TY - BOOK AU - Walid Gamal Kassab AU - Ali Abdelmotelib Ali Khalil , AU - Mohamed Fouad Aly , AU - Mohamed Saleh Hassan Hammed , TI - Ichnology and paleoenvironmental reconstruction of the lower cambrian rocks Um Bogma Area Sinai Egypt / PY - 2010/// CY - Cairo : PB - Walid Gamal Kassab , KW - Cambrian Rocks KW - Ichnology KW - Paleoenvironmental Reconstruction N1 - Thesis (M.Sc.) - Cairo University - Faculty of Science - Department of Geology; Issued also as CD N2 - Facies and ichnofabric of the Lower Cambrian silicilastic rocks of Um Bogma region are correlated and compared to evaluate changes in palaeoceanographic conditions controlled by palaeogeography in the distal zone of the sourhern Tethys . The investigated slope forming Lower Cambrian sections are subdivided into two distinctive stratigraphic sequences ER -