Petrofacies Evolution of Bayana Basin Sandstones of Mesoproterozoic Delhi Supergroup, Bharatpur District, Rajasthan, Northwestern India

Abul Hasnat Masood Ahmad, Chayanika Saikia, Syed Mohammad Wasim

Department of Geology, Aligarh Muslim University, Aligarh, India.
Directorate General of Hydrocarbons (DGH), Delhi, India.

DOI: 10.4236/ojg.2012.24026                

Abstract

The paper embodies results of petrofacies, detrital mineralogy and textural aspects of Bayana Basin sandstones of the Delhi Supergroup. These sandstones consisting of various types of quartz, feldspar, mica, rock fragments and heavy minerals are medium to fine grained and moderately well sorted. These sediments are generally subangular to subrounded with low sphericity. Various factors responsible for modification of the original detrital composition of the sandstones have been critically examined. Distance of transport is one of the factors which control the composition at the time of deposition. The plots of petrofacies in QtnFnL, QmnFnLt, QpnLvnLs and QmnPnK ternary diagrams suggest mainly basement uplift source (Craton interior) in a rifted continental margin basin setting, which has also received sediment input from recycled orogen provenance.

Keywords

Petrofacies Evolution; Bayana Basin; Mesoproterozoic; Bharatpur District (India)

Conflicts of Interest

The authors declare no conflicts of interest.

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