Uranium Mineralisation in Sikar District, Rajasthan

Authors

  • G. R. Narayan Das
     Atomic Minerals Division, Department of Atomic Energy, New Delhi-110022
  • D. K. Sharma
     Atomic Minerals Division, Department of Atomic Energy, New Delhi-110022
  • Govind Singh
     Atomic Minerals Division, Department of Atomic Energy, New Delhi-110022
  • Rajendra Singh
     Atomic Minerals Division, Department of Atomic Energy, New Delhi-110022

Abstract

Uranium mineralisation of segregated type consisting mostly of uraninite and less commonly of brannerite has been noted in the pink quartzo-feldspathic or aplitic emplacements along shear zones in Rohil-Ghateshwar-Khandela-Diara and Saladipura area in Sikar district of Rajasthan. Ilmenite, molybdenite, pyrrhotite, chalcopyrite and pyrite are noted along with uraninite.

Mineralisation is controlled by structure and generally occurs along linear shears that are parallel to the main tectonic lineament. In Ghateshwar area, the mineralised quartzo-feldspathic emplacements have undergone refolding along with the rest of the formations. Uranium mineralisation is near to the main tectonic lineament that passes through the axis of the Ajabgarh synclinorium. Integrated radiometric and hydrogeochemical surveys have indicated continuity of the uranium bearing quartzo-feldspatbic emplacements along a 16 km belt.

The Salwari fluorite occurrence 10 km NE of Khandela is a post feldspathic emplacement and probably formed during the final phases of mineralisation.

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Issue

Volume 21, Issue 9, September 1980

Section

Research Papers

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Published

1980-09-01

How to Cite

Narayan Das, G. R., Sharma, D. K., Singh, G., & Singh, R. (1980). Uranium Mineralisation in Sikar District, Rajasthan. Journal of Geological Society of India, 21(9), 432–439. Retrieved from http://www.geosocindia.com/index.php/jgsi/article/view/64818

References

ASWATHNARAYANA, U., (1971) Th/U and U/K ratios as possible aids in prospecting for uranium deposits in Peninsular India Econ Geol. v 66, pp 1078-1079

BHATTACHARYA, T. K. and SURYANARAYANA, K., (1975) Unpublished Report No. N-25/75 on petrological studies of Ghateshwar uraniferous samples

DAR, K. K., (1964) Some Geological Data on Atomic Energy Mmerals In India. Jour. Geol Soc. India. v 5, pp 112-120

NARAYAN DAS, G. R., (1975) Unpublished Note on the geology and radioactivity between Ghateshwar-Khandela-Saladipura-Kotn section, A M D

RAJENDRA SINGH, (1975) Unpublished Brief Annual Report, Part I, Northern Circle Group (B), AMD

RAY, S. K., (1974) Structural History of Saladipura pyrite-pyrrhotite deposit and associated rocks, Khetn Copper Belt, Rajasthan. Jour Geol Soc India. v 15, pp 227-238

UDAS, G. R., NARAYAN DAS, G. R. and SHARMA, C. V., (1974) Carbonatites of India in relation to structural setting Seminar on tectonics and metallogeny of southeast Asia and Far east, Calcutta.

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