Mn-Rich Ilmenites in Dyke Rocks-Potential Diamondiferous Occurrence in Malanjkhand Porphyry Copper Mine, Madhya Pradesh

Authors

  • C. E. Nehru
     American Museum of Natural History, New York, NY 10024
  • D. B. Sikka
     Cabinet Conseil en Geologie Miniere Sikka Enr., 2108, 3463 Rue Ste Famille, Montréal, H2X 2K7

DOI:

https://doi.org/10.1007/s12594-017-0575-1

Abstract

Mn-rich ilmenites (up to 7% MnO) have been identified in dykes cutting the Malanjkhand porphyry copper mining area in Madhya Pradesh. The dykes are hydrothermally altered and are of tholeiitic affinities. Lamprophyres have been reported from nearby areas. The presence of Mn-rich Ilmenites in the Malanjkhand copper mine dykes and the occurrence of lamprophyres and the pervasive potassium metasomatism in the area strongly suggests a possibility of finding diamondiferous rocks in the area. Such high-Mn bearing ilmenites are associated with diamondiferous deposits in other parts of the world, e.g. Juina kimberlites, Brazil. Mn-bearing ilmenite is considered as an indicator mineral for kimberlite/diamond occurrences. The presence of kimberlite pipes in Raipur district and the association of Mn-rich ilmenite with kimberlites is a fortuitous coincidence for venture-some mining companies. A probable explanation for the origin of manganese layers in the context of 'rift' tectonic environment is offered. Also a possible link between the dykes, quartz veins in the Malanjkhand granitic rocks and the copper mineralization is proposed.

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Issue

Volume 89, Issue 2, February 2017 Pages (113-228)

Section

Research Articles

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Published

2017-02-01

How to Cite

Nehru, C. E., & Sikka, D. B. (2017). Mn-Rich Ilmenites in Dyke Rocks-Potential Diamondiferous Occurrence in Malanjkhand Porphyry Copper Mine, Madhya Pradesh. Journal of Geological Society of India, 89(2), 131–132. https://doi.org/10.1007/s12594-017-0575-1
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References

Bhargava, M. and Pal, A.B. (2000) Cu-Mo-Au metallogeny associated with Proterozoic tectono-magmatism in Malanjkhand porphyry copper district, Madhya Pradesh. Jour. Geol. Soc. India, v.56, pp.395-413.

Kaminsky, F.V. and Belousova, E.A. (2009). Manganoan ilmenite as kimberlite/ diamond indicator mineral. Russian Geol. Geophys., v.50(12), pp.1212-1220.

Krishnaswamy, S. and Sinha, R.K. (1988) India's Mineral resources – Third Edition. Oxford and IBH Publ. Co. Pvt. Ltd. New Delhi. Geologydata.info web site.

Martin, H. (1993) The mechanisms of petrogenesis of the Archaean continental crust Comparison with modern processes. Lithos, v.30, pp.373-388.

Mitchell, R.H. (1991). Kimberlites and Lamproites: Primary sources of Diamond Ore deposit models v.II: pp.13-28.

Nadeau, O. Williams-Jones A.E. and Stix, J. (2010) Sulphide magma as a source of metals in arc-related magmatic hydrothermal ore fluids. Nature Geosci., v.3, pp.501-505.

Nadeau, O. Williams-Jones, A.E. and Stix, J. (2013a) Magmatic-hydrothermal evolution and devolatilization beneath Merapi volcano, Indonesia. Jour. Volcanol. Geothermal Res., v.261, pp.50-68.

Nadeau, O., Williams-Jones, A.E., and Stix, J. (2013b) Behavior of Cu, Zn and Pb during magmatic-hydrothermal activity at Merapi volcano, Indonesia. Chemical Geol., v.342, pp.167-179.

Nadeau, O., Stix, J., and Williams-Jones, A.E. (2015) Links between arc volcanoes and porphyry-epithermal ore deposits. Geology doi:10.1130/ G37262.1

Nehru, C.E., and Sikka, D.B. (2014) Dykes and Dyke Swarms from the Dongargarh-Kotri Belt: With Special Reference to Malanjkhand Mafic Porphyry Copper Mine. Recent advances in Geology of Dongargarh-Kotri Belt, Central India and its mineral potential. Editors: Roy, M.K. and Pophare, A.M. Gondwana Geol. Mag., Spec. Volume No.16. pp.83-108.

Roy, S. (1962) Study of metamorphic manganese ores of Bharweli Mine area, Madhya Pradesh, India and their genesis. Econ. Geol., v.57, pp.195-208.

Schardt, C. (2016) Hydrothermal fluid migration and brine pool formation in the Red Sea: The Atlantis II Deep Mineralium Deposita, v.51, pp.89-111

Scott Smith, B.H. (1989) Lamproites and Kimberlites in India, Nueus Jharbuch fur Mineralogie Abhandlungen v.161, pp.193-225. Reprinted (2007), Jour. Geol. Soc. India, v.69, pp.445-465.

Siddiquie, F.N., Burhamuddin, Kh, Mohd. Shaif and Juned Alam (2015) Manganese Ore Minerals Assemblages and Mineral Paragenesis with the help of Ore Petrography and XRD studies of Balaghat district, (M.P.) Global Journal of Science Frontier Research: v.15, Issue 3. Version 1.0, pp. 21-33.

Sikka D.B. and Nehru, C.E. (2014) Regional Geology of Malanjkhand Pluton, Kotri Dongargarh Belt, Madhya Pradesh, India. Gondwana Geol. Soc. Nagpur, Special Volume, no.16, pp.49-81.

Tripathi, C. (1979) The Malanjkhand-Taregaon porphyry copper deposit. Geol. Surv. India Misc. Publ. No.34, pt.II, pp.161-168.