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Relevant bibliographies by topics / Granulite facies metamorphism

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Academic literature on the topic 'Granulite facies metamorphism'

Author: Grafiati

Published: 4 June 2021

Last updated: 28 January 2023

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Journal articles on the topic "Granulite facies metamorphism"

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ENGVIK, A. K., and B. BINGEN. "Granulite-facies metamorphism of the Palaeoproterozoic – early Palaeozoic gneiss domains of NE Mozambique, East African Orogen." Geological Magazine 154, no. 3 (April 13, 2016): 491–515. http://dx.doi.org/10.1017/s0016756816000145.

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AbstractGranulite-facies metamorphism recorded in NE Mozambique is attributed to three main tectonothermal events, covering more than 1400 Ma from Palaeoproterozoic – early Palaeozoic time. (1) Usagaran–Ubendian high-grade metamorphism of Palaeoproterozoic age is documented in the Ponta Messuli Complex by Grt-Sil-Crd-bearing metapelites, estimated to pressure (P) 0.75 ± 0.08 GPa and temperature (T) 765 ± 96°C. The post-peak P-T path is characterized by decompression followed by near-isobaric cooling. (2) Irumidian medium- to high-pressure granulite-facies metamorphism is evident in the Unango and Marrupa complexes of late Mesoproterozoic – early Neoproterozoic age. High-pressure granulite-facies is documented by Grt-Cpx-Pl-Rt-bearing mafic granulites in the northwestern part of the Unango Complex, with peak conditions up to P = 1.5 GPa and T = 850°C. Medium-pressure granulite-facies conditions recording P of c. 1.15 GPa and T of 875°C are documented by Grt-Opx-Cpx-Pl assemblage in mafic granulites and charnockitic gneisses of the central part of the Unango Complex. (3) Tectonothermal activity during the Ediacaran–Cambrian Kuunga Orogeny is recorded in the Mesoproterozoic gneiss complexes as amphibolite facies to medium-pressure granulite-facies metamorphism. Granulite facies are documented by Grt-Opx-Cpx-Pl-bearing mafic granulites and charnockitic gneisses, reporting P = 0.99 ± 13 GPa at T = 738 ± 84°C in the Unango Complex and P = 0.92 ± 18 GPa at T = 841 ± 135°C in the Marrupa Complex. This metamorphism is attributed to crustal thickening related to overriding of the Cabo Delgado Nappe Complex, and shorthening along the Lurio Belt during the early Palaeozoic Kuunga Orogeny.

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Timmermann, Hilke, Rebecca A. Jamieson, Randall R. Parrish, and Nicholas G. Culshaw. "Coeval migmatites and granulites, Muskoka domain, southwestern Grenville Province, Ontario." Canadian Journal of Earth Sciences 39, no. 2 (February 1, 2002): 239–58. http://dx.doi.org/10.1139/e01-076.

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We present new field observations and petrologic and geochronological data from the Muskoka domain in the southwestern Grenville Province of Ontario in an attempt to constrain the relationship between amphibolite-facies and granulite-facies gneisses in areas of transitional metamorphic grade, and to examine their implication for tectonometamorphic models for the Grenville Province of Ontario. The predominant medium-grained amphibolite-facies migmatitic orthogneisses of the Muskoka domain contain several generations of leucosome, some of which are related to southeast-directed extensional structures. The amphibolite-facies granitoid gneisses contain numerous mafic enclaves with granulite-facies assemblages recrystallized from anhydrous precursors during Grenvillian metamorphism. Other associated granulites are characterized by their patchy occurrence and gradational contacts, similar to the charnockites in southern India. Patchy granulites, leucocratic vein networks in mafic enclaves, and crosscutting leucocratic granulite veins are interpreted to have formed as a result of local differences in reaction sequences and (or) fluid compositions. The UPb zircon lower intercept age of the patchy granulites overlaps with the previously determined range of 10801060 Ma for high-grade metamorphism in the Muskoka domain, while zircon and titanite from a crosscutting granulite vein crystallized at about 10651045 Ma, supporting a Grenvillian age for granulite formation. Peak metamorphic conditions of 750850°C and 1011.5 kbar (1 kbar = 100 MPa) were determined from the mafic enclaves, whereas the more felsic migmatites reequilibrated at somewhat lower temperatures. The high temperatures caused extensive migmatization and facilitated rheological weakening of the Muskoka domain 1025 million years after the start of the Ottawan orogeny in the Central Gneiss Belt.

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Campos, José C. S., Maurício A. Carneiro, and Miguel A. S. Basei. "U-Pb evidence for late Neoarchean crustal reworking in the Southern São Francisco Craton (Minas Gerais, Brazil)." Anais da Academia Brasileira de Ciências 75, no. 4 (December 2003): 497–511. http://dx.doi.org/10.1590/s0001-37652003000400008.

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The Passa Tempo Metamorphic Complex is one of several metamorphic complexes that form the Archean sialic crust of the southern São Francisco Craton. It encompasses hypersthene-bearing gneissic rocks, with subordinateNW- or EW-trending mafic-ultramafic bodies and granodioritic to alkali-granitic, weakly foliated, and light-colored granitoids. These granitoids are the product of generalized migmatization that followed granulite-facies metamorphism. To determine the ages of the granulite-facies metamorphism and granitoid genesis, we obtained U-Pb ages on zircon extracted from the mesosome and leucosome of the migmatitic gneisses. For the mesosome, a discordia that intercepts Concordia at 2622 ± 18 Ma is interpreted as a minimum age for granulite-facies metamorphism. For the leucosome, the upper intercept of discordia at 2599 ± 45 Ma corresponds to migmatization and granitoid genesis. Contemporaneous metamorphism and magmatism have been documented elsewhere in the São Francisco Craton, especially in the southern portion, demonstrating vast and vigorous reworking of sialic crust by the end of the Neoarchean.

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Dasgupta, Somnath, Pulak Sengupta, A. Mondal, and M. Fukuoka. "Mineral chemistry and reaction textures in metabasites from the Eastern Ghats belt, India and their implications." Mineralogical Magazine 57, no. 386 (March 1993): 113–20. http://dx.doi.org/10.1180/minmag.1993.057.386.11.

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AbstractThree types of mafic granulites, namely two pyroxene-plagioclase granutite (MG), two pyroxeneplagioclase-garnet granulite (GMG) and spinel-olivine-plagioclase-two pyroxene granulite (SMG) are exposed at Sunkarimetta, Eastern Ghats belt, India. The marie granulites exhibit a foliation concordant with that in associated granulite facies quartzofeldspathic gneisses. Textural characteristics and mineral chemical data suggest the following mineral reactions: olivine + plagioclase = spinel + orthopyroxene + clinopyroxene (SMG), orthopyroxene + plagioclase = garnet + quartz (GMG), clinopyroxene + plagioclase = garnet + quartz (GMG) and plagioclase + hemoilmenite + quartz = garnet + ilmenite + 02 (GMG). Geothermobarometry indicates maximum P-T conditions of metamorphism at c. 8.5 kbar, 950°C The marie granulites later suffered nearly isobaric cooling to c. 7.5 kbar, 750°C Bulk compositional characteristics suggest that SMG is of cumulate origin. The protoliths of the mafic granulites, emplaced at c. 32 km depth, are probably responsible for thermal perturbation causing granulite facies metamorphism of the enclosing rocks.

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PRAKASH, DIVYA, DEEPAK, PRAVEEN CHANDRA SINGH, CHANDRA KANT SINGH, SUPARNA TEWARI, MAKOTO ARIMA, and HARTWIG E. FRIMMEL. "Reaction textures and metamorphic evolution of sapphirine–spinel-bearing and associated granulites from Diguva Sonaba, Eastern Ghats Mobile Belt, India." Geological Magazine 152, no. 2 (August 14, 2014): 316–40. http://dx.doi.org/10.1017/s0016756814000399.

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AbstractThe Diguva Sonaba area (Vishakhapatnam district, Andhra Pradesh, South India) represents part of the granulite-facies terrain of the Eastern Ghats Mobile Belt. The Precambrian metamorphic rocks of the area predominantly consist of mafic granulite (±garnet), khondalite, leptynite (±garnet, biotite), charnockite, enderbite, calc-granulite, migmatic gneisses and sapphirine–spinel-bearing granulite. The latter rock type occurs as lenticular bodies in khondalite, leptynite and calc-granulite. Textural relations, such as corroded inclusions of biotite within garnet and orthopyroxene, resorbed hornblende within pyroxenes, and coarse-grained laths of sillimanite, presumably pseudomorphs after kyanite, provide evidence of either an earlier episode of upper-amphibolite-facies metamorphism or they represent relics of the prograde path that led to granulite-facies metamorphism. In the sapphirine–spinel-bearing granulite, osumilite was stable in addition to sapphirine, spinel and quartz during the thermal peak of granulite-facies metamorphism but the assemblage was later replaced by Crd–Opx–Qtz–Kfs-symplectite and a variety of reaction coronas during retrograde overprint. Variable amounts of biotite or biotite+quartz symplectite replaced orthopyroxene, cordierite and Opx–Crd–Kfs–Qtz-symplectite at an even later retrograde stage. Peak metamorphic conditions of c. 1000°C and c. 12 kbar were computed by isopleths of XMg in garnet and XAl in orthopyroxene. The sequence of reactions as deduced from the corona and symplectite assemblages, together with petrogenetic grid and pseudosection modelling, records a clockwise P–T evolution. The P–T path is characteristically T-convex suggesting an isothermal decompression path and reflects rapid uplift followed by cooling of a tectonically thickened crust.

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BHATTACHARYA, S., RAJIB KAR, S. MISRA, and W. TEIXEIRA. "Early Archaean continental crust in the Eastern Ghats granulite belt, India: isotopic evidence from a charnockite suite." Geological Magazine 138, no. 5 (September 2001): 609–18. http://dx.doi.org/10.1017/s0016756801005702.

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The Eastern Ghats granulite belt of India has traditionally been described as a Proterozoic mobile belt, with probable Archaean protoliths. However, recent findings suggest that synkinematic development of granulites took place in a compressional tectonic regime and that granulite facies metamorphism resulted from crustal thickening. The field, petrological and geochemical studies of a charnockite massif of tonalitic to trondhjemitic composition, and associated rocks, document granulite facies metamorphism and dehydration partial melting of basic rocks at lower crustal depths, with garnet granulite residues exposed as cognate xenoliths within the charnockite massif. The melting and generation of the charnockite suite under granulite facies conditions have been dated c. 3.0 Ga by Sm–Nd and Rb–Sr whole rock systematics and Pb–Pb zircon dating. Sm–Nd model dates between 3.4 and 3.5 Ga and negative epsilon values provide evidence of early Archaean continental crust in this high-grade terrain.

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ROY, A. B., ALFRED KRÖNER, P. K. BHATTACHAYA, and SANJEEV RATHORE. "Metamorphic evolution and zircon geochronology of early Proterozoic granulites in the Aravalli Mountains of northwestern India." Geological Magazine 142, no. 3 (May 2005): 287–302. http://dx.doi.org/10.1017/s0016756805000804.

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Granulites including a charnockite suite, mafic granulites, pelitic granulites, metanorite dykes and their retrograde varieties occur as discontinuous shear zone-bounded bodies within the Archaean basement comprising a granite gneiss–amphibolite–metasedimentary rock association in the central part of the Aravalli Mountains, northwest India. The entire suite, named the Sandmata Complex, preserves a complex history of tectonothermal evolution. Except for their strongly foliated margins, the granulite bodies are largely massive. Partial melting in the ‘country rocks’ led to the development of migmatite gneisses close to the contact of the granulite, a feature not as common in the rocks further away from the granulite contact. Geothermobarometry of massive granulites indicates Tmax>900°C and Pmax∼7.5 kbar. The retrograde granulites, which formed at lower amphibolite/upper greenschist-facies conditions, experienced channelized hydration reactions concomitant with shearing. These rocks locally appear as hornblende–biotite-bearing foliated granulite with or without Cpx or Opx. The rocks seem to have followed an inverse PTt path and have undergone an earlier phase of near-isobaric cooling. Our single zircon Pb–Pb ages indicate that the exhumation of granulites to the shallower amphibolite-facies levels with concomitant melting in the country rocks took place between 1690 Ma and 1621 Ma. Assuming that the granulite-facies metamorphism took place at around 1725 Ma, we relate the entire process of granulite metamorphism and exhumation covering an age range between 1725 and 1621 Ma to the rift basin opening stages of the Delhi Orogenic cycle that culminated at c. 1450 Ma.

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Kepezhinskas, Nikita. "Fluid-induced metamorphism and anatexis of refractory Ni-Co-Cu sulphides in subduction-related rocks." E3S Web of Conferences 98 (2019): 08008. http://dx.doi.org/10.1051/e3sconf/20199808008.

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The role of metamorphism on refractory sulfides is not well constrained. Although experiments have displayed the effectiveness of high grade metamorphism, namely granulite facies metamorphism, on sulfide anatexis, its role in the presence of other variables is still poorly understood. Rocks from the Bay Islands Accretionary Complex in Honduras and the Ildeus-Lucha Complex in Russia exhibit extensive metamorphism. Sulfide mineralization is prolific in these rocks suggesting that metamorphism has played an important role in re-concentrating these sulfides during amphibolite and granulite facies metamorphism.

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Skublov, Sergey G., Aleksey V. Berezin, and Laysan I. Salimgaraeva. "Comment on Volodichev et al. Archean Zircons with Omphacite Inclusions from Eclogites of the Belomorian Province, Fennoscandian Shield: The First Finding. Minerals 2021, 11, 1029." Minerals 12, no. 2 (January 25, 2022): 141. http://dx.doi.org/10.3390/min12020141.

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Volodichev et al. (Volodichev et al., 2021) reported on the first finding of omphacite (23%–25% Jd) inclusions in 2.68 Ga metamorphic zircons from Gridino eclogites and presented it as evidence for Archean eclogite-facies metamorphism in the Belomorian Mobile Belt. We believe that the Archean age of the garnets referred to by the above authors was estimated incorrectly. Our interpretation is that omphacite origin is related to Archean high-pressure granulite-facies metamorphism.

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Pan, Y., M. E. Fleet, and F. J. Longstaffe. "Melt-related metasomatism in mafic granulites of the Quetico subprovince, Ontario: constraints from O-Sr-Nd isotopic and fluid inclusion data." Canadian Journal of Earth Sciences 36, no. 9 (September 1, 1999): 1449–62. http://dx.doi.org/10.1139/e99-041.

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Mafic granulites in the Archean Quetico subprovince, north of Manitouwadge, Ontario, occur as isolated lenses or discontinuous layers in spatial association with tonalitic leucosomes in metasedimentary rocks and exhibit concentric zoning from a biotite-rich margin to an orthopyroxene-rich outer zone and a clinopyroxene-rich central zone, with internal orthopyroxene-bearing leucosomes and, rarely, patches of relict amphibolites within the clinopyroxene-rich zone. Microstructural and microchemical evidence suggests that the mafic granulites formed from amphibolites by combined infiltration-diffusion processes in the presence of a P-F-bearing silicate melt ((P2O5)melt = 0.24-0.28 wt.%) and a CO2-rich (hypersaline?) fluid. The whole-rock and mineral δ18O values of the mafic granulites (8-9 V-SMOW) indicate oxygen-isotope equilibration between amphibolites (6.6-6.9) and associated tonalitic leucosomes (9.5-10) at 700-800°C. Strontium- and Nd-isotope data and U-Pb zircon ages confirm isotopic homogenization at the leucosome-amphibolite boundaries during the peak granulite-facies metamorphism at about 2650 Ma. Texturally, early CO2-rich fluid inclusions in quartz and garnet yield P-T conditions similar to those of the peak granulite-facies metamorphism. Hypersaline fluid inclusions occur in textural coexistence with the early CO2-rich inclusions, but are invariably low in homogenization temperatures (178-234°C). This study shows that silicate melts not only provide a conduit for CO2-rich fluids but also interact directly with country rocks for the formation of granulites. Also, the O-Sr-Nd isotope data show that the documented mobility of rare-earth elements in the Quetico granulite zone is localized in scale and related to anatexis of local metasedimentary rocks during the granulite-facies metamorphism.

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Dissertations / Theses on the topic "Granulite facies metamorphism"

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SUZUKI, Kazuhiro, Setsuo YOGO, and Masahiro ITO. "Cambrian granulite to upper amphibolite facies metamorphism of post-797 Ma sediments in Madagascar." Dept. of Earth and Planetary Sciences, Nagoya University, 1997. http://hdl.handle.net/2237/2837.

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Redler, Charlotte [Verfasser]. "Granulite facies metamorphism and partial melting processes in the Ivrea Zone, Northern Italy / Charlotte Redler." Mainz : Universitätsbibliothek Mainz, 2012. http://d-nb.info/1019231149/34.

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McStay, Jonathan Hugh. "Granulite-facies metamorphism, fluid buffering and partial melting in the Buffels River area of the Namaqualand metamorphic complex, South Africa." Doctoral thesis, University of Cape Town, 1991. http://hdl.handle.net/11427/18280.

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The Buffels River area of central Namaqualand comprises a sequence of Proterozoic volcano-sedimentary gneisses intruded by granitoid orthogneisses. This study concentrates on the mechanisms of granrilite-facies metamorphism in a small area of isofacial rocks. Particular emphasis is placed on the role of partial melting and the infiltration and buffering of metamorphic fluid is examined.

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Daczko, Nathan Robert. "The Structural and Metamorphic evolution of cretaceous high-P granulites, Fiordland, New Zealand." University of Sydney. Geosciences, 2002. http://hdl.handle.net/2123/822.

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Fiordland is located southwest of South Island of New Zealand. The field area of this thesis is in northern Fiordland, at the boundary of pristine arc rocks (Median Tectonic Zone) and a belt of Paleozoic paragneisses and orthogneisses of variable age that represent the metamorphosed paleo-Pacific Gondwana margin.

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Zulbati, Petrillo Fabio. "P-T-fluid conditions of an end-Archaean granulite-facies metamorphism in the Vestfold Hills, East Antartica." Thesis, University of Edinburgh, 2002. http://hdl.handle.net/1842/13259.

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Guilmette, Carl. "High-P Granulite facies metamorphism from the tibetan plateau and the Himalaya: Metamorphic history and geochemistry of lower crustal and early subduction metamorphic rocks." Thesis, Université Laval, 2010. http://www.theses.ulaval.ca/2010/27631/27631.pdf.

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Garlick, Sarah R. "Granulite- to amphibolite-facies metamorphism and penetrative deformation in a disrupted ophiolite, Kangaroo Mountain area, Klamath Mountains, California a deep view into the basement of an accreted, oceanic island arc /." Laramie, Wyo. : University of Wyoming, 2007. http://proquest.umi.com/pqdweb?did=1317326781&sid=1&Fmt=2&clientId=18949&RQT=309&VName=PQD.

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Krauss, Jason B. "High-pressure (HP), granulite-facies thrusting in a thick-skinned thrust system in the eastern Grenville Province, central Labrador /." Internet access available to MUN users only, 2002. http://collections.mun.ca/u?/theses,42716.

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Rocha, Brenda Chung da. "Evolução metamórfica dos metassedimentos da Nappe Lima Duarte e rochas associadas do Complexo Mantiqueira, sul da Faixa Brasília (MG)." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/44/44141/tde-27072011-180118/.

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Abstract:

A Nappe Lima Duarte está situada no sudeste do Orógeno Brasília. É constituída por paragnaisses migmatíticos com granada, sillimanita, biotita e muscovita, e ortoquartzitos grossos, com intercalações esparsas de gnaisses calciossilicáticos e de anfibolitos. O Complexo Mantiqueira, infraestrutura alóctone da nappe, ocorre na forma de lascas tectonicamente imbricadas na mesma. É constituído por ortognaisses migmatíticos e polimetamórficos, tipo TTG, com intercalações de rochas metabásicas granulíticas, na forma de enclaves máficos alongados e boudins, geralmente concordantes com a foliação principal. Também ocorrem rochas charnockíticas aparentemente intrusivas nos ortognaisses Mantiqueira, com rochas metabásicas associadas. A associação mineral observada nos paragnaisses (Grt + Bt + Sil + Pl + Rt +Ilm + Qtz ± Ms ± Kfs ± Ky) é relacionada a um metamorfismo progressivo de fácies anfibolito superior, caracterizado por reações de quebra de muscovita e geração de feldspato potássico. As condições de pico bárico obtidas no THERMOCALC para a associação com cianita são de 10 ± 0.6 kbar, a 807 ± 25ºC. O pico térmico de 827 ± 44ºC a 8.2 ± 1.8 kbar, no limite da curva de quebra da dumortierita, foi obtido no THERMOCALC com a associação mineral envolvendo sillimanita. As rochas metabásicas inseridas nos ortognaisses do Complexo Mantiqueira e rochas charnockíticas associadas apresentam a associação Grt-Cpx-Pl-Qtz±Opx+Hbl, que é diagnóstica do fácies granulito de alta pressão. São caracterizadas pela presença de texturas coroníticas progressivas de Grt-Cpx-Pl-Qtz nos contatos entre Opx, Pl e/ou opacos, aparentemente de origem ígnea, que marca a passagem do campo dos granulitos de pressão intermediária para o campo dos granulitos de alta pressão. As condições de pico registradas nos veios constituídos por Grt-Cpx-Pl nos metagabronoritos é de 831.8ºC, a 10 kbar. O granada granulito registra o pico metamórfico a 890 ± 41ºC, a 9.26 ± 1.93 kbar. Cálculos realizados no TWEEQU forneceram condições de equilíbrio de 801ºC, a 9.6 kbar para a associação de fácies granulito. As condições de pico bárico nas rochas charnockíticas são de 14.36 ± 1.9 kbar, a 680ºC, enquanto que as temperaturas máximas registradas são de 885.17ºC, a 10 kbar. Cálculos realizados no THERMOCALC forneceram temperatura de 771 ± 166ºC, a 11.8 ± 2.4 kbar. As rochas metabásicas relacionadas ao Complexo Mantiqueira apresentam baixas concentrações de elementos LILE, possivelmente devido ao empobrecimento destes elementos durante o metamorfismo através de perdas por reações de desidratação. Os dados geoquímicos apontam fontes do tipo E-MORB para grande parte das rochas metabásicas, embora sempre com enriquecimento em ETR maior, o que é sugestivo de fontes enriquecidas. O Grt-cpx anfibolito simplectítico apresenta assinaturas geoquímicas distintas, com enriquecimento maior em elementos LILE e ETRL, o que sugere uma origem a partir de fontes OIB. Os padrões de ETR e diagramas de variação multi-elementares de elementos traço sugerem que as rochas charnockíticas têm fontes relacionadas à ambientes de arco vulcânico. Os paragnaisses, em fácies anfibolito superior a granulito, registram uma trajetória inicial horária, descompressiva ao campo da sillimanita. É distinta da trajetória inicial anti-horária exibida pelas rochas metabásicas e charnockíticas, que registram nas coronas de Grt-Cpx-Pl o metamorfismo progressivo de fácies granulito de alta pressão. Sugere-se que esse relativo aumento de pressão tenha sido condicionado pela colocação dos metassedimentos da Nappe Lima Duarte sobre as rochas do Complexo Mantiqueira, porém no mesmo campo de temperatura. Assim, o avanço da nappe metassedimentar pode ter sido responsável pelo soterramento das rochas metabásicas e charnockíticas relacionadas com o Complexo Mantiqueira, o que justifica a pressão mais elevada nestes litotipos. A etapa de exumação foi compartilhada por ambas, o que é evidenciado nas semelhanças de condições metamórficas durante a trajetória de resfriamento quase isobárico, porém com os litotipos do Complexo Mantiqueira em nível crustal mais profundo.
The Lima Duarte Nappe is located in southeastern Brasília Orogen and is composed by migmatitic paragneisses presenting garnet, sillimanite, biotite and muscovite, and coarse-grained orthoquartzites, with few amphibolite and calc-silicate interlayers. The Mantiqueira Complex occurs as tectonic imbricated lenses in the Lima Duarte Nappe, resembling an allochthon structure. It comprises TTG-type migmatitic and polymetamorphic orthogneisses, presenting granulitic metabasic interlayers, as mafic bands and lenses, as well as boudins, which are often concordant with the main foliation. Charnockitic rocks are apparently intrusive in the Mantiqueira orthogneisses, with associated metabasic rocks. The mineral assemblage observed in paragneisses (Grt + Bt + Sil + Pl + Rt + Ilm + Qtz ± Ms ± Kfs ± Ky) is related to an upper amphibolite facies progressive metamorphism characterized by muscovite breakdown reactions producing potassic feldspar. The peak baric conditions obtained in the THERMOCALC processing software for the assemblage involving kyanite are 10 ± 0.6 kbar and 807 ± 25ºC. The thermal peak of 827 ± 44ºC and 8.2 ± 1.8 kbar obtained in THERMOCALC for the assemblage envolving sillimanite, is placed in the boundary of breakdown curve for dumortierite. The metabasic rocks interlayered in Mantiqueira Complex orthogneisses show the Grt-Cpx-Pl-Qtz±Opx+Hbl assemblage, indicating high pressure granulite facies. They are characterized by the presence of Grt-Cpx-Pl progressive coronitic textures between Opx, Pl and/or opaques boundaries, apparently with an igneous origin, which marks the transitions from intermediate pressure granulites field to high pressure granulite field. The peak conditions recorded in Grt-Cpx-Pl veins in metagabbronorites is 831.8ºC, and 10 kbar. The garnet granulite records the metamorphic peak at 890 ± 41ºC, and 9.26 ± 1.93 kbar. Thermobarometric calculations performed at TWEEQU revealed equilibrium conditions at 801ºC, and 9.6 kbar based on granulite facies mineral assemblage. The peak baric conditions achieved by the charnockitic rocks are 14.36 ± 1.9 kbar, and 680ºC, while maximum temperatures recorded are 885.17ºC, and 10 kbar. Thermobarometric calculations performed at THERMOCALC revealed temperatures of 771 ± 166ºC, and 11.8 ± 2.4 kbar. The metabasic rocks related to Mantiqueira Complex show low concentrations of LILE elements, possibly due to the depletion of these elements during metamorphism in dehydrating reactions. Geochemical data point out to E-MORB type sources for the great majority of metabasic rocks, even though with an REE enrichment, suggesting more enriched sources. The symplectitic Grt-Cpx amphibolite show distinct geochemical signatures, characterized by a greater enrichment in LILE and light-REE elements, suggesting an OIB source for their origin. REE patterns and trace element spidergrams suggest that charnockitic rocks sources are related to a volcanic arc tectonic setting. Paragneisses, in upper amphibolite to granulite facies, recorded an initial clockwise path, decompressing to the sillimanite field. It differs from initial counterclockwise path exhibited by the metabasic and charnockitic rocks, which preserves the progressive high pressure granulite facies metamorphism in Grt-Cpx-Pl coronae. This pressure increase is probally related to the metassediments of the Lima Duarte Nappe, that thrusted over the Mantiqueira Complex rocks, although in the same temperature field. The buried character of metabasic and charnockitic rocks may be caused by the thrust of the metassedimentary nappe, justifying the higher pressure found in these lithotypes. The exhumation phase was shared by both of them, which is confirmed in the metamorphic similarities conditions, as they cooled out together in a near isobaric path, although the Mantiqueira Complex lithotypes were in a deeper crustal level.

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Müller, Mario. "The Mavuradonha layered complex neoproterozoic emplacement and Pan-African granulite facies metamorphism in the Zambezi Allochthonous Terrane of the Mt. Darwin Area, Zambezi belt, NE-Zimbabwe /." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=971950113.

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Books on the topic "Granulite facies metamorphism"

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Nijland, Teunis Gerrit. The Bamble amphibolite to granulite facies transitions zone, Norway. [Utrecht: Faculteit Aardwetenschappen der Rijksuniversiteit Utrecht, 1993.

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Peterson, Jonathan William. Experimental investigation on the melting of biottle-quartz-feldspar assemblages and its potential role in granulite facies metamorphism. 1989.

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Book chapters on the topic "Granulite facies metamorphism"

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Newton, R. C. "Fluids of Granulite Facies Metamorphism." In Advances in Physical Geochemistry, 36–59. New York, NY: Springer New York, 1986. http://dx.doi.org/10.1007/978-1-4612-4896-5_2.

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Schiøtte, L., and D. Bridgwater. "Multi Stage Late Archaean Granulite Facies Metamorphism in Northern Labrador, Canada." In Granulites and Crustal Evolution, 157–69. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2055-2_9.

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Hensen, B. J., and S. L. Harley. "Graphical analysis of P—T—X relations in granulite facies metapelites." In High-temperature Metamorphism and Crustal Anatexis, 19–56. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-015-3929-6_2.

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Rumble, D., C. P. Chamberlain, P. K. Zeitler, and B. Barreiro. "Hydrothermal Graphite Veins and Acadian Granulite Facies Metamorphism, New Hampshire, USA." In Fluid Movements — Element Transport and the Composition of the Deep Crust, 117–19. Dordrecht: Springer Netherlands, 1989. http://dx.doi.org/10.1007/978-94-009-0991-5_11.

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Schumacher, Renate, Volker Schenk, Peter Raase, and P. W. Vitanage. "Granulite facies metamorphism of metabasic and intermediate rocks in the Highland Series of Sri Lanka." In High-temperature Metamorphism and Crustal Anatexis, 235–71. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-015-3929-6_10.

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Vernon, R. H., G. L. Clarke, and W. J. Collins. "Local, mid-crustal granulite facies metamorphism and melting: an example in the Mount Stafford area, central Australia." In High-temperature Metamorphism and Crustal Anatexis, 272–319. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-015-3929-6_11.

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Harley, S. L., and B. J. Hensen. "Archaean and Proterozoic high-grade terranes of East Antarctica (40–80°E): a case study of diversity in granulite facies metamorphism." In High-temperature Metamorphism and Crustal Anatexis, 320–70. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-015-3929-6_12.

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Newton, Robert C. "Temperature, Pressure and Metamorphic Fluid Regimes in the Amphibolite Facies to Granulite Facies Transition Zones." In The Deep Proterozoic Crust in the North Atlantic Provinces, 75–104. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-009-5450-2_6.

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Touret, J. L. R., and T. G. Nijland. "Prograde, Peak and Retrograde Metamorphic Fluids and Associated Metasomatism in Upper Amphibolite to Granulite Facies Transition Zones." In Lecture Notes in Earth System Sciences, 415–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-28394-9_11.

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Sengupta, Sudipta. "A Comprehensive Study of the Structural Geology of the Schirmacher Hills." In Geoscientific Investigations From the Indian Antarctic Program, 68–83. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-6684-4078-0.ch003.

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Abstract:

The Precambrian basement of the Schirmacher Hills records multiple episodes of deformation, metamorphism, migmatization, and emplacement of successive generations of mafic and felsic bodies. The earliest tectono-thermal event (D1/M1), preserved in some mafic and ultramafic enclaves, indicates deformation at great crustal depth. The mineralogical assemblage of these enclaves indicates early high temperature (900o C) and high-pressure (10 Kbar) granulite facies conditions. The second tectono-thermal event also showed deformation under granulite facies metamorphism (D2/M2) under 800-850oC and 8 Kbar. The third group of events (D3/M3) is the most dominant in this region and involved deformation under amphibolite facies conditions with synchronous emplacement of granites and mafic dykes and culminated in regional thrusting, producing a regional inversion where the granulates were emplaced over the amphibolite facies rocks. The later events created upright folds and vertical shear zones under amphibolite facies conditions.

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Conference papers on the topic "Granulite facies metamorphism"

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Weimer, Joshua J., and Benjamin W. Hallett. "CHARACTERIZING GRANULITE FACIES METAMORPHISM OF THE PICURIS OROGENY, TAOS RANGE, NEW MEXICO." In 54th Annual GSA North-Central Section Meeting - 2020. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020nc-348215.

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Yakymchuk, Chris, Christopher L. Kirkland, Julie Hollis, Jillian L. Kendrick, Nicolas J. Gardiner, and Kristoffer Szilas. "ACCRETION OR STAGNATION? ARCHEAN GRANULITE-FACIES METAMORPHISM IN THE AKIA TERRANE, WEST GREENLAND." In GSA Annual Meeting in Phoenix, Arizona, USA - 2019. Geological Society of America, 2019. http://dx.doi.org/10.1130/abs/2019am-334306.

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Cutts, Kathryn, Lucas Eduardo Araujo, Talitta Nunes Manoel, Monica Heilbron, and Claudio Valeriano. "Metamorphic evolution of the Juiz de Fora Complex: Rhyacian and Ediacaran granulite facies metamorphism records two supercontinent amalgamation events." In Goldschmidt2021. France: European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.7390.

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Schwartz, Joshua J., John A. Wiesenfeld, and Jade Star Lackey. "CRETACEOUS BATHOLITH CONSTRUCTION DURING EPISODIC GARNET GRANULITE-FACIES METAMORPHISM IN THE SAN GABRIEL MOUNTAINS, SOUTHERN CALIFORNIA." In 112th Annual GSA Cordilleran Section Meeting. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016cd-274738.

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Yoshida, Kenta, Sota Niki, Hikaru Sawada, Takafumi Hirata, Kenji Asakura, Ryosuke Oyanagi, and Takao Hirajima. "Simultaneous P-T-t estimation of ultrahigh-temperature high-pressure granulite facies metamorphism recorded in titanite." In Goldschmidt2021. France: European Association of Geochemistry, 2021. http://dx.doi.org/10.7185/gold2021.4227.

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Du, Kaiyang, and Hao Cheng. "Long-Lived Granulite-Facies Metamorphism in the North China Craton Constrained by Combined Garnet and Zircon Geochronology." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.614.

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Walters, Jesse, Steven Spreitzer, Edward S. Grew, M. L. Williams, Martin Yates, M. J. Jercinovic, Christopher J. Carson, and Alicia M. Cruz-Uribe. "CAMBRIAN GRANULITE-FACIES METAMORPHISM OF THE LARSEMANN HILLS, PRYDZ BAY, ANTARCTICA: USING THERMODYNAMIC MODELING TO INFORM MONAZITE PETROCHRONOLOGY." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-302124.

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Adsit, Aaron, Matthew Carter, William O. Nachlas, and Earl R. Verbeek. "INTERDIFFUSION OF ZN-MN-FE IN PYROXENE, SPINEL, AND GARNET DURING GRENVILLE GRANULITE FACIES METAMORPHISM AT STERLING HILL, NJ." In Northeastern Section - 57th Annual Meeting - 2022. Geological Society of America, 2022. http://dx.doi.org/10.1130/abs/2022ne-375208.

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Baker, Lindsey K., Sara V. Stotter, Christopher L. Andronicos, and Christopher G. Daniel. "TESTING MODELS OF MAZATZAL (1650 MA) AND PICURIS AGE (1400 MA) METAMORPHISM IN NEAR–GRANULITE FACIES METAMORPHIC ROCKS OF THE NORTHERN TAOS RANGE, NEW MEXICO." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-320328.

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Southworth, Scott, John N. Aleinikoff, and Thomas A. Johnson. "SEDIMENTATION, GRANULITE-FACIES METAMORPHISM, DEFORMATION, AND IGNEOUS INTRUSIONS DEFINE MULTIPLE TECTONIC EVENTS ASSOCIATED WITH THE OTTAWAN-RIGOLET OROGENIES IN PROTEROZOIC ROCKS OF THE APPALACHIAN BLUE RIDGE." In Joint 69th Annual Southeastern / 55th Annual Northeastern GSA Section Meeting - 2020. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020se-343303.

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