UPPER CRETACEOUS CARBONATE ROCKS, GEBEL QABILIYAT, SOUTH WEST SINAI, EGYPT: PETROGRAPHY AND GEOCHEMISTRY

Ibrahim, D Saadawy
2015 IJISET-International Journal of Innovative Science, Engineering & Technology   unpublished
The present paper deals with Geology and Geochemistry of Upper Cretaceous rocks exposed at Gebel Qabiliyat-South West Sinai-Egypt. The studied area lies between Latitudes 28º 19' 00ʹʹ and 28º 31' 00ʹʹ N. and longitudes 33º 22' 00ʹʹ and 33º 34' 00ʹʹ E. approximately. Lithic studies of Upper Cretaceous sediments are subdivided into four rock units from base to top: Cenomanian (Raha Formation); Turonian (Abu Qada and Wata Formations); Coniacian-Santonian (Matulla Formation) and
more » ... Campanian-Maastrichtian (Sudr Formation). Petrographic, depositional environments and diagenetic studies of 33 carbonate samples reveal that they are characterized by both of uniform and cyclically alternating open and restricted marine and evaporate environments of the carbonate facies spectrum (7-9 of Bank interior deposits) with a prevailing lime muddy sediments. Diagenetically, the carbonate rocks were subjected to submarine and subaerial environments. Chemical analyses of 24 selected samples were studied to detect the distribution of both major and trace elements. The physiochemical parameters of the depositional environment during Upper Cretaceous times indicate its shallow marine warm conditions.
fatcat:rdddje5vm5hfhmyncg5xqevyhq