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Dyke Swarm at Vaijapur-Gangapur, Aurangabad District, Maharashtra, India - Field Characters and Deformations

Journal: International Journal of Science and Research (IJSR) (Vol.9, No. 7)

Publication Date:

Authors : ; ; ; ;

Page : 406-414

Keywords : Dyke swarm; deformation; Deccan basalt; Vaijapur-Gangapur; Aurangabad;

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In addition to the three major dyke swarms from Deccan Volcanic Province, the Dyke swarm is reported from Central Deccan Volcanic Province from Aurangabad region recently. Small size dyke swarm is also reported from South East Deccan Volcanic Province, Nanded. In this paper we study the Dyke Swarm from NW of Aurangabad region in Maharashtra. These basaltic dykes have intruded the host basaltic rocks. The length of the dykes varies from 1.8 to 6.5 km and in width dykes vary from 1.5 to 18.0 m. The dominant orientation of the dykes is NE-SW which matches with the trend of Narmada-Tapi Dyke Swarm. The study describes the evidence of ‘deformations (off-set) ’. The deformations in the dykes are ‘non-tectonic’ (the off-set in dykes is attributed to the mechanical contrast of the associated rock types) as well as ‘tectonic’ (displacement along fractures). The deformations observed at Aurangabad and present study area, are primary (non-tectonic) and secondary (tectonic) deformation. This zone, a stretch of ~ 65 km is designated as Central Deccan Volcanic Province Deformation Zone (CDVPDZ).

Last modified: 2021-06-28 17:09:23