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Origin of Neoproterozoic ophiolitic peridotites in south Eastern Desert, Egypt, constrained from primary mantle mineral chemistry

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Abstract

The ophiolitic peridotites in the Wadi Arais area, south Eastern Desert of Egypt, represent a part of Neoproterozoic ophiolites of the Arabian-Nubian Shield (ANS). We found relics of fresh dunites enveloped by serpentinites that show abundances of bastite after orthopyroxene, reflecting harzburgite protoliths. The bulk-rock chemistry confirmed the harzburgites as the main protoliths. The primary mantle minerals such as orthopyroxene, olivine and chromian spinel in Arais serpentinites are still preserved. The orthopyroxene has high Mg# [=Mg/(Mg + Fe2+)], ~0.923 on average. It shows intra-grain chemical homogeneity and contains, on average, 2.28 wt.% A12O3, 0.88 wt.% Cr2O3 and 0.53 wt.% CaO, similar to primary orthopyroxenes in modern forearc peridotites. The olivine in harzburgites has lower Fo (93−94.5) than that in dunites (Fo94.3−Fo95.9). The Arais olivine is similar in NiO (0.47 wt.% on average) and MnO (0.08 wt.% on average) contents to the mantle olivine in primary peridotites. This olivine is high in Fo content, similar to Mg-rich olivines in ANS ophiolitic harzburgites, because of its residual origin. The chromian spinel, found in harzburgites, shows wide ranges of Cr#s [=Cr/(Cr + Al)], 0.46−0.81 and Mg#s, 0.34−0.67. The chromian spinel in dunites shows an intra-grain chemical homogeneity with high Cr#s (0.82−0.86). The chromian spinels in Arais peridotites are low in TiO2, 0.05 wt.% and YFe [= Fe3+/(Cr + Al + Fe3+)], ~0.06 on average. They are similar in chemistry to spinels in forearc peridotites. Their compositions associated with olivine’s Fo suggest that the harzburgites are refractory residues after high-degree partial melting (mainly ~25−30 % partial melting) and dunites are more depleted, similar to highly refractory peridotites recovered from forearcs. This is in accordance with the partial melting (>20 % melt) obtained by the whole-rock Al2O3 composition. The Arais peridotites have been possibly formed in a sub-arc setting (mantle wedge), where high degrees of partial melting were available during subduction and closing of the Mozambique Ocean, and emplaced in a forearc basin. Their equilibrium temperature based on olivine−spinel thermometry ranges from 650 to 780 °C, and their oxygen fugacity is high (Δlog ƒO2 = 2.3 to 2.8), which is characteristic of mantle-wedge peridotites. The Arais peridotites are affected by secondary processes forming microinclusions inside the dunitic olivine, abundances of carbonates and talc flakes in serpentinites. These microinclusions have been formed by reaction between trapped fluids and host olivine in a closed system. Lizardite and chrysotile, based on Raman analyses, are the main serpentine minerals with lesser antigorite, indicating that serpentines were possibly formed under retrograde metamorphism during exhumation and near the surface at low T (<400 °C).

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References

  • Abd El-Rahman Y, Polat A, Dilek Y, Fryer BJ, El-Sharkawy M, Sakran S (2009) Geochemistry and tectonic evolution of the Neoproterozoic incipient arc–forearc crust in the Fawakhir area, Central Eastern Desert of Egypt. Precambrian Res 175:116–134

    Article  Google Scholar 

  • Abdel-Karim AM, El-Mahallawi MM, Finger F (1996) The ophiolite mélange of Wadi Dunqash and Arayis, Eastern Desert of Egypt: Petrogenesis and tectonic evolution. Acta Mineral Petrogr, Szeged XXXVII:129–141

    Google Scholar 

  • Abdel-Khalek ML, Takla MA, Sehim A, Hamimi Z, El-Manawi AW (1992) Geology and tectonic evolution of Wadi Beitan area, southeastern Desert, Egypt. 1st Int Conf Geol Arab World, Univ Cairo 2:369–394

    Google Scholar 

  • Ahmed AH, Arai S, Attia AK (2001) Petrological characteristics of podiform chromitites and associated peridotites of Pan-African complexes of Egypt. Miner Deposita 36:72–84

    Article  Google Scholar 

  • Allen DE, Seyfried WE Jr (2003) Compositional controls on vent fluids from ultramafic-hosted hydrothermal systems at mid-ocean ridges: An experimental study at 400 °C, 500 bars. Geochim Cosmochim Acta 67:1531–1542

    Article  Google Scholar 

  • Arai S (1975) Contact metamorphosed dunite-harzburgite complex in the Chugoku district, western Japan. Contrib Mineral Petrol 52:1–16

    Article  Google Scholar 

  • Arai S (1980) Dunite-harzburgite-chromitite complexes as refractory residue in the Sangun-Yamaguchi zone, western Japan. J Petrol 21:141–165

    Article  Google Scholar 

  • Arai S (1987) An estimation of the least depleted spinel peridotite on the basis of olivine-spinel mantle array. Neues Jahrb Mineral Monatsh 8:347–354

    Google Scholar 

  • Arai S (1994) Compositional variation of olivine-chromian spinel in Mg rich magmas as a guide to their residual spinel peridotites. J Volcanol Geotherm Res 59:279–294

    Article  Google Scholar 

  • Arai S (1997) Origin of podiform chromitites. J Asian Earth Sci 15:303–310

    Google Scholar 

  • Arai S, Hirai H (1985) Relics of H2O fluid inclusions in mantle-derived olivine. Nature 318:276–277

    Article  Google Scholar 

  • Arai S, Matsukage K (1996) Petrology of the gabbro-troctolite-peridotite complex from Hess Deep, equaotrial Pacific: implications for mantle-melt interaction within the oceanic lithosphere. Proc ODP, Sci Results 147:135–155

    Google Scholar 

  • Arai S, Shimizu Y, Ismail SA, Ahmed AH (2006) Low-T formation of high-Cr spinel with apparently primary chemical characteristics within podiform chromitite from Rayat, northeastern Iraq. Mineral Mag 70:499–508

    Article  Google Scholar 

  • Arai S, Okamura H, Kadoshima K, Tanaka C, Suzuki K, Ishimaru S (2011) Chemical characteristics of chromian spinel in plutonic rocks: Implications for deep magma processes and discrimination of tectonic setting. Island Arc 20:125–137

    Article  Google Scholar 

  • Azer MK, Khalil AES (2005) Petrological and mineralogical studies of Pan-African serpentinites at Bir Al-Edeid area, Central Eastern Desert, Egypt. J Afr Earth Sci 43:525–536

    Article  Google Scholar 

  • Azer MK, Stern RJ (2007) Neoproterozoic (835-720 Ma) serpentinites in the Eastern Desert, Egypt: Fragments of Fore-arc mantle. J Geol 15:457–472

    Article  Google Scholar 

  • Ballhaus C, Berry RF, Green DH (1990) Oxygen fugacity controls in the Earth’s upper mantle. Nature 348:437–440

    Article  Google Scholar 

  • Ballhaus C, Berry RF, Green DH (1991) High pressure experimental calibration of the olivine-orthopyroxene-spinel oxygen geobarometer: implications for the oxidation state of the upper mantle. Contrib Mineral Petrol 107:27–40

    Article  Google Scholar 

  • Bence AE, Albee AL (1968) Empirical correction factors for the electron microanalysis of silicates and oxides. J Geol 76:382–403

    Google Scholar 

  • Bloomer SH, Fisher RL (1987) Petrology and geochemistry of igneous rocks from the Tonga Trench – a non-accreting plate boundary. J Geol 95:469–495

    Article  Google Scholar 

  • Bloomer SH, Hawkins JW (1983) Gabbroic and ultramafic rocks from the Mariana trench: an island arc ophiolite. In: Hayes DE (ed) The tectonics and geologic evolution of Southeast Asian Seas and Islands: Part II. AGU geophysical monograph 23. American Geophysical Union, Washington, pp 294–317

    Chapter  Google Scholar 

  • Bonatti E, Michael P (1989) Mantle peridotites from continental rifts to ocean basins to subduction zones. Earth Planet Sci Lett 91:297–311

    Article  Google Scholar 

  • Cameron WE (1985) Petrology and origin of primitive lavas from Troodos ophiolite, Cyprus. Contrib Mineral Petrol 89:239–255

    Article  Google Scholar 

  • Coleman RG (1971) Petrologic and geophysical nature of serpentinites. Geol Soc Amer 82:897–918

    Article  Google Scholar 

  • Dick HJB, Bullen T (1984) Chromian spinel as a petrogenetic indicator in abyssal and alpine-type peridotites and spatially associated lavas. Contrib Mineral Petrol 86:54–76

    Article  Google Scholar 

  • El-Gaby S, El-Nady O, Khudeir A (1984) Tectonic evolution of the basement complex in the central Eastern Desert of Egypt. Geol Rundsch 73:1019–1036

    Article  Google Scholar 

  • El-Sayed MM, Furnes H, Mohamed FH (1999) Geochemical constraints on the tectonomagmatic evolution of the late Precambrian Fawakhir ophiolite, Central Eastern Desert, Egypt. J Afr Earth Sci 29:515–533

    Article  Google Scholar 

  • El-Sharkawi MA, El-Bayoumi RM (1979) The ophiolites of Wadi Ghadir area, Eastern Desert, Egypt. Ann Geol Surv, Egypt 9:125–135

    Google Scholar 

  • El-Tahlawi MR, Khudeir A, Wagih A, Bishara W, Boghdady GY (1997) An inquiry into the tectonic setting of an ophiolite association from Egypt. 3rd Int Conf Geochem Alex, Egypt 1:395–408

    Google Scholar 

  • Ernst WG (1978) Petrochemical study of lherzolitic rocks from the western Alps. J Petrol 19:341–392

    Article  Google Scholar 

  • Evans BW (2004) The serpentinite multisystem revisited: chrysotile is metastable. Inter Geol Rev 46:479–506

    Article  Google Scholar 

  • Evans BW (2010) Lizardite versus antigorite serpentinite: magnetite, hydrogen, and life (?). Geology 38:879–882

    Article  Google Scholar 

  • Evans BW, Frost BR (1975) Chrome-spinel in progressive metamorphism – a preliminary analysis. Geochim Cosmochim Acta 39:959–972

    Article  Google Scholar 

  • Evans BW, Guggenheim S (1988) Talc, pyrophyllite, and related minerals. In: Bailey SW (ed) Hydrous Phyllosilicates (exclusive of micas). Rev Mineral 19:225–294

  • Evans BW, Trommsdorff V (1974) Stability of enstatite and talc, and CO2-metasomatism of metaperidotite, Val d’Efra, Lepontine Alps. Am J Sci 274:274–296

    Article  Google Scholar 

  • Farahat ES (2008) Chrome-spinels in serpentinites and talc carbonates of the El Edeid-El Sodmein District, Central Eastern Desert, Egypt: their metamorphism and petrogenetic implication. Chemie de Erde Geochemistry 68:193–205

    Article  Google Scholar 

  • Farahat ES (2010) Neoproterozoic arc-back-arc system in the Central Eastern Desert of Egypt: evidence from supra-subduction zone ophiolites. Lithos 120:293–308

    Article  Google Scholar 

  • Farahat ES, El Mahalawi MM, Hoinkes G, Abdel Aal AY (2004) Continental backarc basin origin of some ophiolites from the Eastern Desert of Egypt. Mineral Petrol 82:81–104

    Article  Google Scholar 

  • Farahat ES, Hoinkes G, Mogessie A (2011) Petrogenetic and geotectonic significance of Neoproterozoic suprasubduction mantle as revealed by the Wizer ophiolite complex, Central Eastern Desert, Egypt. Int J Earth Sci (Geol Rundsch) 100:1433–1450

    Article  Google Scholar 

  • Frost R (1975) Contact Metamorphism of Serpentinite, Chloritic Blackwall and Rodingite at Paddy-Go-Easy Pass, Central Cascades, Washington. J Petrol 16:272–313

    Google Scholar 

  • Gass IG (1977) The evolution of the Pan African crystalline basement in NE Africa and Arabia. J Geol Soc London 134:129–138

    Article  Google Scholar 

  • Ghoneim MF, Lebda EM, Nasr BB, Khedr MZ (2002) Geology and tectonic evolution of the area around Wadi Arais, Southern Eastern Desert, Egypt. 6th Conf Geol Arab World, Univ Cairo 1:45–66

    Google Scholar 

  • Hey MH (1954) A new review of the chlorites. Mineral Mag 30:277–292

    Article  Google Scholar 

  • Imai N, Terashima H, Itoh S, Ando A (1995) 1994 compilation values for GSJ reference samples, “Igneous rock series”. Geochem J 29:91–95

    Article  Google Scholar 

  • Ishii T, Robinson PT, Maekawa H, Fiske R (1992) Petrological studies of peridotites from diapiric serpentinite seamounts in the Izu-Ogasawara-Mariana forearc. In: Fryer P, Pearce JA, Stokking LB (eds) Proceedings of the Ocean Drilling Program Scientific Results 125. Ocean Drilling Program, College Station, pp 445–485

    Google Scholar 

  • Ishikawa T, Nagahashi K, Umino S (2002) Boninitic volcanism in the Oman ophiolite: implications for thermal condition during transition from spreading ridge to arc. Geology 30:899–902

    Article  Google Scholar 

  • Ishimaru S, Arai S, Ishida Y, Shirasaka M, Okrugin VM (2007) Melting and multi-stage metasomatism in the mantle wedge beneath a frontal arc inferred from highly depleted peridotite xenoliths from the Avacha Volcano, Southern Kamchatka. J Petrol 48:395–433

    Article  Google Scholar 

  • Ishiwatari A (1985) Igneous petrogenesis of the Yakuno ophiolite (Japan) in the context of the diversity of ophiolites. Contrib Mineral Petrol 89:155–167

    Article  Google Scholar 

  • Iyer K, Austrheim H, John T, Jamtveit B (2008) Serpentinization of the oceanic lithosphere and some geochemical consequences: constraints from the Leka Ophiolite Complex, Norway. Chem Geol 249:66–90

    Article  Google Scholar 

  • Jaques AL, Green DH (1980) Anhydrous melting of peridotite at 0–15 kb pressure and the genesis of tholeiitic basalts. Contrib Mineral Petrol 73:287–310

    Article  Google Scholar 

  • Kelemen PB, Shimizu N, Salters VJM (1995) Extraction of mid-ocean-ridge basalt from the upwelling mantle by focused flow of melt in dunite channels. Nature 375:747–753

    Article  Google Scholar 

  • Khalil AES, Azer MK (2007) Supra-subduction affinity in the Neoproterozoic serpentinites in the Eastern Desert, Egypt: evidence from mineral composition. J Afr Earth Sci 49:136–152

    Article  Google Scholar 

  • Khedr MZ (2004) Petrological and geochemical studies on the area around Wadi Arais, south Eastern Desert, Egypt. M.Sc. Dissertation. University of Tanta, Egypt

    Google Scholar 

  • Khedr MZ, Arai S (2010) Hydrous peridotites with Ti-rich chromian spinel as a low-temperature forearc mantle facies: evidence from the Happo-O’ne metaperidotites (Japan). Contrib Mineral Petrol 159:137–157

    Article  Google Scholar 

  • Khedr MZ, Arai S (2011) Petrology and geochemistry of chromian spinel-bearing serpentinites in the Hida Marginal Belt (Ise area, Japan): characteristics of their protoliths. J Mineral Petrol Sci 106(5):255–260

    Article  Google Scholar 

  • Khedr MZ, Arai S (2012) Petrology and geochemistry of prograde deserpentinized peridotites from Happo-O’ne, Japan: evidence of element mobility during deserpentinization. J Asian Earth Sci 43:150–163

    Article  Google Scholar 

  • Khedr MZ, Arai S, Tamura A, Morishita T (2010) Clinopyroxenes in high-P metaperidotites from Happo-O’ne, central Japan: implications for wedge-transversal chemical change of slab-derived fluids. Lithos 119:439–456

    Article  Google Scholar 

  • Khudeir AA (1995) Chromian spinel-silicate chemistry in peridotite and orthopyroxenite relicts from ophiolitic serpentinites, Eastern Desert, Egypt. Bull Fac Sci Assuit Univ Egypt 24:221–261

    Google Scholar 

  • Kostopoulos D (1991) Melting of the shallow upper mantle. J Petrol 32:671–699

    Article  Google Scholar 

  • Kröner A (1985) Ophiolites and the evolution of tectonic boundaries in the late Proterozoic Arabian-Nubian shield of northeast Africa and Arabia. Precambrian Res 27:277–300

    Article  Google Scholar 

  • Loferski P, Lipin BR (1983) Exsolution in metamorphosed chromite from the Red Lodge district, Montana. Amer Mineral 68:777–789

    Google Scholar 

  • Loney RA, Himmelberg GR, Coleman RG (1971) Structure and petrology of the alpine-type peridotite at Burro Mountain, California, USA. J Petrol 12:245–309

    Article  Google Scholar 

  • McDonough WF, Sun SS (1995) The composition of the Earth. Chem Geol 120:223–253

    Article  Google Scholar 

  • Miura M, Arai S, Mizukami T (2011) Raman spectroscopy of hydrous inclusions in olivine and orthopyroxene in ophiolitic harzburgite: implications for elementary processes in serpentinization. J Mineral Petrol Sci 106:91–96

    Article  Google Scholar 

  • Moore DE, Rymer MJ (2007) Talc-bearing serpentinite and the cree** section of the San Andreas fault. Nature 448:595–597

    Article  Google Scholar 

  • Müntener O, Hermann J, Trommsdorff V (2000) Cooling history and exhumation of lower-crustal granulite and upper mantle (Malenco, eastern central Alps). J Petrol 41:175–200

    Article  Google Scholar 

  • Murata K, Maekawa H, Yokose H, Yamamoto K, Fujioka K, Ishii T, Chiba H, Wada Y (2009) Significance of serpentinization of wedge mantle peridotites beneath Mariana forearc, western Pacific. Geosphere 5:90–104

    Article  Google Scholar 

  • Niu Y (1997) Mantle melting and melt extraction processes beneath ocean ridges: evidence from abyssal peridotites. J Petrol 38:1047–1074

    Article  Google Scholar 

  • Nozaka T (2003) Compositional heterogeneity of olivine in thermally metamorphosed serpentinite from southwest Japan. Amer Mineral 88:1377–1384

    Google Scholar 

  • Nozaka T (2011) Constraints on anthophyllite formation in thermally metamorphosed peridotites from southwestern Japan. J Metam Geol 29:385–398

    Article  Google Scholar 

  • O’Hanley DS (1996) Serpentinites: records of tectonic and petrologic history. Oxford University Press, Oxford, p 277

    Google Scholar 

  • Ohara Y, Ishii T (1998) Peridotites from southern Mariana forearc: heterogeneous fluids supply in mantle wedge. Isl Arc 7:541–558

    Article  Google Scholar 

  • Okamura H, Arai S, Kim Y-U (2006) Petrology of forearc peridotite from the Hahajima Seamount, the Izu-Bonin arc, with special reference to chemical characteristics of chromian spinel. Mineral Mag 70:15–26

    Article  Google Scholar 

  • Parkinson IJ, Pearce JA (1998) Peridotites from the Izu-Bonin-Mariana forearc (ODP Leg 125): evidence for mantle melting and melt-mantle interaction in a supra-subduction zone setting. J Petrol 39:1577–1618

    Article  Google Scholar 

  • Pearce JA, Barker PF, Edwards SJ, Parkinson IJ, Leat PT (2000) Geochemistry and tectonic significance of peridotites from the South Sandwich arc-basin system, south Atlantic. Contrib Mineral Petrol 139:36–53

    Article  Google Scholar 

  • Pinsext RH, Hirst DM (1977) The metamorphism of the Blue River ultramafic body, Cassiar, British Columbia, Canada. J Petrol 18:567–594

    Article  Google Scholar 

  • Ries AC, Shackleton RM, Graham RH, Fitches WR (1983) Pan-African structures, ophiolites and mélanges in the Eastern Desert of Egypt: a traverse at 26° N. J Geol Soc 140:75–95

    Article  Google Scholar 

  • Sack RO, Ghiorso MS (1991) Chromian spinels as petrogenetic indicators: Thermodynamics and petrological applications. Amer Mineral 76:827–847

    Google Scholar 

  • Shackleton RM, Ries AC, Graham RH, Fitches WR (1980) Late Precambrian ophiolitic mélange in the Eastern Desert of Egypt. Nature 285:472–474

    Article  Google Scholar 

  • Sobolev AV, Danyushevsky LV (1994) Petrology and geochemistry of boninites form the north termination of the Tonga trench: constraints on the generation conditions of primary high-Ca boninite magmas. J Petrol 35:1183–1211

    Article  Google Scholar 

  • Springer R (1974) Contact metamorphosed ultramafic rocks in the Western Sierra Nevada Foothills, California. J Petrol 15:160–195

    Article  Google Scholar 

  • Stern RJ (1994) Arc assembly and continental collision in the neoproterozoic east African orogen: implications for the consolidation of Gondwana. Ann Rev Earth Planet Sci Lett 152:75–91

    Google Scholar 

  • Stern RJ, Gwinn CJ (1990) Origin of late precambrian intrusive carbonates, Eastern Desert of Egypt and Sudan: C, O and Sr isotopic evidences. Precam Res 46:259–272

    Article  Google Scholar 

  • Stern RJ, Johnson PR, Kröner A, Yibas B (2004) Neoproterozoic ophiolites of the Arabian–Nubian Shield. In: Kusky TM (ed) Precambrian ophiolites and related rocks. Developments in Precambrian geology, vol 13. Elsevier, Amsterdam, pp 95–128

    Chapter  Google Scholar 

  • Takahashi E, Uto K, Schilling JG (1987) Primary magma compositions and Mg/Fe ratios of their mantle residues along Mid-Atlantic Ridge 29 N to 73 N. Tech Rep Inst Study Earth’s Inter Okayama Univ Ser A 9:1–14

    Google Scholar 

  • Takazawa E, Frey FA, Shimizu N, Obata M (2000) Whole rock compositional variations in an upper mantle peridotite (Horoman, Hokkaido, Japan): are they consistent with a partial melting process? Geochim Cosmochim Acta 64:695–716

    Article  Google Scholar 

  • Takazawa E, Okayasu T, Satoh K (2003) Geochemistry and origin of the basal lherzolites from the northern Oman ophiolite (northern Fizh block). Geochem Geophys Geosyst 4(2):1021. doi:10.1029/2001GC000232

    Article  Google Scholar 

  • Trommsdorff V, López Sànchez-Vizcaíno V, Gómez-Pugnaire MT, Müntener O (1998) High pressure breakdown of antigorite to spinifex-textured olivine and orthopyroxene, SE Spain. Contrib Mineral Petrol 132:139–148

    Article  Google Scholar 

  • Umino S, Kushiro I (1989) Experimental studies on boninite petrogenesis. In: Crowford AJ (ed) Boninites and Related Rocks. Unwin Hyman, London, pp 89–111

    Google Scholar 

  • van der Laan SR, Arculus RJ, Pearce JA, Murton JB (1992) Petrography, mineral chemistry, and phase relations of the basement boninite series of Site 786, Izu–Bonin forearc. In: Fryer P, Pearce JA, Stokking LB (eds) Proceedings of the ocean drilling program, scientific results, vol. 125. Ocean Drilling Program, College Station, pp 171–202

    Google Scholar 

  • Wicks FJ, Whittaker EJW (1977) Serpentine textures and serpentinization. Can Mineral 15:446–488

    Google Scholar 

  • Will TM, Powell R, Holland TJB (1990) A calculated petrogenetic grid for ultramafic rocks in the system CaO-FeO-MgO-Al2O3-SiO2-CO2-H2O at low pressures. Contrib Mineral Petrol 105:347–358

    Article  Google Scholar 

  • Yoshikawa M, Nakamura E (2000) Geochemical evolution of the Horoman peridotite complex: Implications for melt extraction, metasomatism and compositional layering in the mantle. J Geophys Res 105:2879–2901

    Article  Google Scholar 

  • Zimmer M, Kröner A, Jochum KP, Reischmann T, Todt W (1995) The Gabal Gerf complex: a Precambrian N-MORB ophiolite in the Nubian Shield, NE Africa. Chem Geol 123:29–51

    Article  Google Scholar 

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Acknowledgments

The authors are indebted to Mr. M. Miura and Dr. T. Mizukami for their help during laser Raman analysis. We are grateful to reviewers: Prof. Hassan Helmy and Dr. Marie Python for their beneficial comments. We thank the editor and Dr. Tamer Abu Alam, guest editor of Gondwana Collision especial issue, for the editorial handling of this manuscript.

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  1. Department of Earth Sciences, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma, Kanazawa, Ishikawa, 920-1192, Japan

    Mohamed Zaki Khedr & Shoji Arai

  2. Department of Geology, Faculty of Science, Kafrelsheikh University, Kafrelsheikh, Egypt

    Mohamed Zaki Khedr

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Khedr, M.Z., Arai, S. Origin of Neoproterozoic ophiolitic peridotites in south Eastern Desert, Egypt, constrained from primary mantle mineral chemistry. Miner Petrol 107, 807–828 (2013). https://doi.org/10.1007/s00710-012-0213-y

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