Facies Analysis and Biostratigraphy of the Miocene Sequence,Cairo-Suez District,Egypt

作     者：Abdelbaset El-Sorogy Mohamed Abd-Elmoneim Ahmed Mowafi Khaled Al-Kahtany Hisham Gahlan 

作者机构：Department of Geology and Geophysics College of Science King Saud University Riyadh 11451 Saudi Arabia Geology Department Faculty of Science Zagazig University Zagazig 44519 Egypt 

出 版 物：《Journal of Earth Science》 (地球科学学刊（英文版）)

年 卷 期：2017年第28卷第1期

页      面：1-8页

核心收录：

学科分类：070903[理学-古生物学与地层学(含：古人类学)] 0709[理学-地质学] 07[理学] 

基　　金：the Deanship of Scientific Research at King Saud University for its funding this research group (No.RG-1436-036) 

主　　题：facies analysis biostratigraphy Miocene Cairo-Suez District Egypt. 

摘      要：Miocene siliciclastic-carbonate deposits are widely exposed in Cairo-Suez District, Egypt. These deposits are underlain and overlain by continental sediments of Oligocene and post Miocene, respectively. Three stratigraphic sections were investigated at Gabals Geneife, Homeira and Gharra. Lithostrtigraphically, the Miocene sequence could be differentiated into two main rock units representing shallow deposits with relatively intermittent deep marine incursions. These are from base to top, Gharra Formation and Genefe Formation. Detailed macrofossils investigations led to the recognition of four macrofossil zones, namely Alectryonella plicatula-Crassostrea frondosa Range Zone, Echinolampas amplus-Scutella ammonis Range Zone, Chlamys（Macrochlamys） sardoa-Chlamys（Argopecten） submalvinae Range Zone, and Chlamys gentoni-Pecten（Oppenheimopecten） benedictus-Pecten（P.） ziziniae Assemblage Zone. Microfacies analysis and identified taxa indicated that the Miocene sequence was deposited in transgressive-regressive cycles ranged from near shore, warm shallow inner to middle shelf marine environments with storm influence during the accumulation of the oyster banks.