Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Emad Nagm"'
Publikováno v:
Acta Palaeontologica Polonica, Vol 68, Iss 4, Pp 639-657 (2023)
Systematic palaeontological and biometric-statistical analyses (classical clustering and linear discriminant analysis) of statistically significant populations of three early Turonian ammonite species from offshore marls of the Brießnitz Formation
Externí odkaz:
https://doaj.org/article/2612ba6bee9b4a29881ae60272d4e7ab
Autor:
Markus Wilmsen, Emad Nagm
Publikováno v:
Acta Palaeontologica Polonica, Vol 64, Iss 4, Pp 831-849 (2019)
Cretaceous nautiloids are commonly characterized by inflated shells and prolonged stratigraphic ranges. In the Albian, the species of Angulithes appeared and compressed, short-lived forms with narrow venters emerged during the Cenomanian age. Based o
Externí odkaz:
https://doaj.org/article/b31efc247b414753bcc8e4bd6a54b06b
Publikováno v:
Proceedings of the Geologists' Association. 132:70-92
The changes in macrofauna and microfauna, before, during and after the latest Cenomanian global Oceanic Anoxic Event (OAE2), from the Eastern Desert of Egypt are documented, along with an inferred paleoenvironment. The age of the studied OAE2 interva
Publikováno v:
Journal of African Earth Sciences. 199:104846
High Mg-glauconite in the Campanian Duwi Formation of Abu Tartur Plateau, Egypt and its implications
Publikováno v:
Journal of African Earth Sciences. 156:12-25
This study presents a detailed crystallo-chemical characterization of glauconites occurring at different stratigraphic intervals within the phosphorite-bearing Campanian Duwi Formation. While authigenic glauconites occur within the shallow marine, tr
Autor:
Emad Nagm
Publikováno v:
Marine and Petroleum Geology. 102:740-750
Late Cretaceous environmental changes are manifested in several bioevents, which have been used as important tools for basin analysis, sequence stratigraphic interpretation and global correlations. One of these events is the hitherto poorly known lat
Autor:
Emad Nagm, Noureddine Boualem
Publikováno v:
Cretaceous Research. 93:197-210
Fourteen bivalve species are recorded for the first time from new exposures of poorly known upper Albian marine rocks in northwest Algeria provided by construction works in the south of Tiaret city. The documentation of the Albian transgression in th
Publikováno v:
Journal of Asian Earth Sciences. 163:163-176
A new high-resolution stratigraphic framework for the thick and well-exposed Lower Cretaceous rocks of Saudi Arabia has been provided. The studied successions consist mainly of carbonates with minor interbedded siliciclastics, forming the Silayy, Yam
Publikováno v:
Journal of African Earth Sciences. 184:104370
This research article is a field-oriented facies analysis of Quaternary fluvial sediments of the ephemeral braided stream Khor Eit, located on the Sudanese Red Sea coast north of Port Sudan town. Although these sediments represent the main groundwate
Autor:
Ahmed M. El-Sabbagh, Ahmed S. Mansour, Mohamed A. Rashwan, Magdy M. El-Hedeny, Emad Nagm, Abdelaal A. Abdelaal, Heba Mansour
Publikováno v:
Cretaceous Research. 125:104853
The palaeoecology and palaeoenvironments of the Cenomanian–lower Turonian succession in the northern Eastern Desert of Egypt are interpreted, based on a detailed study of macrofaunal assemblages and sedimentary facies. The abundant molluscs and ech