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- Subduction_zone_metamorphism abstract "A subduction zone is a region of the earth's crust where one tectonic plate moves under another tectonic plate; oceanic crust gets recycled back into the mantle and continental crust gets created by the formation of arc magmas. Arc magmas account for more than 20% of terrestrially produced magmas and are produced by the dehydration of minerals within the subducting slab as it descends into the mantle and are accreted onto the base of the overriding continental plate. Subduction zones host a unique variety of rock types created by the high-pressure, low-temperature conditions a subducting slab encounters during its descent. The metamorphic conditions the slab passes through in this process creates and destroys water bearing (hydrous) mineral phases, releasing water into the mantle. This water lowers the melting point of mantle rock, initiating melting. Understanding the timing and conditions in which these dehydration reactions occur, is key to interpreting mantle melting, volcanic arc magmatism, and the formation of continental crust. A metamorphic facies is characterized by a stable mineral assemblage specific to a pressure-temperature range and specific starting material. Subduction zone metamorphism is characterized by a low temperature, high-ultrahigh pressure metamorphic path through the zeolite, prehnite-pumpellyite, blueschist, and eclogite facies stability zones of subducted oceanic crust. Zeolite and prehnite-pumpellyite facies assemblages may or may not be present, thus the onset of metamorphism may only be marked by blueschist facies conditions. Subducting slabs are composed of basaltic crust topped with pelagic sediments; however, the pelagic sediments may be accreted onto the forearc-hanging wall and not subducted. Most metamorphic phase transitions that occur within the subducting slab are prompted by the dehydration of hydrous mineral phases. The breakdown of hydrous mineral phases typically occurs at depths greater than 10 km. Each of these metamorphic facies is marked by the presence of a specific stable mineral assemblage, recording the metamorphic conditions undergone but the subducting slab. Transitions between facies causes hydrous minerals to dehydrate at certain pressure-temperature conditions and can therefore be tracked to melting events in the mantle beneath a volcanic arc.".
- Subduction_zone_metamorphism thumbnail Metamorphic_pathway_for_subducted_crust.jpg?width=300.
- Subduction_zone_metamorphism wikiPageID "44062009".
- Subduction_zone_metamorphism wikiPageLength "17086".
- Subduction_zone_metamorphism wikiPageOutDegree "90".
- Subduction_zone_metamorphism wikiPageRevisionID "702265478".
- Subduction_zone_metamorphism wikiPageWikiLink Actinolite.
- Subduction_zone_metamorphism wikiPageWikiLink Albite.
- Subduction_zone_metamorphism wikiPageWikiLink Aluminosilicate.
- Subduction_zone_metamorphism wikiPageWikiLink Amphibole.
- Subduction_zone_metamorphism wikiPageWikiLink Antimony.
- Subduction_zone_metamorphism wikiPageWikiLink Aragonite.
- Subduction_zone_metamorphism wikiPageWikiLink Arsenic.
- Subduction_zone_metamorphism wikiPageWikiLink Basalt.
- Subduction_zone_metamorphism wikiPageWikiLink Blueschist.
- Subduction_zone_metamorphism wikiPageWikiLink Boron.
- Subduction_zone_metamorphism wikiPageWikiLink Calcite.
- Subduction_zone_metamorphism wikiPageWikiLink Category:Metamorphic_petrology.
- Subduction_zone_metamorphism wikiPageWikiLink Celadonite.
- Subduction_zone_metamorphism wikiPageWikiLink Chlorite_group.
- Subduction_zone_metamorphism wikiPageWikiLink Chromite.
- Subduction_zone_metamorphism wikiPageWikiLink Clay_minerals.
- Subduction_zone_metamorphism wikiPageWikiLink Continental_crust.
- Subduction_zone_metamorphism wikiPageWikiLink Cordierite.
- Subduction_zone_metamorphism wikiPageWikiLink Dunite.
- Subduction_zone_metamorphism wikiPageWikiLink Eclogite.
- Subduction_zone_metamorphism wikiPageWikiLink Enstatite.
- Subduction_zone_metamorphism wikiPageWikiLink Epidote.
- Subduction_zone_metamorphism wikiPageWikiLink File:Bluechist-ecolgite_transition.jpg.
- Subduction_zone_metamorphism wikiPageWikiLink File:Blueschist_facies_rock.jpeg.
- Subduction_zone_metamorphism wikiPageWikiLink File:Eclogite_facies.jpg.
- Subduction_zone_metamorphism wikiPageWikiLink File:Metamorphic_pathway_for_subducted_crust.jpg.
- Subduction_zone_metamorphism wikiPageWikiLink File:Metamorphic_pathway_of_pressure-temperature_conditions_in_subduction_zones.jpg.
- Subduction_zone_metamorphism wikiPageWikiLink Forsterite.
- Subduction_zone_metamorphism wikiPageWikiLink Gabbro.
- Subduction_zone_metamorphism wikiPageWikiLink Garnet.
- Subduction_zone_metamorphism wikiPageWikiLink Glaucophane.
- Subduction_zone_metamorphism wikiPageWikiLink Grossular.
- Subduction_zone_metamorphism wikiPageWikiLink Harzburgite.
- Subduction_zone_metamorphism wikiPageWikiLink Heulandite.
- Subduction_zone_metamorphism wikiPageWikiLink Hotspot_(geology).
- Subduction_zone_metamorphism wikiPageWikiLink Hydrothermal_circulation.
- Subduction_zone_metamorphism wikiPageWikiLink Igneous_rock.
- Subduction_zone_metamorphism wikiPageWikiLink Jadeite.
- Subduction_zone_metamorphism wikiPageWikiLink Kaolinite.
- Subduction_zone_metamorphism wikiPageWikiLink Laumontite.
- Subduction_zone_metamorphism wikiPageWikiLink Lawsonite.
- Subduction_zone_metamorphism wikiPageWikiLink Lead.
- Subduction_zone_metamorphism wikiPageWikiLink Magma.
- Subduction_zone_metamorphism wikiPageWikiLink Metamorphic_facies.
- Subduction_zone_metamorphism wikiPageWikiLink Metamorphism.
- Subduction_zone_metamorphism wikiPageWikiLink Mica.
- Subduction_zone_metamorphism wikiPageWikiLink Mid-ocean_ridge.
- Subduction_zone_metamorphism wikiPageWikiLink Montmorillonite.
- Subduction_zone_metamorphism wikiPageWikiLink Oceanic_crust.
- Subduction_zone_metamorphism wikiPageWikiLink Paired_metamorphic_belts.
- Subduction_zone_metamorphism wikiPageWikiLink Paragonite.
- Subduction_zone_metamorphism wikiPageWikiLink Pelagic_sediment.
- Subduction_zone_metamorphism wikiPageWikiLink Phengite.
- Subduction_zone_metamorphism wikiPageWikiLink Plagioclase.
- Subduction_zone_metamorphism wikiPageWikiLink Plate_tectonics.
- Subduction_zone_metamorphism wikiPageWikiLink Prehnite.
- Subduction_zone_metamorphism wikiPageWikiLink Prehnite-pumpellyite_facies.
- Subduction_zone_metamorphism wikiPageWikiLink Pumpellyite.
- Subduction_zone_metamorphism wikiPageWikiLink Pyrope.
- Subduction_zone_metamorphism wikiPageWikiLink Pyroxene.
- Subduction_zone_metamorphism wikiPageWikiLink Quartz.
- Subduction_zone_metamorphism wikiPageWikiLink Sericite.
- Subduction_zone_metamorphism wikiPageWikiLink Serpentine_subgroup.
- Subduction_zone_metamorphism wikiPageWikiLink Sheeted_dyke_complex.
- Subduction_zone_metamorphism wikiPageWikiLink Silicate_minerals.
- Subduction_zone_metamorphism wikiPageWikiLink Stilbite.
- Subduction_zone_metamorphism wikiPageWikiLink Stilpnomelane.
- Subduction_zone_metamorphism wikiPageWikiLink Stishovite.
- Subduction_zone_metamorphism wikiPageWikiLink Subduction.
- Subduction_zone_metamorphism wikiPageWikiLink Talc.
- Subduction_zone_metamorphism wikiPageWikiLink Titanite.
- Subduction_zone_metamorphism wikiPageWikiLink Topaz.
- Subduction_zone_metamorphism wikiPageWikiLink Tremolite.
- Subduction_zone_metamorphism wikiPageWikiLink Ultramafic_rock.
- Subduction_zone_metamorphism wikiPageWikiLink Volcanic_ash.
- Subduction_zone_metamorphism wikiPageWikiLink Wadati–Benioff_zone.
- Subduction_zone_metamorphism wikiPageWikiLink Wehrlite.
- Subduction_zone_metamorphism wikiPageWikiLink Zeolite.
- Subduction_zone_metamorphism wikiPageWikiLink Zeolite_facies.
- Subduction_zone_metamorphism wikiPageWikiLink Zoisite.
- Subduction_zone_metamorphism wikiPageWikiLinkText "Subduction zone metamorphism".
- Subduction_zone_metamorphism wikiPageWikiLinkText "subduction".
- Subduction_zone_metamorphism wikiPageUsesTemplate Template:Reflist.
- Subduction_zone_metamorphism subject Category:Metamorphic_petrology.
- Subduction_zone_metamorphism hypernym Region.
- Subduction_zone_metamorphism type Settlement.
- Subduction_zone_metamorphism comment "A subduction zone is a region of the earth's crust where one tectonic plate moves under another tectonic plate; oceanic crust gets recycled back into the mantle and continental crust gets created by the formation of arc magmas. Arc magmas account for more than 20% of terrestrially produced magmas and are produced by the dehydration of minerals within the subducting slab as it descends into the mantle and are accreted onto the base of the overriding continental plate.".
- Subduction_zone_metamorphism label "Subduction zone metamorphism".
- Subduction_zone_metamorphism sameAs m.012g4725.
- Subduction_zone_metamorphism wasDerivedFrom Subduction_zone_metamorphism?oldid=702265478.
- Subduction_zone_metamorphism depiction Metamorphic_pathway_for_subducted_crust.jpg.
- Subduction_zone_metamorphism isPrimaryTopicOf Subduction_zone_metamorphism.