Application of palynomorphs and palynofacies in Early Cretaceous paleoenvironmental reconstruction; Shushan Basin, Egypt

• Autorzy: Mahmoud Magdy , Temraz Amal , Moawad Abdel-Rahim , Khalaf Miran

Identyfikatory

DOI

10.24425/agp.2024.150004

• Języki publikacji: EN

Abstrakty

EN

An integration of palynomorph and palynofacies data from the Shushan-1X well is used to infer the paleoenvironmental conditions of the Valanginian to Middle Cenomanian (Cretaceous) section of the western Shushan Basin, northern Egypt. The data obtained contribute significantly to the depositional history of the basin. The low diversity of dinoflagellate cyst assemblages, along with the dominance of land-derived spores and pollen, suggest restricted (marginal) marine environments, in contrast to their coeval representatives from the Tethyan Realm. Open marine (inner shelf) environments developed at a few horizons in the Dahab and Bahariya formations, partly contemporary with the global Aptian and Cenomanian eustatic cycles. These environments were relatively more offshore than those described in the eastern and southeastern parts of the basin. The study of total palynological organic matter (TPOM) has contributed largely to these established environmental settings. It has also allowed the recognition of redox (suboxic to anoxic) conditions and the impact of a large magnitude of terrigenous influence.

Słowa kluczowe

EN

cretaceous; paleoenvironment; palynomorphs; palynofacies; Egypt

PL

kreda; paleoekologia; palinomorfy; palinofacja; Egipt

• Wydawca: Faculty of Geology of the University of Warsaw ; Komitet Nauk Geologicznych PAN
• Czasopismo: Acta Geologica Polonica
• Rocznik: 2024
• Tom: Vol. 74, no. 2
• Strony: art. no. e13
• Opis fizyczny: Bibliogr. 63 poz., rys., tab., wykr.

Twórcy

autor

Mahmoud Magdy

• Geology Department, Faculty of Science, Assiut University, Assiut 71516, Egypt

autor

Temraz Amal

• Geology Department, Faculty of Science, South Valley University, Qena 83523, Egypt

autor

Moawad Abdel-Rahim

• Geology Department, Faculty of Science, South Valley University, Qena 83523, Egypt

autor

Khalaf Miran

• Geology Department, Faculty of Science, Sohag University, Sohag 82524, Egypt

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa nr POPUL/SP/0154/2024/02 w ramach programu "Społeczna odpowiedzialność nauki II" - moduł: Popularyzacja nauki (2026).