Platinum Group of Elements in Semra Komatiites, Palamau District, Jharkhand: A Preliminary Observation

Authors

  • Jugnu Prasad
     Post Graduate Department of Geology, Ranchi University, Ranchi - 834 008
  • D. K. Bhattacharya
     Post Graduate Department of Geology, Ranchi University, Ranchi - 834 008

Keywords:

PGEs, Semra Komatiites, Chotanagpur Gneissic Complex.

Abstract

Semra komatiites that occur at the NW fringe of the Chotanagpur Gneissic Complex represent high PGE content, associated with the pyrrhotite, pentlandite, chalcopyrite and pyrite. They display wide variation in the IPGE concentration and characterized by Pd/Pt values (>1) similar to that of primitive mantle. The negative Ir anomaly is attributed to temperature dependant solubility limit, therefore, not a reflection of bulk mantle IPGE content. Wide variation in the Au content indicates its highly mobile nature. Metasomatism and serpentinisation possibly have played significant role in the Au enrichment.

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Issue

Volume 82, Issue 6, December 2013

Section

Research Articles

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Published

2013-12-01

How to Cite

Prasad, J., & Bhattacharya, D. K. (2013). Platinum Group of Elements in Semra Komatiites, Palamau District, Jharkhand: A Preliminary Observation. Journal of Geological Society of India, 82(6), 607–612. Retrieved from https://www.geosocindia.com/index.php/jgsi/article/view/57109

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