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petrography of charnockite

Lecture notes in Earth Sciences 120. J Geol Soc India 94:9–22. J Petrol 25:956–983, Peng P, Qin Z, Sun F, Zhou X, Guo J, Zhai M, Ernst RE (2019) Nature of charnockite and Closepet granite in thr Dharwar Craton: implications for the architecture of the Archean crust. Dash, DOI:, Over 10 million scientific documents at your fingertips, Not logged in Khondalite is found in the Eastern Ghats between Vijayawada and Cuttack in India. Geological Survey of Nigeria, Kaduna, pp 93–102, Omitogun AA, Caby R, Debat P (1991) Le métamorphism Pan-African de la partie centrale de la zone mobile du Nigéria., Caby R (1989) Precambrian terrane of Benin-Nigeria and Northeast Brazil and Proterozoic Atlantic fit barks. © 2020 Springer Nature Switzerland AG. ), Micas. that, with the availability recent publications related to the . assessing petrography a nd Mineralogy of rock types fro m vada . Petrography and geochemistry studies provide information whether to undertake an in-depth appraisal or not. The charnockite patches that occur within leptynite host, in and around Jenapore, northern sec- tor of the Eastern Ghats granulite belt, are disposed in a linear fashion and generally have sharp lithological contact with the host leptynite. Petrogenesis of charnockites is related to intra-crustal melting processes. Four-stage episodic crustal evolution model is proposed for the Kerala Khondalite belt. Petrografia e Geoquímica do Complexo Charnockítico de Aimorés: Um Exemplo de Plutonismo Pós-orogênico do Cinturão Araçuaí/Ribeira =Petrography and Geochemistry of the Aimorés Charnockitic Complex: An Example of Post-orogenic Plutonism of the Araçuaí/Ribeira Belt, Okeke PO, Meju MA (1985) Chemical evidence for the sedimentary origin of Igarra supracrustal rocks, S.W. Rocks of the charnockite series (Holland,1900) or the charnockite- anorthosite suite of rocks (Goldschmidt,1916) are widespread in Precambrian terranes.Often the entire range of compositions from granitic to anorthositic varieties occurs in close proximity. They either represent dry (H 2 O-poor) felsic magmas that are emplaced in the lower crust or granitic intrusions that have been dehydrated during a subsequent granulite facies metamorphic event. Chlorite and muscovite occur as secondary minerals. In: Oluyide PO, Mbonu WC, Ogezi AEO, Egbuniwe IG, Ajibade AC, Umeji AC (eds) Precambrian geology of Nigeria. Cambridge University Press, Lyubetskaya T, Korenaga J (2007) Chemical composition of Earth’s primitive mantle and its variance: 1. J Petrol 46:275–290. Earth Sci Malaysia 2(1):29–36. We also appreciate the editorial guidance and the invaluable suggestions of Roberto Braga. Based on geochemical characteristics, the orthopyroxene-bearing, felsic ortho-granulites (charnockites sensu lato) of KKB are classified into (1) tonalitic (TC), (2) granitic (GC), and (3) augen (AC) suites. West Gondwana: pre-Cenozoic correlations across the South Atlantic region. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Petrology and geochemistry of charnockites (felsic ortho-granulites) from the Kerala Khondalite Belt, Southern India: Evidence for intra-crustal melting, magmatic differentiation and episodic crustal growth. In der Petrologie gab es bis in die jüngste Zeit die Auffassung, dass die Charnockite zu den Graniten gehören, also magmatischen Ursprungs sind. © 2016 Elsevier B.V. All rights reserved. Petrography and geochemistry have been part of the methods used in the evaluation of natural resource of which sandstone is one (Bheemalingeswara and Tadesse 2009). In: Oluyide PO, Mbonu WC, Ogezi AEO, Egbuniwe IG, Ajibade AC, Umeji AC (eds) Precambrian geology of Nigeria. J Afr Earth Sci 13(3–4):387–395, Rajesh HM (2004) The igneous charnockite – high-K alkali-calcic I-type granite – incipient charnockite association in Trivandrum Block, southern India. Geol Rundsch 70(3):897–909, Odeyemi IB (1988) Lithostratigraphy and structural relationships of the Upper Precambrian metasediments in Igarra area, southwestern Nigeria. Inclusions within garnet in the charnockite are used to identify the mineral assemblage in the granulite during peak metamorphism., McLennan SM (1989) Rare earth elements in sedimentary rocks: influence of provenance and sedimentary processes. Nigeria. The use of these techniques has become very important in the search for hydrocarbon reservoirs. minerals like the pyroxenes from the different members of the charnockite group in the elucidation of their petrogenesis. of P.G. J Mining Geol 24:101–106, Okonkwo CT, Ganev VY (2012) U-Pb geochronology of the Jebba granitic gneiss and its implications for the Paleoproterozoic evolution of Jebba area, southwestern Nigeria. Centenary Societe Geologique de Belgique, Liege, pp 349–360, Streckeisen AL (1976) To each plutonic rock its proper name., Kolawole MS, Onimisi M, Olobaniyi SB (2017) Field occurrence and structural characteristics of basement rocks around Kabba-Bunu area in part of Kabba-Lokoja-Igarra Schist Belt, southwestern Nigeria. We use cookies to help provide and enhance our service and tailor content and ads. Akin Jinad & Co, Ibadan, pp 45–70, Olobaniyi SO (2003) Geochemistry of semi-pelitic schist of Isanlu area, Southwestern Nigeria: implication for the geodynamic evolution of the Egbe–Isanlu schist belt. J Afr Earth Sci 9(2):227–234, Dada SS, Tubosun IA, Lancelot JR, Lar AU (1993) Late Archaean U-Pb age for the reactivated basement of northeastern Nigeria. Global J Pure Appl Sci 23:263–274. Akin Jinad and Co., Ibadan, pp 29–44, Dada SS (2008) Proterozoic evolution of the Nigeria–Borborema Province., Maniar PD, Piccoli PM (1989) Tectonic discrimination of granitoids. The TC is also characterized by positive to slightly negative europium anomalies (Eu/Eu* = 0.7 to 1.67). Data on field, petrography, geoc hemistry and mineralization of these granitoids cumulative ly demonstrate that they are . Propose a new classification scheme for charnockites of the Kerala Khondalite belt. patches within the gneisses inferred to be incipient., Obaje NG (2009) Geology and mineral resources of Nigeria. It may also contain sillimanite and graphite. Sometimes the patches and foliations of the host The second stage corresponds to the production of TTG magmas by melting of the over-thickened oceanic-arc crust, subsequent to basaltic underplating during Palaeoproterozoic (ca. The geochemical features of the felsic ortho-granulite suite, substantiated with published geochronological data on members of the TC, GC, and AC suites, suggest a four-stage crustal evolution of the KKB.<0921:UTEOPM>2.3.CO;2, Ferré EC, Deleris J, Bouchez JL, Lar AU, Peucat JJ (1996) The Pan-African reactivation of Eburnean and Archaean provinces in Nigeria: structural and isotopic data., Elueze AA (1988) Geology of the Precambrian Schist Belt in Ilesha area, southwestern Nigeria. Significant negative Eu anomalies (Eu/Eu* = 0.18–0.91; average 0.50) and low Sr (65–690 ppm) are also noted in the GC. J Afr Earth Sci 6(1):67–77, Olarewaju VO (1999) Fluid inclusion studies of coarse-grained charnockitic and the hybrid rocks in Ukpilla area, southwestern Nigeria., Fedo CM, Nesbitt HW, Young GM (1995) Unraveling the effects of potassium metasomatism in sedimentary rocks and paleosols, with implications for paleoweathering conditions and provenance. We also propose a possible alternative process to form charnockite from Grt-Bt gneiss through In: Kogbe CA (ed) Geology of Nigeria. Petrography and Geochemistry of Dolerite Dykes at Gingee Area, Villupuram District, Tamilnadu, India M ... charnockite terrain the migmatite complex is made up of hornblende-biotite gneiss, pink augen gneisses and pink migmatite with younger intrusions of Tindivanam and Gingee Granites (2250 Ma) and basic . Precambrian Res 62:83e101, Tubosun IA, Lancelot JR, Rahaman MA, Ocan OO (1984) U-Pb Pan-African ages of two charnockite-granite association from southwestern Nigeria., Gillespie MR, Styles MT (1999) Rock classification scheme volume 1: classification of igneous rocks. W e hope., Cox R, Lowe DR, Cullers RL (1995) The influence of sediment recycling and basement composition on evolution of mudrock chemistry in the southwestern United States. Glob J Geol Sci 1(2):1–7, Ekwueme BN (2003b) The Precambrian geology and evolution of the southeastern Nigerian Basement Complex., Okunlola OA, Okoroafor RE (2009) Geochemical and petrogenetic features of schistose rocks of the Okemesi fold belt, Southwestern Nigeria. 2.1 Ga). Comptes Rendus de l'Académie de Science, Paris 313(2):1417–1423, Oyawale AA, Ocan OO (2020) Migmatization process and the nature of transition from amphibolite to granulite facies metamorphism in Ikare area Southwestern Nigeria. Google Scholar, Ademeso OA (2010) Field and petrographic relationships between the charnockitic and associated granitic rock, Akure area, southwestern Nigeria. Geol 23:921–924. J Afr Earth Sci 109:131–142. Petrography. Immediate online access to all issues from 2019. Inter Geol Rev 56(4):481–500. Kanimozhi and Selvaraj , IJCRD 2017,Vol :5 (2) 22- 29 23 dykes (Proterozoic). Geol Soc Lond Spec Publ 294:121–136. Precambrian Res 55:469–489, Chappell BW, White AJR (2001) Two contrasting granite types: 25 years later. The average modal composition is 35% 31% 19% 4% 12% respectively. In: Castro , Fernandez C, Virgneresse JL (eds) Understanding granites: integrating new and classical techniques. In this paper, we try to bridge this gap with detailed results on orthopyroxene-bearing, felsic ortho-granulites spread over the entire KKB and propose a new petrogenetic and crustal evolution model. Am J Sci 313:517–539, Costa FG, Klein EL, Lafon JM, Milhomem Neto JM, Galarza MA, Rodrigues JB, Naleto JLC, Corrêa Lima RG (2018) Geochemistry and U–Pb–Hf zircon data for plutonic rocks of the Troia Massif, Borborema Province, NE Brazil: evidence for reworking of Archean and juvenile Paleoproterozoic crust during Rhyacian accretionary and collisional tectonics. volume 13, Article number: 780 (2020) The granites probably originated from mixed melts derived from lower- to mid-crustal tonalites-trondhjemites-granodiorites and/or subducted metagreywackes and mantle-derived magmas (probably the charnockitic melt and/or its progenitor). In: Oluyide PO, Mbonu WC, Ogezi AEO, Egbuniwe IG, Ajibade AC, Umeji AC (eds) Precambrian geology of Nigeria. The garnet-biotite schist, calc-silicate gneiss and quartzite represent metamorphosed immature to slightly mature sedimentary rocks, probably greywacke, marl and subarkose, respectively, that were sourced from intermediate–acid rocks which underwent low–moderate chemical weathering with minor contribution from recycled sediment sources and deposited in active continental environments. Similar chemical characteristics are shown by the AC, with ferroan nature (average Mg# = 21), low to moderate degrees of REE fractionation (average [La/Yb]N = 26), high contents of Y (71–99 ppm; average 87), and low Sr/Y (average 2) ratios with significant negative Eu anomalies (Eu/Eu* = 0.03–0.31; average 0.23) and low Sr (average 160 ppm) contents. Acta Geochim 38:734–752. J Geol 109:399–406, Kumar S, Gupta S, Sensarma S, Bhutani R (2020) Proterozoic felsic and mafic magmatism in India: implications for crustal evolution through crust-mantle interactions. Geol Soc Amer Bull 101:635–643, Martignole J (1979) Charnockite genesis and the Proterozoic crust. In: Krӧner A (ed) Proterozoic lithospheric evolution 17., Archanjo CJ, Viegas LGF, Hollanda MHBM, Souza LC, Liu D (2013) Timing of the HT/LP transpression in the Neoproterozoic Seridó Belt (Borborema Province, Brazil): constraints from U-Pb (SHRIMP) geochronology and implications for the connections between NE Brazil and West Africa. that may contain orthopyroxene plus quartz. Geological Survey of Nigeria, Kaduna, pp 241–256, Rahaman MA, Tubosun IA, Lancellot JR (1991) U-Pb geochronology of potassium syenites from southwestern Nigeria and timing of deformation events during the orogeny. J Min Geol 35(1):1–7, Olarewaju VO (2006) The charnockitic intrusives of Nigeria. Charnockites, khondalites, cordierite gneisses, calc-silicate rocks and grey and pink granite are the main lithotypes. The zircon crystallization ages (1.89 and 1.85 Ga) of the GC indicate arc accretion occurred during the Palaeoproterozoic. Towards the fulfilment of this objective, some of the optical properties of pyroxenes from different types Recommendations of the IUGS sub-commission on the systematics of igneous rocks. Granites are felsic rocks that usually contain no or very little pyroxene. Inter Geol Rev 59:1861–1884. Copyright © 2020 Elsevier B.V. or its licensors or contributors. The first stage is marked by the formation of an over-thickened oceanic-arc. Charnockite and related neosome development in the Eastern Ghats, Orissa, India: petrographic evidence - Volume 75 Issue 3 - Adrian F. Park, B. Petrography and Geochemistry of A-type Granitoid and Associated Charnockite from the Basement Complex of Bangladesh Carbonates Evap 32:513–524. Afr Geosci Rev 15(2):145–158, Ekwueme BN (1987) Structural orientations and Precambrian deformational episodes of Uwet area Oban massif, SE Nigeria. J Geophys Res 112:B03211. Part of Springer Nature., Bhatia MR, Crook KAW (1986) Trace element characteristics of greywackes and tectonic setting discrimination of sedimentary basins. Lithos 200:22–34. The charnockites and granites of Okpella show primary magmatic mineralogy and geochemical characteristics. This is a preview of subscription content, log in to check access. J Min Geol 28(2):255–263, Ogunyele AC, Obaje SO, Akingboye AS (2018) Lithostructural relationships and petrogenetic affinities of the Basement Complex rocks around Okpella, southwestern Nigeria. J Petrology 54(1):3–40. Canadian Mineral 48(4):729–750., Sekaran MC, Bhutani R, Balakrishnan S (2016) Rb–Sr and Sm–Nd study of granite–charnockite association in the Pudukkottai region and the link between metamorphism and magmatism in the Madurai Block. Chem Geol 104:1–37, Cooray PG (1972) In: Dessauvagie TFJ, Whiteman AJ (eds) A note on the charnockites of Akure–Ado-Ekiti area, Western Nigeria. Rendiconti Soc Italiana Mineralogia Petrologia 43(2):543–554, Hubbard FH, Whitley JE (1978) Rapakivi granite, anorthosite and charnockitic plutonism. In: Oshin O (ed) The basement complex of Nigeria and its mineral resources (a tribute to prof MAO Rahaman). Department of Earth Sciences, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria, Abimbola Chris Ogunyele, Solomon Omale Obaje, Adedibu Sunny Akingboye, Ayotunde Oluwadamilare Babalola & Abiodun Tobiloba Olufunmilayo, Department of Chemical Sciences, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria, Department of Chemistry, University of Pretoria, Pretoria, South Africa, You can also search for this author in cursory attention is given to charnockite petrography. In: Oluyide PO, Mbonu WC, Ogezi AEO, Egbuniwe IG, Ajibade AC, Umeji AC (eds) Precambrian geology of Nigeria. Petrography is a branch of petrology that focuses on detailed descriptions of rocks.Someone who studies petrography is called a petrographer.The mineral content and the textural relationships within the rock are described in detail. They are silicic (> 63 wt% SiO2), metaluminous to peraluminous, high-K calc-alkaline, ferroan, post-collisional granitoids. In: Lentz DR (ed.) Inter J Emerging Trends Eng Dev 2(2):35–46, Jimoh OA, Ariffin KS, Hussin HB, Habeeb AA (2016) Characterization and assessment of Okpella metacarbonate deposit in Nigeria. The petrography showed the porphyritic granite having plagioclase, quartz, biotite, hornblende, mymerkite as major minerals and apatite as accessory (Fig.6). The mafic rocks are pyribolite and less common pyriclasite. Glob J Geol Sci 1(2):113–127, Olobaniyi SB, Annor AE (2003) Petrology and age implication of ultramafic schist in the Isanlu area of the Isanlu-Egbe Schist Belt, southwestern Nigeria., Ikoro DO, Okereke CO, Agumanu AE, Isreal HO, Ekeocha NE (2012) Geochemistry of the calc-silicate rocks of Igarra, southwestern Nigeria. The Neoproterozoic charnockite–granite association of Okpella intrudes metasedimentary and migmatite-gneiss complex rocks in the eastern Igarra Schist Belt, southwestern Nigeria. Ogunyele, A.C., Obaje, S.O., Akingboye, A.S. et al. Geosci Frontiers 3(6):789–800. J Mining Geol 3:25–32, Hubbard FH (1988) Basic intrusion, charnockite–rapakivi granite plutonism and crustal depletion, S.W. Hence, the rarely outcrop of the peraluminous charnockite severely . Episodes 43(1):203–230, Laurent O, Martin H, Moyen JF, Doucelance R (2014) The diversity and evolution of late-Archean granitoids: evidence for the onset of “modern-style” plate tectonics between 3.0 and 2.5 Ga. Lithos 205:208–235, Le Maitre RW (2002) Igneous rocks: a classification and glossary of terms. Precambrian Res 34:269–289, Ekwueme BN (2003a) Geochemistry of crystalline basement rocks, SW Ugep, Nigeria. The Kerala Khondalite Belt (KKB) of the southern India encompasses volumetrically significant magmatic components. Contrib Mineral Petrol 154:591–606.

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