Flow Mapping and Correlations of the Deccan Basalt Lava Flows, North-East Maharashtra, India

Flow mapping has been carried out with the help of five field traverses of Rajura-Indla area, Eastern part of Amravati district, Maharashtra, India. Rajura-Indla area comprises Chirodi hill ranges representing moderate hilly terrain and entirely covered by Deccan basalt lava flows. Flow mapping has been carried out to understand the field characteristics of individual flows, their thickness and possible correlations. Various flows are identified on the basis of difference in grain size, mineral content, presence of phenocrysts, physiographic breaks and presence of red bole horizons. Section maps for each traverses has been prepared on the basis of field characteristics. There are in all three lava flows exposed as mafic plagioclase microphyric basalt, plagioclase phyric basalt and plagioclase mafic microphyric basalt with different field characteristics. Flow correlation has been carried out by considering the logs of individual traverses. On the basis of present study coupled with existing palaeomagnetic data, exposed lava pile has been divided into two different formations with preparation of comprehensive geological map of the area.