Готові списки джерел за темами / Eastern Ghats Domain

Добірка наукової літератури з теми "Eastern Ghats Domain"

Автор: Grafiati
Опубліковано: 10 грудня 2022
Оновлено: 28 січня 2023

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Статті в журналах з теми "Eastern Ghats Domain"

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Bhattacharjee, Mousumi, Asutosh Kumar Tripathy, Jayanta Kumar Nanda, and R. Sreenivas. "REE—HFSE—rich, Titanite-bearing Syenite — Pyroxenite Intrusive Suite from the Chilka Lake Domain of the Northeastern Eastern Ghats Belt." Journal of the Geological Society of India 98, no. 5 (May 2022): 654–60. http://dx.doi.org/10.1007/s12594-022-2041-y.

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Henderson, Bonnie, Alan S. Collins, Justin Payne, Caroline Forbes, and Dilip Saha. "Geologically constraining India in Columbia: The age, isotopic provenance and geochemistry of the protoliths of the Ongole Domain, Southern Eastern Ghats, India." Gondwana Research 26, no. 3-4 (November 2014): 888–906. http://dx.doi.org/10.1016/j.gr.2013.09.002.

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Sarkar, Tapabrato, and Volker Schenk. "Two-stage granulite formation in a Proterozoic magmatic arc (Ongole domain of the Eastern Ghats Belt, India): Part 1. Petrology and pressure–temperature evolution." Precambrian Research 255 (December 2014): 485–509. http://dx.doi.org/10.1016/j.precamres.2014.07.026.

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SAIKIA, D., P. NASIPURI, and A. BHATTACHARYA. "In situ U–Th–Pbtotal dating of polychronous monazite in the Koraput anorthosite pluton, Eastern Ghats Granulite Belt (India), and implications." Geological Magazine 155, no. 1 (October 30, 2017): 209–28. http://dx.doi.org/10.1017/s001675681700084x.

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AbstractU–Th–Pbtotal age determinations in monazite in a noritic anorthosite at the margin of the Koraput anorthosite pluton constrain the time of emplacement and sub-solidus chemical modifications in the Grenvillian-age anorthosite pluton in the Eastern Ghats Province (EGP), India. The monazites hosted within dynamically recrystallized orthopyroxene and plagioclase grains are large (50–500 μm in diameter) and complexly zoned. Based on the textural–chemical heterogeneities, these monazites are classified into three groups. Group-I monazites exhibit a low-ThO2 core mantled by a high-ThO2 rim. By contrast, the group-II monazites exhibit high-ThO2 cores laced by ThO2-poor mantles, and outermost rims with still lower ThO2 contents. Skeletal group-III monazites at polygonized grain/phase boundaries exhibit patchy and concentric zones with decreasing ThO2 towards the margin. The U–Th–Pbtotal chemical ages obtained using electron probe microanalyses exhibit four age clusters. The oldest age population (mean 939 ± 4.5 Ma) obtained in cores in group-I, II and III monazites with patchy zones corresponds with the emplacement of the Koraput anorthosite, and this age population is consistent with 980–930 Ma emplacement ages reported in other EGP anorthosite massifs. Younger monazites mantling the cores in group-II monazites and in group-III monazites with mean ages of 877 ± 5 Ma and 749 ± 18 Ma possibly reflect episodic monazite growth by fluid-aided dissolution–precipitation culminating with the disintegration of Rodinia at ~750 Ma. The youngest age population (mean 574 ± 19 Ma) in the outermost monazite rims and monazite veins represents renewed monazite growth during the Pan African assembly of the Grenvillian-age EGP domain with the proto-Indian cratons.
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Ganguly, Proloy, Sankar Bose, Kaushik Das, Junji Torimoto, and Gautam Ghosh. "Origin of Spinel + Quartz Assemblage in a Si-undersaturated Ultrahigh-temperature Aluminous Granulite and its Implication for the P–T–fluid History of the Phulbani Domain, Eastern Ghats Belt, India." Journal of Petrology 58, no. 10 (October 1, 2017): 1941–74. http://dx.doi.org/10.1093/petrology/egx078.

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Sarkar, Tapabrato, Volker Schenk, Peter Appel, Jasper Berndt, and Pulak Sengupta. "Two-stage granulite formation in a Proterozoic magmatic arc (Ongole domain of the Eastern Ghats Belt, India): Part 2. LA-ICP-MS zircon dating and texturally controlled in-situ monazite dating." Precambrian Research 255 (December 2014): 467–84. http://dx.doi.org/10.1016/j.precamres.2014.05.024.

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Ganguly, Proloy, Kaushik Das, Sankar Bose, Gautam Ghosh, Yasutaka Hayasaka, and Hiroshi Hidaka. "U-Pb zircon and U-Th-total Pb monazite ages from the Phulbani domain of the Eastern Ghats Belt, India: Time constraints on high-grade metamorphism and magmatism in the lower crust." Precambrian Research 316 (October 2018): 1–23. http://dx.doi.org/10.1016/j.precamres.2018.07.024.

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DOBMEIER, CHRISTOPH, and MICHAEL M. RAITH. "On the origin of ‘arrested’ charnockitization in the Chilka Lake area, Eastern Ghats Belt, India: a reappraisal." Geological Magazine 137, no. 1 (January 2000): 27–37. http://dx.doi.org/10.1017/s0016756800003472.

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Arrested-type charnockite formation occurs in an assemblage of high-grade gneisses at several localities of the Chilka Lake area that belongs to the Proterozoic Eastern Ghats Belt of India. The isolated ellipsoidal domains are found exclusively in leucogranite (leptynite) bands that intruded lit-par- lit interbanded granulite-grade supracrustal and intermediate igneous rocks (khondalite–enderbite). Macrostructures and microfabrics document a multiple deformation of the rock assemblage under high-grade conditions. The intrusion of the leucogranitic melts separates a first episode of deformation, D1, from a younger progressive deformation, D2–D4. A transpressive regime and inhomogeneous deformation is indicated for D2–D4 by the associated structures and fabrics. But quartz c-axis patterns show that pure shear prevailed during the closing stages of deformation. The spatial distribution and orientation of the ellipsoidal charnockite domains within the host leptynite and the orientation pattern of orthopyroxene c-axes inside the domains provide evidence for a synkinematic in situ formation of the domains during D3, through partial breakdown of the leptynite assemblage (Bt+Grt+Qtz+Fl1[rlhar ]Opx+Fsp+Ilm+Fl2/L). Local fluid migration along steep foliation planes associated with large-scale D3 folds triggered the reaction. Orthopyroxene blastesis was confined to the centre of the domains, and an envelope formed in which the residing fluid caused secondary intergranular formation of chlorite, ore and carbonate, imparting the domains' typical greenish-brown charnockite colour. The shape of the envelope, which varies from prolate in limbs to oblate in hinges of D3 folds, is responsive to the local stress field. Comparison of chemical rock compositions supports the in situ formation of charnockite in leptynite. Subtle compositional differences are controlled by the changing mineralogy. Compared to the host leptynite, the charnockite domains are enriched in K2O, Ba, Rb and Sr, but depleted in FeO*, MnO, Y and Zr. The data obtained in this study provide conclusive evidence that the ellipsoidal charnockite domains do not represent remnants of stretched enderbite layers as proposed by Bhattacharya, Sen & Acharyya, but formed in situ in the leptynite as a result of localized synkinematic fluid migration late in the deformation history.
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Raith, Michael M., Karen Rickers, and Klaus Mezger. "Nd Isotopic Mapping of Crustal Domains in the Eastern Ghats Belt of India: Implications for the Indo-Antarctic Terrane Assembly Within Rodinia and Gondwana." Gondwana Research 4, no. 4 (October 2001): 743–44. http://dx.doi.org/10.1016/s1342-937x(05)70534-7.

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Sarkar, Tapabrato, Volker Schenk, and Jasper Berndt. "Formation and evolution of a Proterozoic magmatic arc: geochemical and geochronological constraints from meta-igneous rocks of the Ongole domain, Eastern Ghats Belt, India." Contributions to Mineralogy and Petrology 169, no. 1 (January 2015). http://dx.doi.org/10.1007/s00410-014-1096-1.

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Дисертації з теми "Eastern Ghats Domain"

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Sarkar, Tapabrato [Verfasser]. "Formation and evolution of a Proterozoic magmatic arc – the Ongole domain of the Eastern Ghats Belt, India / Tapabrato Sarkar." Kiel : Universitätsbibliothek Kiel, 2014. http://d-nb.info/1052529240/34.

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Schneider, A. N. "Protolith age and role in tectonic significance of the Eastern Ghats Domain, east India." Thesis, 2010. http://hdl.handle.net/2440/106235.

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U/Pb age analyses were conducted on detrital zircons from Khondalites in the Eastern Ghats Belt (EGB) in eastern peninsular India. This study was aimed at determining detrital ages to help understand the nature of the protolith to the metasedimentary rocks. These khondalite terrains make up the most extensive terrains in the EGB yet they are poorly understood. They are important because they help constrain timing of tectonism in the Mesoproterozoic and the formation of Rodinia and Eastern Gondwana. There were very few detrital zircons in the samples collected from the EGB and age analyses could not be made from them. Metamorphic ages were recorded from metamorphic/metamorphically recrystallised zircons. The age of metamorphism recorded in these zircons is approximately 900 Ma. This age agrees with metamorphic ages predicted from previous studies. This metamorphism is a result of the collisional orogeny that amalgamated eastern India with eastern Antarctica in the Mesoproterozoic. A Pan-African overprint has been recorded in the zircon ages which range from 660-560 Ma. These are predicted to be from lead loss due to metamorphism and can be seen on the concordia plots for U/Pb age data.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2010
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Henderson, B. J. "The tectonic evolution of the Ongole Domain, India: a metamorphic and geochronological approach." Thesis, 2011. http://hdl.handle.net/2440/96173.

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The Ongole Domain, situated in the southern Eastern Ghats Belt, exposes an assemblage of granulite facies metasedimentary and metaigneous rocks that preserve fundamental evidence for the Paleoproterozoic-Mesoproterozoic reconstruction of the supercontinent Nuna. LA-ICP-MS detrital zircon data from metasedimentary rocks constrain the timing of deposition for the sedimentary precursors, to between ca. 1850-1750 Ma. Lu-Hf isotopic data from detrital zircons provide a wide range of εHf values between -18 and +10, and TDM of ca. 3.2- 2.6 Ga. The Mesoarchean to Paleoproterozoic detrital components display geochemical similarities with the Napier Complex, the North Australian Craton and to a lesser extent, the North China Craton. U-Pb zircon and monazite geochronology have identified three episodes of metamorphism in the Ongole Domain; at ca. 1750, 1640 and 1590 Ma. Peak P-T estimates of 900 - 910°C and 9 - 9.2 kbar are calculated for metamorphism associated with collisional orogenesis, between ca. 1640-1590 Ma. Ti-in-zircon thermometry independently constrains the UHT conditions, yielding estimates of 935 ± 55°C. U-Pb geochronology and trace element analysis of zircon grains from metaigneous rocks confirm syn-tectonic magmatism occurred in the Ongole Domain between ca. 1640-1570 Ma. The results provide support for paleogeographic reconstructions that link the southern Eastern Ghats Belt and East Antarctica during the late Paleoproterozoic
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Earth and Environmental Sciences, 2011
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Тези доповідей конференцій з теми "Eastern Ghats Domain"

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Behera, Soumya Ranjan, Lopamudra Saha, D. K. Pal, and A. K. Champati. "Proterozoic Tectonics from the Northern Domain of the Eastern Ghats Belt." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.156.

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Saikia, Dicton. "Growth of coronal garnet in Koraput Anorthosite Pluton, Eastern Ghats Belt (Domain 2), India, and implications for Gondwanaland assembly." In Goldschmidt2022. France: European Association of Geochemistry, 2022. http://dx.doi.org/10.46427/gold2022.8537.

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