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Full-Text Articles in Physical Sciences and Mathematics
Calcareous Nannofossils Of The Paleocene Eocene Transition In Four Sections From Egypt, Mahmoud Faris, Sherif Farouk
Calcareous Nannofossils Of The Paleocene Eocene Transition In Four Sections From Egypt, Mahmoud Faris, Sherif Farouk
Turkish Journal of Earth Sciences
A detailed analysis of calcareous nannofossil assemblages was carried out across the Paleocene-Eocene transition in four outcrops in Egypt (the Gebel Matulla, Markha, El-Quss Abu Said, and Gebel Duwi sections) that span the Discoaster multiradiatus (NP9) to Discoaster binodosus (NP11) zones. The Paleocene-Eocene (P/E) boundary is placed in the lower part of the Esna Shale Formation based on the LOs of the Calcareous Nannofossil Excursion Taxa (CNET or RD) that define the base of NP9b. The studied sections are considered complete and document the Paleocene-Eocene Thermal Maximum (PETM). The occurrences of long-armed and asymmetrical discoasters (e.g., D. araneus, D. anartios) …
Petrography And Geochemistry Of Pharaonic Sandstone Monuments In Tall San Al Hagr, Al Sharqiya Governorate, Egypt: Implications For Provenance And Tectonic Setting, Samir Mahmoud Zaid, Oussama El Badry, Fatma Ramadan, Mahmoud Mohamed
Petrography And Geochemistry Of Pharaonic Sandstone Monuments In Tall San Al Hagr, Al Sharqiya Governorate, Egypt: Implications For Provenance And Tectonic Setting, Samir Mahmoud Zaid, Oussama El Badry, Fatma Ramadan, Mahmoud Mohamed
Turkish Journal of Earth Sciences
Petrographic and major and trace element compositions of Tanis sandstones from Tall San Al Hagr, Al Sharqiya Governorate, Egypt, have been investigated to determine their source, provenance, intensity of paleoweathering of the source rocks, and tectonic setting. Tanis sandstones are yellowish brown in color, siliceous, partly calcareous, and originated from sands deposited in fluvial channels. Texturally, Tanis sandstones are medium- to very coarse-grained, mature, and moderately sorted. Scarcity of feldspars indicates that the sandstone is extensively recycled from a distant source. Their average modal composition (Q99.75F0.03L0.22) classifies them as quartz arenites (quartzite), which is consistent with the geochemical study. Chemical …