Integrating graphic correlation and similarity matrix of the Early Paleogene rock units in South Sinai, Egypt

Abstract

This article aims to provide a simple and applicable method of measuring the rock accumulation rate and recording the depositional events based on the application of graphic correlation and similarity matrix of the Paleogene planktonic foraminifera in two surface sections in South Sinai. Fifteen continuous biozones and subzones were recorded spanning from P0 to E3. The average RAR of the Beida Formation was somewhat equal to that recorded for the Dakhla Formation, however, the Selandian‐Ypresian Garra Formation was more than twice that recorded for the Esna Formation. On the other hand, the Thebes Formation represents a reverse setting which is relatively higher in the south than the north. Seven (T1‐T7) and twelve (T1‐T12) terraces were recorded at different stratigraphic positions. The terraces diverged in the Palaeocene and converged in the Eocene, whereas they lengthen in the Palaeocene and shortened in the Eocene. Breaks identified in the SM support many of the poorly constrained terraces on the GC, however, the SM technique efficiently recorded around 60% of the terraces recorded by GC. For confirming the terraces identified, field and faunal parameters confirm all the recorded events, however, a further correlation with their equivalent in and outside Egypt has been made which confirms another support of the technique applied. Therefore, the integration between these techniques in recognizing the depositional events and sedimentation breaks supports further depositional and palaeobathymetical studies and regional correlation as well.