Journal of Geological Society of India (Online archive from Vol 1 to Vol 78)

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Discrete Selenide Phases from the Uraniferous Mahadek Sandstones of Domiasiat and Wahkyn South, West Khasi Hills District, Meghalaya


Affiliations
1 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy 'Begumpet, Hyderabad - 500 016, India
2 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Shillong, Meghalaya, India
3 Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Tatanagar, Jamshedpur, India
 

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Occurrences of discrete selenide phases in the geological environment are rather rare and are confined to a few sulphide deposits and sandstone-type uranium deposits such as those of the Colorado plateau, USA. The occurrence of discrete selenide phases viz., clausthalite (PbSe), ferroselite (FeSe2) and Co-penroseite (CoNiCuSe2) are reported for the first time from the Uraniferous Mahadek sandstones of Domiasiat and Wahkyn South, West Khasi Hills District, Meghalaya. The selenide phases are associated with pyritiferous organic matter, pitchblende and other ore minerals such as marcasite and sphalerite.
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  • Discrete Selenide Phases from the Uraniferous Mahadek Sandstones of Domiasiat and Wahkyn South, West Khasi Hills District, Meghalaya

Abstract Views: 202  |  PDF Views: 171

Authors

E. V. S. S. K. Babu
Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy 'Begumpet, Hyderabad - 500 016, India
S. Nayak
Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy 'Begumpet, Hyderabad - 500 016, India
A. K. Rai
Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Shillong, Meghalaya, India
P. Krishnamurthy
Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy, Tatanagar, Jamshedpur, India
S. N. Kak
Atomic Minerals Directorate for Exploration and Research, Department of Atomic Energy 'Begumpet, Hyderabad - 500 016, India

Abstract


Occurrences of discrete selenide phases in the geological environment are rather rare and are confined to a few sulphide deposits and sandstone-type uranium deposits such as those of the Colorado plateau, USA. The occurrence of discrete selenide phases viz., clausthalite (PbSe), ferroselite (FeSe2) and Co-penroseite (CoNiCuSe2) are reported for the first time from the Uraniferous Mahadek sandstones of Domiasiat and Wahkyn South, West Khasi Hills District, Meghalaya. The selenide phases are associated with pyritiferous organic matter, pitchblende and other ore minerals such as marcasite and sphalerite.