SEQUENCE STRATIGRAPHY OF THE EOCENE ROCKS IN QATAR PENINSULA, ARABIAN GULF

Abstract

The Eocene sedimentary succession of Qatar is subdivided, from older to younger, into the Umm er Radhuma, Rus and Dammam formations. This Eocene succession forms a part of the Arabian Plate Megasequence (AP10) and has been partitioned into two sequences; Pg 10 and Pg 20 respectively. The lithofacies and biofacies studies of this Eocene megasequence in Qatar have enabled the identification and interpretation of the depositional settings and faunal elements of the different Eocene units. The lower Pg 10 sequence is represented by the shallow water Umm Er Radhuma and Rus formations, and is subdivided into a lower transgressive and an upper highstand systems tracts, while the upper Pg 20 sequence is represented by the shallow water Dammam Formation, and is subdivided into a transgressive and a highstand systems tracts. These two sequences are bounded by three major sequence boundaries.