Lithofacies and depositional environments Of the lower jurassic sediments In central Saudi Arabia

Abstract

The lithofacies, microfacies and sedimentary environments of the surface Lower. Jurassic sediments in central Saudi Arabia are studied. The Lower Jurassic is represented by the marine clastic Marrat Frormation which is subdivided into twelve microfacies associations. The lithofacies characters of different units are discussed and used to interpret the environmental conditions prevailed during deposition of these units. The Lower Jurassic sequences in Central Saudi Arabia are believed to be deposited in tidal flat gradually changed to subtidal setting.