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

Arindam Gupta ¹

Affiliations
1 A.M.S.E. Wing, Geol. Surv. India, Jayanagar, Bangalore 560 041, IN

Abstract

A belt of volcano-sedimentary formations extending from the south-western margin of the area towards ENE along the Son valley has been traced on the LANDSAT imageries. These formations, which are considered to be the homotaxial equivalents of the 'Bijawar Series' occurring south of the Bundelkhand granite massif, rest on granite gneiss in the central and eastern parts of the area and are overlain towards north and south by the members of the Vindhyan and Gondwana Supergroups respectively. The significant litho-stratigraphic, structural and metamorphic features of the belt of volcano-sedimentary formations suggest that it may be classified as a 'Greenstone belt'.

Probable occurrence of the volcano-sedimentary formations and sub-crustal basic rocks beneath the Vindhyan and Gondwana Formations have been inferred in certain sections based on the interpretation of Bouguer gravity and airborne magnetic anomaly data.

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Vishnu D. Choubey ¹, Arindam Gupta ²

Affiliations
1 Department of Applied Geology, Indian School of Mines, Dhanbad 826004, IN
2 Geological Survey of India, Calcutta, IN

Abstract

An elongated linear belt of distinct meta-volcanic and sedimentary assemblage of low-grade metamorphism and tight folding in the Son Valley are described. The contact between the two tectonic units is marked by intense overthrusting and shear deformation. Its persistent regional trend suggests some fundamental fracture pattern across the Precambrian shield. The metavolcanic and sedimentary assemblages are characteristic of Precambrian greenstone belt in Son Valley.

Keywords

Areal Geology, Son Valley, Precambrian, Greenstone Belt, Madhya Pradesh, Uttar Pradesh.

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Arindam Gupta ¹

Affiliations
1 B-8, Greenwood Hsg. Society, Parnashree, Kolkata - 700 060, IN

Abstract

No Abstract.

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