Micropalaeontology and Depositional Environment of the Early Eocene Margala Hill Limestone and Chor Gali Formation of the Khairi Murat Range,Potwar Basin, Pakistan

Abstract

The Early Eocene Margala Hill Limestone, Chor Gali Formation and the Middle Eocene Kuldana Formation are exposed along the Khairi Murat Fault in the Khairi Murat Range, Potwar basin. The carbonate rock units of the Khairi Murat Range contain a variety of benthonic foraminiferal genera such as Assilina, Nummulites and Alveolina. The presence of Early Eocene benthonic foraminiferal assemblages and dolomitization in the carbonate sequence of the Margala Hill Limestone and the Chor Gali Formation indicates a shallow marine, shelf and intertidal to supratidal environment of deposition.