Anatexis (via Latin from Greek roots meaning "to melt down") is the partial melting of rocks.[1] Traditionally, anatexis is used specifically to discuss the partial melting of crustal rocks, while the generic term "partial melting" refers to the partial melting of all rocks, in both the crust and mantle.[citation needed]
Anatexis can occur in a variety of different settings, from zones of continental collision to mid-ocean ridges.[2] It is believed that anatexis is the process largely responsible for the formation of migmatites.[1] Furthermore, scientists have recently discovered that partial melting plays an increasingly important role in active crustal processes, including the advancement of active deformation and the emplacement of crustal granites.[3] As a result, active feedback between crustal shearing, melting, and granite emplacement[3] has become largely accepted in the place of large scale, unreasonable models involving fractional melting of the mantle into granitic batholiths and plutons.[4] Evidence for this can be seen in the physical, mineralogical, and isotopic signatures of countless granites.[5]
^ abAshworth, J. R., ed. (1985). Migmatites. doi:10.1007/978-1-4613-2347-1. ISBN 978-1-4612-9438-2.
^Johannes, Wilhelm, 1936- (1996). Petrogenesis and experimental petrology of granitic rocks. Springer. ISBN 3540604162. OCLC 33899456.{{cite book}}: CS1 maint: multiple names: authors list (link) CS1 maint: numeric names: authors list (link)
^ abBrown, Michael; Solar, Gary S. (February 1998). "Shear-zone systems and melts: feedback relations and self-organization in orogenic belts". Journal of Structural Geology. 20 (2–3): 211–227. Bibcode:1998JSG....20..211B. doi:10.1016/s0191-8141(97)00068-0. ISSN 0191-8141.
^Petford, N.; Cruden, A. R.; McCaffrey, K. J. W.; Vigneresse, J.-L. (December 2000). "Granite magma formation, transport and emplacement in the Earth's crust". Nature. 408 (6813): 669–673. Bibcode:2000Natur.408..669P. doi:10.1038/35047000. ISSN 0028-0836. PMID 11130061. S2CID 4404285.
^Brown, Michael; Averkin, Yuri A.; McLellan, Eileen L.; Sawyer, Edward W. (1995-08-10). "Melt segregation in migmatites". Journal of Geophysical Research: Solid Earth. 100 (B8): 15655–15679. Bibcode:1995JGR...10015655B. doi:10.1029/95JB00517.
Anatexis (via Latin from Greek roots meaning "to melt down") is the partial melting of rocks. Traditionally, anatexis is used specifically to discuss...
the process whereby metamorphic rocks are transformed into granulite ‘anatexis’. The segregation of melt during the prograde part of the metamorphic history...
B. (November 2000). "Generation of anorthositic magma by H 2 O-fluxed anatexis of silica-undersaturated gabbro: an example from the north Norwegian Caledonides"...
fractional crystallization or by assimilation of melted crustal rock (anatexis). Associations of andesites, dacites, and rhyolites in similar tectonic...
though continental crust. Most granitoids are generated from crustal anatexis, the partial melting of the crust; however the mantle may contribute both...
"The Extent of Equilibration between Melt and Residuum during Regional Anatexis and its Implications for Differentiation of the Continental Crust: a Study...
2011. du Bray, Edward A. and John S. Pallister, "Recrystallization and anatexis along the plutonic-volcanic contact of the Turkey Creek caldera, Arizona"...
Group from eastern Hebei Province, China: Timing of BIF deposition and anatexis". Journal of Asian Earth Sciences. 113: 1017–1034. Bibcode:2015JAESc.113...
formed in the Late Jurassic with the magmas likely being derived from anatexis. This early magmatism produced a bimodal magmatism that formed both leucogranite...
Ocean. In the main phase of the Great Falls orogeny, arc magmatism and anatexis occurred as the Montana metasedimentary terrane was buried beneath the...
the continent, and dissolved minerals in ocean waters. Metamorphism and anatexis (partial melting of crustal rocks) can mix these elements together again...
collisions are accompanied by major crustal thickening, leading to heating and anatexis within the crust, generally in the form of peraluminous granitic intrusions...
blueschist or eclogite facies minerals. Metamorphism Metamorphic facies Anatexis Metamorphic rock Geologic map See for example Best (2003), pp 431-436 for...
zeolites. Rocks containing amygdules can be described as amygdaloidal. anatexis Melting of pre-existing rock. Compare metatexis, diatexis, and syntexis...
Heinz-Jurgen (8 October 2008). "Metamorphism, graphite crystallinity, and sulfide anatexis of the Rampura Agucha massive sulfide deposit, northwestern India". Mineralium...
Transscandinavian Igneous Belt. This magmatism was largely the result of anatexis forming migmatites and large plutons. Another characteristic of the late...
classification of pegmatites Origin of Oxford Co., Maine Pegmatites - anatexis How to assess gem and mineralogical potential of pegmatites Mineral associations...
magmas. Peraluminous magmas in turn results from the partial melting (anatexis) of metasedimentary rock and gneiss in the continental crust. Analysis...
high-pressure mafic magmas derived from the crust, either directly by anatexis or indirectly from dragged-down crustal fragments. The magmas were then...
resulted in the heating up of the lower crust causing metamorphism and anatexis, and even managed to moderately heat up the top of the lower crust. The...
Metamorphic Complex became exhumed. Her work demonstrated a role for doming, anatexis, and intrusion, within a regional context of right lateral strike slip—leading...
under high-temperature and low-pressure conditions (HP/LT). In places anatexis was reached, an example being the melting of some Precambrian gneisses...
Suite is considered to be an anorogenic A-type granite suite produced by anatexis of the lower crust at ~1080 to 1050 Ma by the injection of the mafic Giles...
likely that, particularly for S-type granite which is formed by wholesale anatexis (melting) of metasedimentary rocks, restite mediated melting and fractionation...
Basement chronology of the Antarctic Peninsula: recurrent magmatism and anatexis in the Palaeozoic Gondwana Margin, Journal of the Geological Society, London...
type locality. Some felsic appinite magmas are thought to have formed by anatexis — and not by fractional crystallization. The overview centers on the example...
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