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

S. A. Chore ¹, M. Mohanty ¹

Affiliations
1 Geological Survey of India, 1-Bhutan Unit, Samtse; 2-Operation Orissa, Nayapalli, Bhubaneswar-751012, IN

Abstract

At least three formations in Punagarh Group and two in Sindreth Group are identifiable on the basis of varied lithoassemblages. The geochemical parametres of the mafic (mainly pillowed) and felsic volcanics suggest that their effusion is linked to the deep seated fractures responsible for the formation of intracratonic grabens. The association of bimodal volcanics and coarse clastics in linear grabens suggest the development of retroarc basins as a consequence of subduction of South Delhi Oceanic-transitional crust under the western Marwar continental crust. The Trans-Aravalli region in Rajasthan contains Neoproterozoic sequences of Punagarh and Sindreth groups occurring in isolated linear basins.

Keywords

Stratigraphy, Tectonics, Aravalli, Neoproterozoic, Rajasthan.

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Abhinaba Roy ¹, M. Hanuma Prasad ¹, S. A. Chore ¹, L. L. Viswakarma ²

Affiliations
1 Geological Survey of India, Seminary Hills, Nagpur - 400 006, IN
2 Geological Survey of India, 0p.MP-I, Bhopal - 462016, IN

Abstract

No Abstract.

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