Granulometric Study of Upper Vindhyan Sandstones and its Implications in the Depositional environment for the area around Marwara, District Kathi, Madhya Pradesh.

Abstract

Granulometric study of sediments the most important tool to decipher the transportation history of detrital grains and depositional environment of sediments. In the present study an attempt has been made to carry out the granulometric study of the Murwara area, Katni district, sandstone of Upper Vindhyans of the Meso to Neoproterozoic age. In this study the grain size and roundness have been measured and presented in the bar diagrams showing that these rocks consist of fine sand size, rounded to sub-rounded, moderately well sorted nearly symmetric and lepto to platykurtic. The results of bivariate plots show clustering of data and the results of the diagrams plotted between kurtosis and skewness reveal that these sedimentary rocks have been formed the combination of fluvial and shallow marine deltic regime as their transportation might been through fluvial agency and has been deposited, in shallow marine environment.