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- Xenolith abstract "A xenolith (Ancient Greek: "foreign rock") is a rock fragment which becomes enveloped in a larger rock during the latter's development and hardening. In geology, the term xenolith is almost exclusively used to describe inclusions in igneous rock during magma emplacement and eruption. Xenoliths may be engulfed along the margins of a magma chamber, torn loose from the walls of an erupting lava conduit or explosive diatreme or picked up along the base of a flowing body of lava on the Earth's surface. A xenocryst is an individual foreign crystal included within an igneous body. Examples of xenocrysts are quartz crystals in a silica-deficient lava and diamonds within kimberlite diatremes.Although the term xenolith is most commonly associated with igneous inclusions, a broad definition could include rock fragments which have become encased in sedimentary rock. Xenoliths are sometimes found in recovered meteorites.To be considered a true xenolith, the included rock must be identifiably different from the rock in which it is enveloped; an included rock of similar type is called an autolith or a cognate inclusion.Xenoliths and xenocrysts provide important information about the composition of the otherwise inaccessible mantle. Basalts, kimberlites, lamproites and lamprophyres, which have their source in the upper mantle, often contain fragments and crystals assumed to be a part of the originating mantle mineralogy. Xenoliths of dunite, peridotite and spinel lherzolite in basaltic lava flows are one example. Kimberlites contain, in addition to diamond xenocrysts, fragments of lherzolites of varying composition. The aluminium-bearing minerals of these fragments provide clues to the depth of origin. Calcic plagioclase is stable to 25 km depth. Between 25 km and about 60 km, spinel is the stable aluminium phase. At depths greater than about 60 km, dense garnet becomes the aluminium-bearing mineral. Some kimberlites contain xenoliths of eclogite, which is considered to be the high-pressure metamorphic product of oceanic basaltic crust, as it descends into the mantle along subduction zones (Blatt, 1996).The large scale inclusion of foreign rock strata at the margins of an igneous intrusion is called a roof pendant.".
- Xenolith thumbnail XenolithSierra.JPG?width=300.
- Xenolith wikiPageID "545531".
- Xenolith wikiPageLength "3901".
- Xenolith wikiPageOutDegree "42".
- Xenolith wikiPageRevisionID "673256176".
- Xenolith wikiPageWikiLink Aluminium.
- Xenolith wikiPageWikiLink Baltimore_Gneiss.
- Xenolith wikiPageWikiLink Basalt.
- Xenolith wikiPageWikiLink Category:Petrology.
- Xenolith wikiPageWikiLink Diamond.
- Xenolith wikiPageWikiLink Diatreme.
- Xenolith wikiPageWikiLink Dunite.
- Xenolith wikiPageWikiLink Eclogite.
- Xenolith wikiPageWikiLink Garnet.
- Xenolith wikiPageWikiLink Geology.
- Xenolith wikiPageWikiLink Granite,_Maryland.
- Xenolith wikiPageWikiLink Granodiorite.
- Xenolith wikiPageWikiLink Guilford_Quartz_Monzonite.
- Xenolith wikiPageWikiLink Igneous_rock.
- Xenolith wikiPageWikiLink Kimberlite.
- Xenolith wikiPageWikiLink Lamproite.
- Xenolith wikiPageWikiLink Lamprophyre.
- Xenolith wikiPageWikiLink Lava.
- Xenolith wikiPageWikiLink Lherzolite.
- Xenolith wikiPageWikiLink Little_Cottonwood_Canyon.
- Xenolith wikiPageWikiLink Magma.
- Xenolith wikiPageWikiLink Mantle_(geology).
- Xenolith wikiPageWikiLink Meteorite.
- Xenolith wikiPageWikiLink Meteorites.
- Xenolith wikiPageWikiLink Nephelinite.
- Xenolith wikiPageWikiLink Peridotite.
- Xenolith wikiPageWikiLink Plagioclase.
- Xenolith wikiPageWikiLink Quartz.
- Xenolith wikiPageWikiLink Rock_(geology).
- Xenolith wikiPageWikiLink Roof_pendant.
- Xenolith wikiPageWikiLink Sedimentary_rock.
- Xenolith wikiPageWikiLink Spinel.
- Xenolith wikiPageWikiLink Subduction.
- Xenolith wikiPageWikiLink Subduction_zone.
- Xenolith wikiPageWikiLink Volcanic_bomb.
- Xenolith wikiPageWikiLink File:Iddingsite.JPG.
- Xenolith wikiPageWikiLink File:XenolithSierra.JPG.
- Xenolith wikiPageWikiLinkText "Xenolith".
- Xenolith wikiPageWikiLinkText "clasts".
- Xenolith wikiPageWikiLinkText "enclaves".
- Xenolith wikiPageWikiLinkText "xenocrysts".
- Xenolith wikiPageWikiLinkText "xenolith".
- Xenolith hasPhotoCollection Xenolith.
- Xenolith wikiPageUsesTemplate Template:About.
- Xenolith wikiPageUsesTemplate Template:Authority_control.
- Xenolith wikiPageUsesTemplate Template:Commons_category.
- Xenolith wikiPageUsesTemplate Template:Lang-grc.
- Xenolith subject Category:Petrology.
- Xenolith hypernym Fragment.
- Xenolith type Article.
- Xenolith type Drug.
- Xenolith type Article.
- Xenolith type Subfield.
- Xenolith type Thing.
- Xenolith comment "A xenolith (Ancient Greek: "foreign rock") is a rock fragment which becomes enveloped in a larger rock during the latter's development and hardening. In geology, the term xenolith is almost exclusively used to describe inclusions in igneous rock during magma emplacement and eruption.".
- Xenolith label "Xenolith".
- Xenolith sameAs صخر_دخيل.
- Xenolith sameAs Xenòlit.
- Xenolith sameAs Xenolit.
- Xenolith sameAs Xenolith.
- Xenolith sameAs Ksenolito.
- Xenolith sameAs Xenolito.
- Xenolith sameAs Ksenoliit.
- Xenolith sameAs بیگانهسنگ.
- Xenolith sameAs Xénolithe.
- Xenolith sameAs קסנולית.
- Xenolith sameAs Framandsteinn.
- Xenolith sameAs Xenolite.
- Xenolith sameAs 捕獲岩.
- Xenolith sameAs Ksenolitas.
- Xenolith sameAs Xenolit.
- Xenolith sameAs Xenolith.
- Xenolith sameAs Xenoliet.
- Xenolith sameAs Xenolitt.
- Xenolith sameAs Ksenolit.
- Xenolith sameAs Xenólito.
- Xenolith sameAs m.02nm8m.
- Xenolith sameAs Ксенолит.
- Xenolith sameAs Xenolith.
- Xenolith sameAs Xenolit.
- Xenolith sameAs Ksenolit.
- Xenolith sameAs Xenolit.
- Xenolith sameAs Ксеноліт.
- Xenolith sameAs Thể_tù.
- Xenolith sameAs Q488640.
- Xenolith sameAs Q488640.
- Xenolith wasDerivedFrom Xenolith?oldid=673256176.
- Xenolith depiction XenolithSierra.JPG.
- Xenolith isPrimaryTopicOf Xenolith.