Late Cretaceous palynology and paleoenvironment of the Razzak-3 well, North Western Desert, Egypt

Characteristics of Cenomanian–Turonian Oceanic Anoxic Event 2 and its Impact on Organic Carbon Accumulation in the Abu Roash (F) Organic-Rich Carbonate Rocks in the Abu Gharadig Field, Egypt

“…28 These microfacies suggest an open marine environment from slope to deep-shelf settings. 28,19 The OAE2 of the C/T succession of the Abu Roash-F Member has been well documented using stable isotopes, as concluded by Ibrahim et al 17 and Zobaa et al 19 However, the Abu Roash (F) Members have dense organic-rich sediments and act as conventional and unconventional petroleum resources in the basin. 29,30…”

“…They also reported that the Abu Roash-F Member has an inner shelf environment by investigating palynomorphs, including spores, pollens, and dinoflagellates. 17,19 Zobaa et al 19 additionally showed that the C/T boundary in the Razzak Field has characteristics similar to those of OAE2, including a shift in carbon isotope readings, as demonstrated by a δ 13 C org of ∼2.01‰. Therefore, the high organic matter (TOC = 24.61 wt %) in the Abu Roash-F Member is probably accredited to reducing marine paleoenvironmental conditions during the C/ T. 19 Although extensive research has been carried out on the Cenomanian−Turonian age and their successions in Egypt, the C/T boundary sequence in the northwestern desert (Egypt) is partially unraveled and more analyses are still needed, specifically on the depositional environment factors and their implications for understanding organic carbon accumulation.…”

Source rock evaluation and petroleum system modeling of the East Beni Suef Basin, north Eastern Desert, Egypt

“…The Paleo water depth (PWD) was estimated based on the interpreted depositional environments of different rock units from previous sedimentological and paleontological studies (e.g. El Beialy et al, 2011;Salem and Sehim, 2017;Tahoun et al, 2017;Farouk et al, 2018;Shehata et al, 2018aShehata et al, , 2019Ibrahim et al, 2020;Mahfouz et al, 2020). The Sediment-Water Interface Temperature (SWIT) was calculated using the global mean temperature at sea level for latitudes of 28° and 29°, Northern Africa, based on Wygrala (1989).…”

Palynology and calcareous nannofossil biostratigraphy of the Turonian – Coniacian boundary: The proposed boundary stratotype at Salzgitter-Salder, Germany and its correlation in NW Europe

“…Palynological analysis of the Cretaceous section of the Konrad 101 cored borehole at an average spacing of 5 m by Prössl (1990; 131 samples) provides some of the most comprehensive information on dinocyst ranges for the Hauterivian -lower Coniacian of northern Germany available to date, and this has become a widely cited source (e.g. Nøhr-Hansen, 1996;Torricelli, 2000;Prauss, 2001;Williams et al, 2004;Prince et al, 2008;Svobodová et al, 2011;Masure et al, 2013;Olde et al, 2015a;Dodsworth and Eldrett, 2019;Estebenet et al, 2019;Tahoun and Ied, 2019;Ibrahim et al, 2020;Pearce et al, 2020).…”