. The colour is pistachio green when fresh, but mottled with red when weathered. … Meer weergeven WebGeological oceanography (marine geology) Paleoceanography; Lithosphere . Geology. Economic geology; Engineering geology; Environmental geology; Forensic geology; …
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WebDiscovering Geology — Fossils and geological time Share this article Facebook Twitter Pinterest WhatsApp Email Copy Link The BGS geological timechart provides colourful reference material for use in schools, colleges and at home, setting out the geological timescale and geochronological terms we use at BGS. Webgeological; geologically; geologist; geology; geomorphic; gully erosion; henge; Holocene; hoodoo; hydrothermal; hydrothermally; hypsometric; hypsometry; interbed; Jurassic; … chu grenoble hopital michallon
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Web13 dec. 2024 · Glossary of Geologic Terms On This Page Navigation Introduction This glossary contains brief definitions of technical geologic terms prepared by the NPS … Web2 sep. 2024 · Basin. A topographic or structural low area that generally receives thicker deposits of sediments than adjacent areas; the low areas tend to sink more readily, partly … WebGeology Periods Word List: Precambrian, Azoic, Archeozoic, Proterozoic, Paleozoic, Cambrian, Ordovician, Silvrian, Devonian, Carboniferous, Mississippian, Pennsylvanian, … chug puppy breeders