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Full-Text Articles in Physical Sciences and Mathematics
Upper Paleocene-Lower Eocene Calcareous Nannofossil Stratigraphy At The Misheiti Section, Central Sinai, Egypt, Atef M. Kasem, Sherwood Wise, Mahmoud Faris, Sherif Farouk, Esam Zahran
Upper Paleocene-Lower Eocene Calcareous Nannofossil Stratigraphy At The Misheiti Section, Central Sinai, Egypt, Atef M. Kasem, Sherwood Wise, Mahmoud Faris, Sherif Farouk, Esam Zahran
Turkish Journal of Earth Sciences
Calcareous nannofossil, δ13C, δ18O, and carbonate content data were used to define and reveal the variations across the latest Paleocene-earliest Eocene interval at the Misheiti Section, Central Sinai, Egypt. The upper part of Tarawan Formation, the Esna Formation, and the lowermost Thebes Formation were included in this study. In this study, the Esna Formation is informally divided into Hanadi/Mahmiya and Abu Had members. Four calcareous nannofossil zones (NP9, NP10, NP11, and NP12) and four subzones (NP9a, NP9b, NP10a, and NP10b) were recognized. The biostratigraphic importance of significant calcareous nannofossil bioevents associated with the P/E boundary was discussed. The LOs of …
Integrated Biostratigraphy And Benthic Foraminifera Of The Middle-Upper Eocenedeposits Of Urtsadzor Section (Southern Armenia), Elena Zakrevskaya, György Less, Eleonora Bugrova, Ekaterina Shcherbinina, Taron Grigoryan, Lilit Sahakyan
Integrated Biostratigraphy And Benthic Foraminifera Of The Middle-Upper Eocenedeposits Of Urtsadzor Section (Southern Armenia), Elena Zakrevskaya, György Less, Eleonora Bugrova, Ekaterina Shcherbinina, Taron Grigoryan, Lilit Sahakyan
Turkish Journal of Earth Sciences
The Urtsadzor section, typical for the Paleocene-Eocene of Southern Armenia, is composed of hemipelagic to shelf succession. Planktonic foraminifera (PF), larger benthic foraminifera (LBF), and nannofossils were studied from Priabonian sediments of Urtsadzor section that enabled direct correlation of the biohorizons of these three groups. We present here the results of the microfossil study from the Bartonian and Priabonian parts of the section, with a special focus on larger and smaller benthic foraminifera (SBF). The 350 m thick studied interval corresponds to the planktonic foraminiferal zones P12/E10-11 to P15/E15, the nannofossil zones NP16 to NP19, the LBF zones SBZ17 to …