Sedimentary Petro Graphic Characteristics of Zeit Formation (Suakin -1 Well) in Sudanese Red Sea Basin

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Year:
2018
Type of Publication:
Article
Keywords:
Petrography, Digenetic Processes, Sandstone, Depositional Environment
Authors:
Sadam. H. M. A. Eltayib; M. Abdelrahman El Sheikh; S. M. Ibrahim Ali; Ali A. M. Eisawi
Journal:
IJISM
Volume:
6
Number:
3
Pages:
105-110
Month:
May
ISSN:
2347-9051
Abstract:
The study area lies in NE Sudan along the eastern coast of the Sudanese Red Sea. The coastal plain is geologically characterized by Cenozoic siliciclastic and shallow marine rift related sedimentary sequences. Pliocene-Pleistocene interval is represented by the thick older gravel unit and the emergent reef terraces. The main objectives of this study is to determine the mineralogical composition and to classify the sandstone types to obtain information on their source areas, depositional environments, palaeoclimate, digenetic processes and to infer the tectonic history of the study area. Five sandstone samples were selected from the previous one mentioned conventional core from Suakin -1 Well depth (2308-2316m). The samples were selected during the core description and lithofacies analysis for the preparation of thin sections. Thin section investigations analysis of core samples from Zeit Formations has reveal of that the feldspar accounts for 19.8 – 23 %, quartz and the lithic fragments are ranging between 75.7 – 85.2 % and 0.0 – 7.3 % respectively. Consequently the sandstones are classified as sub litharenite. Thin section investigations analysis for the sandstones of Zeit Formation (Suakin -1 Well) have revealed, that their reservoir quality has been affected positively and negatively by several digenetic processes
Full text: IJISM_753_FINAL.pdf

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