Peridotite - Wikipedia
WEBPeridotite (US: / ˈpɛrɪdoʊˌtaɪt, pəˈrɪdə -/ PERR-ih-doh-tyte, pə-RID-ə-) is a dense, coarse-grained igneous rock consisting mostly of the silicate minerals olivine and pyroxene. Peridotite is ultramafic, as the rock contains less than 45% silica.
Peridotite: Igneous Rock - Pictures, Definition & More - Geology.com
WEBPeridotite is a generic name used for coarse-grained, dark-colored, ultramafic igneous rocks. Peridotites usually contain olivine as their primary mineral , frequently with other mafic minerals such as pyroxenes and amphiboles.
Peridotite | Properties, Composition, Formation - Geology Science
WEBSep 4, 2023 · Peridotite is a type of ultramafic igneous rock that is primarily composed of the mineral olivine, along with smaller amounts of other minerals such as pyroxenes and amphiboles. It is one of the main rock types found in the Earth’s mantle, which is the layer of the Earth that lies below the crust.
Peridotite | Mantle, Igneous, Ultramafic | Britannica
WEBPeridotite is the ultimate source of all chromium ore and naturally occurring diamonds, and of nearly all chrysotile asbestos. It is one of the main host rocks of talc deposits and platinum metals and formerly was a major source of magnesite.
Peridotites: Dense, Coarse-Grained Ultramafic Intrusive Igneous …
WEBJul 12, 2023 · Peridotite is a predominant rock in the Earth’s upper mantle at depths up to 400km, with only a minor yet important part of the Earth’s crust or surface. Depths beyond 400 km will convert olivine to wadsleyite.
Peridotite - Igneous Rocks - Sandatlas
WEBPeridotite. Peridotite is a dark-colored igneous rock consisting mostly of olivine and pyroxene. It is an important rock type because the Earth’s mantle is predominantly composed of it. A classification diagram of ultramafic rocks. Note that neither peridotite nor pyroxenite are single rock types.
Peridotite - New World Encyclopedia
WEBPeridotite is the dominant rock of the Earth's mantle above a depth of about 400 km. Below that depth, olivine is converted to a higher-pressure mineral. Oceanic plates consist of up to about 100 km of peridotite covered by a thin crust.
Peridotites, chromitites and diamonds in ophiolites - Nature
WEBFeb 16, 2021 · In this Review, we discuss the major features of mantle peridotite from both ophiolites and modern oceanic lithosphere to understand the feasibility of tectonic discrimination based on the...
Peridotite - Geology 1501 - ECU
WEBMineral Composition. Pyroxene (Bronzite), Olivine. Tectonic Environment. Upper mantle; sometimes obducted at continent-continent collision zones. Type. Igneous Rock. Texture. Phaneritic (Coarse-grained) Origin.
Peridotite - Encyclopedia.com
WEBMay 8, 2018 · Peridotite is a dark-colored, coarse-grained igneous rock believed by many scientists to be the primary rock of the exterior of Earth's mantle. The rock typically forms in volcanic pipes and is forced to the surface from great depths during a …