Retrogression of Orthopyroxene-bearing Gneiss of Iboropa Akoko, Southwestern Nigeria

[1] Holland, T.H. (1900): The charnockite series, a group of Archean hypersthenic rocks in Peninsular India. Memoir Geological Survey of India, 28, 192–249. HollandT.H. 1900 The charnockite series, a group of Archean hypersthenic rocks in Peninsular India Memoir Geological Survey of India 28 192 249 Search in Google Scholar

[2] Anantha, I., T.R., N.K. (1978): Geochemical Comparison of Archaean Granulites in India with Proterozoic Granulites in Canada. AnanthaI. N.K.T.R. 1978 Geochemical Comparison of Archaean Granulites in India with Proterozoic Granulites in Canada 10.1016/S0166-2635(08)70102-6 Search in Google Scholar

[3] Dobmeier, C., Raith, M.M. (2000): On the origin of ‘arrested’ charnockitization in the Chilka Lake area, Eastern Ghats Belt, India: a reappraisal. Geological Magazine, 137(1), pp. 27–37. DobmeierC. RaithM.M. 2000 On the origin of ‘arrested’ charnockitization in the Chilka Lake area, Eastern Ghats Belt, India: a reappraisal Geological Magazine 137 1 27 37 10.1017/S0016756800003472 Search in Google Scholar

[4] Ghosh, J.G., de Wit, M.J., Zartman, R.E. (2004): Age and tectonic evolution of Neoproterozoic ductile shear zones in the Southern Granulite Terrain of India, with implications for Gondwana studies. Tectonics, 23(3), pp. 1–38. GhoshJ.G. de WitM.J. ZartmanR.E. 2004 Age and tectonic evolution of Neoproterozoic ductile shear zones in the Southern Granulite Terrain of India, with implications for Gondwana studies Tectonics 23 3 1 38 10.1029/2002TC001444 Search in Google Scholar

[5] Rajesh, H.M., Santosh, M. (2004): Charnockitic magmatism in southern India. Proceedings of the Indian Academy of Sciences - Earth & Planetary Sciences, 113(4), pp. 565–585. RajeshH.M. SantoshM. 2004 Charnockitic magmatism in southern India Proceedings of the Indian Academy of Sciences - Earth & Planetary Sciences 113 4 565 585 10.1007/BF02704023 Search in Google Scholar

[6] Le Maitre, R.W. (2002): Igneous Rocks: A Classification and Glossary of Terms. Cambridge University Press: Cambridge, 256 p. Le MaitreR.W. 2002 Igneous Rocks: A Classification and Glossary of Terms Cambridge University Press Cambridge 256 10.1017/CBO9780511535581 Search in Google Scholar

[7] Frost, B.R., Frost, C.D. (2008): On charnockites. Gondwana Research, 13, pp. 30–44. FrostB.R. FrostC.D. 2008 On charnockites Gondwana Research 13 30 44 10.1016/j.gr.2007.07.006 Search in Google Scholar

[8] Rajesh, H.M., Santosh, M. (2012): Charnockites and charnockites. Geoscience Frontiers, 3, pp. 737–744. RajeshH.M. SantoshM. 2012 Charnockites and charnockites Geoscience Frontiers 3 737 744 10.1016/j.gsf.2012.07.001 Search in Google Scholar

[9] Janardhan, A.S., Jayananda, M., Shankara, M.A. (1994): Formation and tectonic evolution of granulites from Biligirirangam and Nilgiri Hills, south India: Geochemical and isotopic constraints. Journal of the Geological Society of India, 44, pp. 27–40. JanardhanA.S. JayanandaM. ShankaraM.A. 1994 Formation and tectonic evolution of granulites from Biligirirangam and Nilgiri Hills, south India: Geochemical and isotopic constraints Journal of the Geological Society of India 44 27 40 Search in Google Scholar

[10] Friend, C.R.L. (1981): Charnockite and granite formation and influx of CO₂ at Kabbaldurga. Nature, 294, pp. 550–552. FriendC.R.L. 1981 Charnockite and granite formation and influx of CO₂ at Kabbaldurga Nature 294 550 552 10.1038/294550a0 Search in Google Scholar

[11] Hansen, E.C., Janardhan, A.S., Newton, R.C., Prame, W.K.B., Kumar, G.R.R. (1987): Arrested charnockite formation in southern India and Sri Lanka. Contributions to Mineralogy and Petrology, 96, pp. 225–244. HansenE.C. JanardhanA.S. NewtonR.C. PrameW.K.B. KumarG.R.R. 1987 Arrested charnockite formation in southern India and Sri Lanka Contributions to Mineralogy and Petrology 96 225 244 10.1007/BF00375236 Search in Google Scholar

[12] Srikantappa, C., Raith, M., Touret, J.L.R. (1992): Synmetamorphic high-density carbonic fluids in the lower crust: evidence from the Nilgiri granulites, Southern India. Journal of Petrology, 33(4), pp. 733–760. SrikantappaC. RaithM. TouretJ.L.R. 1992 Synmetamorphic high-density carbonic fluids in the lower crust: evidence from the Nilgiri granulites, Southern India Journal of Petrology 33 4 733 760 10.1093/petrology/33.4.733 Search in Google Scholar

[13] Raith, M., Srikantappa, C. (1993): Arrested charnockite formation at Kottavattam, Southern India. Journal of Metamorphic Geology, 11(6), pp. 815–832. RaithM. SrikantappaC. 1993 Arrested charnockite formation at Kottavattam, Southern India Journal of Metamorphic Geology 11 6 815 832 10.1111/j.1525-1314.1993.tb00192.x Search in Google Scholar

[14] Harley, S.L., Santosh, M. (1995): Wollastonite at Nuliyam, Kerala, South India: A reassessment of CO₂ infiltration and charnockite formation at a classic locality. Contributions to Mineralogy and Petrology, 120, pp. 83–94. HarleyS.L. SantoshM. 1995 Wollastonite at Nuliyam, Kerala, South India: A reassessment of CO₂ infiltration and charnockite formation at a classic locality Contributions to Mineralogy and Petrology 120 83 94 10.1007/BF00311009 Search in Google Scholar

[15] Yoshida, M., Santosh, M. (1994): A tectonic perspective of incipient charnockites in East Gondwana. Precambrian Research, 66(1–4), pp. 379–392. YoshidaM. SantoshM. 1994 A tectonic perspective of incipient charnockites in East Gondwana Precambrian Research 66 1–4 379 392 10.1016/0301-9268(94)90059-0 Search in Google Scholar

[16] Newton, R.C., Hansen, E.C. (1983): The origin of Proterozoic and late Archaean charnockites-evidence from field relations and experimental petrology. Geological Society of America Memorials, 161, pp. 167–178. NewtonR.C. HansenE.C. 1983 The origin of Proterozoic and late Archaean charnockites-evidence from field relations and experimental petrology Geological Society of America Memorials 161 167 178 10.1130/MEM161-p167 Search in Google Scholar

[17] Condie, K.C., Bowling, G.P., Allen, P. (1986): Origin of granites in an Archean high-grade terrane, southern India. Contributions to Mineralogy and Petrology, 92(1), pp. 93–103. CondieK.C. BowlingG.P. AllenP. 1986 Origin of granites in an Archean high-grade terrane, southern India Contributions to Mineralogy and Petrology 92 1 93 103 10.1007/BF00373967 Search in Google Scholar

[18] Bhattacharya, S. (2010): The charnockite problem, a twenty first century perspective. Natural Science, 2(04), p. 402. BhattacharyaS. 2010 The charnockite problem, a twenty first century perspective Natural Science 2 04 402 10.4236/ns.2010.24049 Search in Google Scholar

[19] Perchuk, L.L., Gerya, T.V. (1993): Fliud control of charnockitization. Chemical Geology, 108, pp 175–186. PerchukL.L. GeryaT.V. 1993 Fliud control of charnockitization Chemical Geology 108 175 186 10.1016/0009-2541(93)90323-B Search in Google Scholar

[20] Touret, J.L., Huizenga, J.M. (2012): Fluid-assisted granulite metamorphism: a continental journey. Gondwana Research, 21(1), pp. 224–235. TouretJ.L. HuizengaJ.M. 2012 Fluid-assisted granulite metamorphism: a continental journey Gondwana Research 21 1 224 235 10.1016/j.gr.2011.07.022 Search in Google Scholar

[21] Yang, Q.Y., Santosha, M., Tsunogaec, T. (2014): First report of Paleoproterozoic incipient charnockite from the North China Craton: Implications for ultrahigh-temperature metasomatism. Precambrian Research, 243, pp. 168–180. YangQ.Y. SantoshaM. TsunogaecT. 2014 First report of Paleoproterozoic incipient charnockite from the North China Craton: Implications for ultrahigh-temperature metasomatism Precambrian Research 243 168 180 10.1016/j.precamres.2014.01.004 Search in Google Scholar

[22] Rahaman, M.A. (1976): Review of the basement geology of Southwestern Nigeria. In: Geology of Nigeria, C.A. Kogbe (ed.). Elizabethan Publishing Co.: Lagos, pp. 41–58. RahamanM.A. 1976 Review of the basement geology of Southwestern Nigeria In: Geology of Nigeria KogbeC.A. (ed.). Elizabethan Publishing Co. Lagos 41 58 Search in Google Scholar

[23] Rahaman, M.A., Ocan, O. (1978): On relationships in the Precambrian migmatitic gneisses of Nigeria. Nigerian Journal of Mining and Geology, 15, pp. 23–32. RahamanM.A. OcanO. 1978 On relationships in the Precambrian migmatitic gneisses of Nigeria Nigerian Journal of Mining and Geology 15 23 32 Search in Google Scholar

[24] Heier, K.S. (1973): A Discussion on the evolution of the Precambrian crust-Geochemistry of granulite facies rocks and problems of their origin. Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 273(1235), pp. 429–442. HeierK.S. 1973 A Discussion on the evolution of the Precambrian crust-Geochemistry of granulite facies rocks and problems of their origin Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences 273 1235 429 442 Search in Google Scholar

[25] Hubbard, F.H. (1975): Precambrian crustal development in western Nigeria: indications from the Iwo region. Bulletin of the Geological Society of America, 86, pp. 548–554. HubbardF.H. 1975 Precambrian crustal development in western Nigeria: indications from the Iwo region Bulletin of the Geological Society of America 86 548 554 10.1130/0016-7606(1975)86<548:PCDIWN>2.0.CO;2 Search in Google Scholar

[26] Ferré, E.C., Caby, R. (2007): Granulite facies metamorphism and charnockite plutonism: examples from the Neoproterozoic Belt of northern Nigeria. Proceedings of “the Geologists’ Association, US, 47–54. FerréE.C. CabyR. 2007 Granulite facies metamorphism and charnockite plutonism: examples from the Neoproterozoic Belt of northern Nigeria Proceedings of “the Geologists’ Association US 47 54 10.1016/S0016-7878(07)80046-0 Search in Google Scholar

[27] Sacchi, R. (1968): The geology of Kabba-Lokoja region in south-western Nigeria. Bolletino della Società geologica italiana, 87, 341–367. SacchiR. 1968 The geology of Kabba-Lokoja region in south-western Nigeria Bolletino della Società geologica italiana 87 341 367 Search in Google Scholar

[28] Dempster A.N. (1967): (GSN). 1:250,000 Sheet 61, Akure. DempsterA.N. 1967 (GSN). 1:250,000 Sheet 61, Akure Search in Google Scholar

[29] Rahaman, M.A., Ocan, O. (1988): The Nature of Granulite of Granulite Facies Metamorphism in Ikare Area, Southwestern Nigeria. In: Precambrian Geology of Nigeria. GSN pub., pp. 157–163. RahamanM.A. OcanO. 1988 The Nature of Granulite of Granulite Facies Metamorphism in Ikare Area, Southwestern Nigeria In: Precambrian Geology of Nigeria GSN pub. 157 163 Search in Google Scholar

[30] Cameron, M., Papike, J.J. (1981). Structural and chemical variations in pyroxenes. American Mineralogist, 66(1–2), pp. 1–50. CameronM. PapikeJ.J. 1981 Structural and chemical variations in pyroxenes American Mineralogist 66 1–2 1 50 Search in Google Scholar

[31] Bhattacharyya, C. (1971): An evaluation of the chemical distinctions between igneous and metamorphic orthopyroxenes. American Mineralogist: Journal of Earth and Planetary Materials, 56(3–4_Part_1), pp. 499–506. BhattacharyyaC. 1971 An evaluation of the chemical distinctions between igneous and metamorphic orthopyroxenes American Mineralogist: Journal of Earth and Planetary Materials 56 3–4_Part_1 499 506 Search in Google Scholar

[32] Oyawoye, M.O. (1964): The contact relationship of charnockite and granite gneiss at Bauchi, Northern Nigeria: Geological Magazine, v. 101, pp. 138–144. OyawoyeM.O. 1964 The contact relationship of charnockite and granite gneiss at Bauchi, Northern Nigeria Geological Magazine 101 138 144 10.1017/S0016756800048573 Search in Google Scholar

[33] Harlov, D.E., Johansson, L., Van Den Kerkhof, A., Förster, H.J. (2006a): The role of advective fluid flow and diffusion during localized, solid-state dehydration: Söndrum Stenhuggeriet, Halmstad, SW Sweden. Journal of Petrology, 47(1), pp. 3–33. HarlovD.E. JohanssonL. Van Den KerkhofA. FörsterH.J. 2006a The role of advective fluid flow and diffusion during localized, solid-state dehydration: Söndrum Stenhuggeriet, Halmstad, SW Sweden Journal of Petrology 47 1 3 33 10.1093/petrology/egi062 Search in Google Scholar

[34] Rigby, M.J., Droop, G.T.R. (2011): Fluid-absent melting versus CO₂ streaming during the formation of pelitic granulites: A review of insights from the cordierite fluid monitor. Origin and evolution of Precambrian high-grade gneiss terranes, with special emphasis on the Limpopo complex of Southern Africa, 207, p. 39. RigbyM.J. DroopG.T.R. 2011 Fluid-absent melting versus CO₂ streaming during the formation of pelitic granulites: A review of insights from the cordierite fluid monitor Origin and evolution of Precambrian high-grade gneiss terranes, with special emphasis on the Limpopo complex of Southern Africa 207 39 Search in Google Scholar

[35] Harlov, D.E. (2012): The potential role of fluids during regional granulite-facies dehydration in the lower crust. Geoscience Frontiers, 3(6), pp. 813–827. HarlovD.E. 2012 The potential role of fluids during regional granulite-facies dehydration in the lower crust Geoscience Frontiers 3 6 813 827 10.1016/j.gsf.2012.03.007 Search in Google Scholar

[36] Ravindra Kumar, G.R., Chacko, T. (1986): Mechanisms of charnockite formation and breakdown in southern Kerala: implications for the origin of the southern Indian granulite terrain. Journal of the Geological Society of India, 28(4), pp. 277–288. Ravindra KumarG.R. ChackoT. 1986 Mechanisms of charnockite formation and breakdown in southern Kerala: implications for the origin of the southern Indian granulite terrain Journal of the Geological Society of India 28 4 277 288 Search in Google Scholar

[37] Lasnier, B. (1977): Persistance d’une série granulitique au coeur du Massif Central français, Haut-Allier: les termes basiques, ultrabasiques et carbonates. Ph.D. Thesis. Université de Nantes, laboratoire de pétrologie et de minéralogie: Nantes, 351 p. LasnierB. 1977 Persistance d’une série granulitique au coeur du Massif Central français, Haut-Allier: les termes basiques, ultrabasiques et carbonates Ph.D. Thesis. Université de Nantes, laboratoire de pétrologie et de minéralogie Nantes 351 Search in Google Scholar

[38] Srikantappa, C., Prakash Narasimha, K.N. (1988): Retrogression of charnockites in Moyar Shear Zone, Tamil Nadu. Journal of the Geological Society of India, 11, pp. 117–124. SrikantappaC. Prakash NarasimhaK.N. 1988 Retrogression of charnockites in Moyar Shear Zone, Tamil Nadu Journal of the Geological Society of India 11 117 124 Search in Google Scholar

[39] Himmelberg, G.R., Phinney, W.C. (1967): Granulite-Facies Metamorphism, Granite Falls-Montevideo Area, Minnesota. Journal of Petrology, 8(3), pp. 325–348. HimmelbergG.R. PhinneyW.C. 1967 Granulite-Facies Metamorphism, Granite Falls-Montevideo Area, Minnesota Journal of Petrology 8 3 325 348 10.1093/petrology/8.3.325 Search in Google Scholar

[40] Allen, P., Condie, K.C., Narayana, B.L. (1985): The geochemistry of prograde and retrograde charnockite-gneiss reactions in southern India. Geochimica et Cosmochimica Acta, 49(2), pp. 323–336. AllenP. CondieK.C. NarayanaB.L. 1985 The geochemistry of prograde and retrograde charnockite-gneiss reactions in southern India Geochimica et Cosmochimica Acta 49 2 323 336 10.1016/0016-7037(85)90026-2 Search in Google Scholar

[41] Oyawale, A.A., Ocan O.O. (2020): Migmatization process and the nature of transition from amphibolite to granulite facies metamorphism in Ikare area Southwestern Nigeria. Journal of Geology and Mining Research, 12(2), pp. 45–64. OyawaleA.A. OcanO.O. 2020 Migmatization process and the nature of transition from amphibolite to granulite facies metamorphism in Ikare area Southwestern Nigeria Journal of Geology and Mining Research 12 2 45 64 10.5897/JGMR2020.0334 Search in Google Scholar

[42] Cooray, P.G. (1961): The Geology of the area around Rangala: Ceylon Geol. Survey Mem., 2, 138 p. CoorayP.G. 1961 The Geology of the area around Rangala Ceylon Geol. Survey Mem. 2 138 Search in Google Scholar

[43] Cooray, P.G. (1962): Charnockites and their associated gneisses in the Pre-Cambrian of Ceylon. The Quarterly journal of the Geological Society of London, 118, pp. 239–273. CoorayP.G. 1962 Charnockites and their associated gneisses in the Pre-Cambrian of Ceylon The Quarterly journal of the Geological Society of London 118 239 273 10.1144/gsjgs.118.1.0239 Search in Google Scholar

[44] Raase, P. (1974): Al and Ti contents of hornblende, indicators of pressure and temperature of regional metamorphism. Contributions to mineralogy and petrology, 45(3), pp. 231–236. RaaseP. 1974 Al and Ti contents of hornblende, indicators of pressure and temperature of regional metamorphism Contributions to mineralogy and petrology 45 3 231 236 10.1007/BF00383440 Search in Google Scholar

[45] Spear, F.S. (1981): An experimental study of hornblende stability and compositional variability in amphibolite. American Journal of Science, 281(6), pp. 697–734. SpearF.S. 1981 An experimental study of hornblende stability and compositional variability in amphibolite American Journal of Science 281 6 697 734 10.2475/ajs.281.6.697 Search in Google Scholar

[46] Dymek, R.F. (1983): Titanium, aluminum and interlayer cation substitutions in biotite from high-grade gneisses, West Greenland. American Mineralogist, 68(9–10), pp. 880–899. DymekR.F. 1983 Titanium, aluminum and interlayer cation substitutions in biotite from high-grade gneisses, West Greenland American Mineralogist 68 9–10 880 899 Search in Google Scholar

[47] Spry, A. (1969): Metamorphic Textures. Pergamon Press, Oxford: England, 358 p. SpryA. 1969 Metamorphic Textures Pergamon Press, Oxford England 358 10.1016/B978-0-08-013316-4.50007-4 Search in Google Scholar

[48] Cayzer, N. (2002): Feldspar microtextures and the cooling histories of high-grade terrains. Ph.D. Thesis. University of Edinburgh, U.K., 300 p. CayzerN. 2002 Feldspar microtextures and the cooling histories of high-grade terrains Ph.D. Thesis. University of Edinburgh U.K. 300 Search in Google Scholar

[49] Fyfe, W.S. (1973): The granulite facies, partial melting and the Archaean crust. Philosophical Transactions of the Royal Society of London. Series A, 273, pp. 457–461. FyfeW.S. 1973 The granulite facies, partial melting and the Archaean crust Philosophical Transactions of the Royal Society of London. Series A 273 457 461 10.1098/rsta.1973.0011 Search in Google Scholar

[50] Olarewaju, V.O. (1987): Charnockite-granite association in SW Nigeria: rapakavi granite type and charnockitic plutonism in Nigeria? Journal of African Earth Sciences, 6(1), pp. 67–77. OlarewajuV.O. 1987 Charnockite-granite association in SW Nigeria: rapakavi granite type and charnockitic plutonism in Nigeria? Journal of African Earth Sciences 6 1 67 77 10.1016/0899-5362(87)90108-4 Search in Google Scholar

[51] Bhattacharya, S. Chaudhary, A.K., Basei, M. (2012): Original nature and source of Khondalites in the Eastern Ghats Province, India. Geological Society, London, Special Publications, 365, 147–159. BhattacharyaS. ChaudharyA.K. BaseiM. 2012 Original nature and source of Khondalites in the Eastern Ghats Province, India Geological Society, London, Special Publications 365 147 159 10.1144/SP365.8 Search in Google Scholar