Palaeo-Coastal Morphology of the Neoproterozoic Badami Basin - some Field Evidences from Khanapur, Bagalkot District, Karnataka

The Neoproterozoic Badami Group of the Kaladgi-Badami basin consists of an undisturbed sequence of sandstone, shale and limestone exposed in the northern districts of Karnataka and adjoining parts of Maharashtra (Viswanathiah, 1977; Jayaprakash et al. 1987). The sequence unconformably overlies Archaean granitoids, schists and the Mesoproterozoic Bagalkot Group of sediments. The environment of deposition of the Badami Group has been interpreted as shallow marine (Sathyanarayan, 1994). This note presents some field evidences around Khanapur village, Bagalkot district revealing the nature of palaeo-coas tal morphology during the deposition of Cave Temple arenite (CTa), the main sandstone member of the Badami Group.