Published Paper Details:

The Deccan traps offer excellent material for stratigraphic studies as the traps outcrop as an uninterrupted sequence of flows through of the terrain with occasional presence of few intertrappean beds. Krishnan (1960) has broadly classified the Deccan trap into lower, middle and upper stratigraphic grouped based on the distribution and relative proportion of intertrappean sedimentary beds an ash layers with relation to their height. The lower traps represent outlier part of the province. The middle trap comprises the central Deccan a Malwa plateau where as the western ghat near Maharashtra and Gujarat refers to upper traps. In the Asirgarh area the detailed stratigraphic aspects of the various lava flows exposed are study have been carried out to understand the flow stratigraphy of the lava pile. This detailed study based on megascopic and microscopic characteristic of the rock and geochemical analysis. The detailed stratigraphic investigation carried out in 465m thick lava pile exposed in the study area permit the broad division of Malwa subgroup into three formations namely Dahinala, Asirgarh and Amba. The formation boundaries are differing by characters such as field character, phenocrystic assemblages and appearance of giant phenocrystic basalt horizon (GPB). The Deccan traps offer excellent material for stratigraphic studies as the traps outcrop as an uninterrupted sequence of flows through of the terrain. Considering the vastness of the area and magnitude of the problem, a sincere attempt has been made in this study to establish the stratigraphy of Asirgarh volcanic. It is hoped that these results may provide a model to bring out the regional evolution and structure of Deccan Traps as a whole.