Skip to main content
SpringerLink
Log in

First Report on Platinum Occurrence in Ultramafic-Mafic Complex, East-Central Karbi Hills of Assam, North East India

  • Research Articles
  • Published:
Journal of the Geological Society of India

Abstract

The results of SEM-EDS and XRD, indicating the presence of PGE in stratified vanadium bearing magnetite-ilmenite ore, hosted by layered ultramafic-mafic complex in a part of east-central Karbi Anglong district, Assam (NE India) are reported here. The initial XRD data indicate presence of PGE minerals like braggite, laurite and cooperite; the SEM-EDS indicate variable wt. % of PGE and rare metals like 11.58% Re and gold. The highest weight % value is 19.55 Pt; 13.83 Ir; 7.36 Os; 0.95 Pd and 0.45 Ru. Plume model has been cited as the key factor causing high partial melting of the upper mantle in back arc rift environment, producing platinum rich but sulphur poor magma, subsequently acquiring sulphur from pelites of Shillong Group, thereby, gaining PGE.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  • Auge, T., Cocherie, A, Genna, A., Armstrong, R., Guerrot, C., Mukherjee, M.M. and Patra, R.N. (2003) Age of Baula PGE mineralization (Orissa, India) and its implications concerning the Singhbhum Archean Nucleus, Precambrian Res., v.121, pp.85–101.

    Article  Google Scholar 

  • Bidyananda, M. and Deomurari, M.P. (2007) Geochronological constraints on the evolution of Megahalaya massif, northeastern India: an ion microprobe study. Curr. Sci., v.93, pp.1620–1623.

    Google Scholar 

  • Cawthorn, R.G., Barnes, S.J., Ballhaus, C. and Malitch, K.N. (2005) Platinum group element, chromium, and vanadium deposits in mafic and ultramafic rocks. Econ.Geol. 100th Anniv. Vol., pp.215–249.

  • Devaraju, T.C., Alapieti, T.T. and Kaukonen, R.J. (2005) SEM-EDS study of the platinum-group minerals in the PGE mineralized Hanumalpura segment of layered ultramafic complex of Channagiri, Devangere district, Karnataka. Jour. Geol. Soc. India, v.65, pp.745–752.

    Google Scholar 

  • Farooqui, S.A. and Singh, A.K. (2006) Platinum mineralization in Ikauna Area, Lalitpur District, Uttar Pradesh. Jour. Geol. Soc. India, v.68, pp582–584.

    Google Scholar 

  • Hazra, S., Ray, J., Manikymba, C., Saha, A., Sawant, S.S. (2015) Geochemistry of PGE in mafic rocks of East Khasi Hills, Shillong Plateau, NE India. Jour. Earth Sci., v.124(2), pp.459–475.

    Google Scholar 

  • Ihlenfeld, C. and Keays, R. (2011) Crustal contamination and PGE mineralization in the Platreef, Bushveld Complex, South Africa: evidence for multiple contamination events and transport of magmatic sulfides. Mineral. Deposita, v.46, pp.813–832.

    Article  Google Scholar 

  • Majumdar, D. and Dutta, P. (2016) Geodynamic evolution of a Pan-African granitoid of extended Dizo Valley in Karbi Hills, NE India: Evidence from Geochemistry and Isotope Geology. Jour. Asian Earth Sci., v.117, pp.256–268.

    Article  Google Scholar 

  • Mazumder, S.K. (1986) The Precambrian framework of part of the Khasi Hills, Meghalaya. Rec. Geol. Surv. India, v.117(2), pp.1–59.

    Google Scholar 

  • Mondal, R., and Baidya, T. (2015) Titaniferous magnetite deposits associated with Archean Greenstone belt in the east Indian shield. Earth Sciences, v.4 (4-1), pp.15–30.

    Article  Google Scholar 

  • Singh, S., Balaram, V., Satyanarayanan, M.V., Anjaiah, K. and Kharya, A. (2010) Platinum group elements in basic and ultrabasic rocks around Madawara, Bundelkhand Massif, Central India. Curr. Sci., v.99, pp.375–383.

    Google Scholar 

Download references

Acknowledgements

The first author is thankful to the Dibrugarh University administration for providing necessary financial support under M.Sc. project field work grant. The necessary laboratory supports were provided by the Central Sophisticated Instrumentation Centre (CSIC) of Dibrugarh University. Special thanks are due to Dr. A.T.T. Mostako, the Centre In-Charge and Dr. Pankaj Dutta of the Department of Chemistry for generating Scanning Electron Microscope (SEMEDS) data and obtaining the powder X-ray diffractograms respectively. The guidance of unnamed local villagers during the field visit deserves special appreciation. The anonymous reviewers helped to modify the original submission through their constructive suggestions are gratefully acknowledged.

Author information

Authors and Affiliations

  1. Department of Applied Geology, Dibrugarh University, Dibrugarh, 786 004, Assam, India

    Dilip Majumdar & Abhijit Gogoi

Authors
  1. Dilip Majumdar
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Abhijit Gogoi
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Dilip Majumdar.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Majumdar, D., Gogoi, A. First Report on Platinum Occurrence in Ultramafic-Mafic Complex, East-Central Karbi Hills of Assam, North East India. J Geol Soc India 94, 245–248 (2019). https://doi.org/10.1007/s12594-019-1303-9

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s12594-019-1303-9

Search

Navigation