The Chandi limestone of Raipur Group, Chhattisgarh Supergroup, is used as a raw material for cement industries and as a flux in Bhilai Steel Plant Bhilai (M.P.). The present prospecting techniques consist of routine geological mapping, exptoratory drilling and chemical analysis. Looking to the widespread occurrence and need for fast exploration, it was felt that some parameters should be estimated to demarcate the economic zones for detailed exploration. Based upon lithological and petrographic studies, the Chandi limestone of Raipur Group, around Nandini, Durg District (M.P.) can be divided into three major lithotacies; purple strorna tolitic limestone (lithofacies A, oldest); purple gray dolomitized Umestone (Jithofacies B, intermediate) and purple gray calcareous shale (lithofacies C, youngest). Based upon thin section petrography, the following significant microfacies has been identified within these broad lithofacies; stromatolitic micrite, massive micrite, bedded micrite dolomitized micrtte/microdolospartte, pelmicrite and intrasparttelshale pebble conglomerate. From the results of XRD and chemical analysis, of these lithofacies, it is concluded that purple stromatolitic lime stones (Lithofacies A) are the zones of high grade limestone and dolomitic limestones of lithofacies B and C are industrial dolomites.
Cite this article:
Guhey (1996). Indicators of potential zones of high grade limestone and dolomite in Chandi limestone of Raipur Group, Nandini area, Madhya Pradesh. Journal of Ravishankar University (Part-B: Science), 9(1), pp. 55-62.