Haytham El AtfyUniversity of Tuebingen | EKU Tübingen · Department of Geosciences
Haytham El Atfy
PD Dr (Geoscience)
About
63
Publications
19,158
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418
Citations
Introduction
Additional affiliations
April 2011 - December 2014
December 2004 - present
Education
April 2011 - December 2014
August 2006 - August 2008
Mansoura University
Field of study
- Geology and Paleontology
September 2000 - June 2004
Mansoura University
Field of study
- Geology
Publications
Publications (63)
Download a free copy using this link: https://www.tandfonline.com/eprint/SC2RXGHW88QRFGJVE9AB/full?target=10.1080/01916122.2021.2023057
Abstract
A palynological investigation was carried out on 24 samples from the Oligocene Dabaa Formation, which cuts across the Amana-1X well, located in the Abu El Gharadig Basin, north Western Desert, Egypt. Paly...
A new florula, dominated by angiosperm leaves, is reported from the Upper Cretaceous (Turonian?) Malihah Formation of Saudi Arabia. The leaves are fragmentary preserved as impressions with a rust coloured, mineral coating, thus it is only possible to describe the best-preserved leaf forms as morphotaxa for the time being. Eight angiosperm and two g...
We present an updated time frame for the 30 m thick late Miocene sedimentary Trachilos section from the island of Crete that contains the potentially oldest hominin footprints. The section is characterized by normal magnetic polarity. New and published foraminifera biostratigraphy results suggest an
age of the section within the Mediterranean biozo...
The evolution of the present-day African savannah fauna has been substantially influenced by the dispersal of Eurasian ancestors into Africa. The ancestors evolved endemically, together with the autochthonous taxa, into extant Afrotropical clades during the last 5 million years. However, it is unclear why Eurasian ancestors moved into Africa. Here...
The Eocene–Oligocene transition period was marked by one of the most abrupt and severe global environmental changes in the Cenozoic record, and this had a marked influence on the evolution of a number of animal and plant groups and entire ecosystems. This study documents continental palynomorphs recovered from the sedimentary rocks of the Dabaa For...
The Paleocene Fossil-Lagerstätte Menat in France is well known for its wealth of outstandingly well preserved fossil insects and plants. Despite being known for more than a century, the palaeoflora, which is regarded as typical for the late Thanetian by some authors, has largely been neglected since the 1940s. New excavations and surveys yielded ex...
Optical examination employing transmitted light and UV-fluorescence microscopy of palynological preparations of eighteen cutting samples representing the Alam El Bueib Member (Hautervian-Barremian), Kharita/lower Bahariya (Cenomanian), and Abu Roash (Turonian-Santonian) formations collected from the Faghur Hj5-1 well, north Western Desert, Egypt, a...
The study of the interaction of cicatricose spores related to the family Anemiaceae with other botanical groups in the palynological record contributes to a better understanding of the paleoecological, paleoclimatic and paleoenvironmental aspects of this family through geological times. The present work based on the investigation of Anemiaceae foss...
The study of the interaction of cicatricose spores, related to the family Anemiaceae, with other botanical groups, in the palynological record, contributes to a better understanding of the paleoecological, paleoclimatic and paleoenvironmental aspects of this family through geological times. The present work based on the investigation of Anemiaceae...
The taxon Paradoxopteris stromeri Hirmer, representing the rachis/petiole/stem of the fern Weichselia reticulata (Stokes et Webb) Fontaine, has a widespread occurrence in the Early–early Late Cretaceous of Northern Africa and the Near East, Europe, as well as South America. Here a new record of this taxon is presented from Cenomanian deposits at Ge...
The taxon Paradoxopteris stromeri Hirmer, representing the rachis/petiole/stem of the fern Weichselia reticulata (Stokes et Webb) Fontaine, has a widespread occurrence in the Early–early Late Cretaceous of Northern Africa and the Near East, Europe, as well as South America. Here a new record of this taxon is presented from Cenomanian deposits at Ge...
Palynological analyses of the Lower Cretaceous Alam El Bueib and Alamein members of the Burg El Arab Formation from the OBA. S-C and OBA. 3-1/1A wells, northern Western Desert, Egypt yielded 44 species of pteridophytic spores, 13 gymnosperm pollen, 9 angiosperm pollen, 24 dinoflagellate cysts, a diverse assemblage of foraminiferal test linings, fre...
The Upper Cretaceous (early Cenomanian) Bahariya Formation of Egypt has an outstanding reputation for its wealth of vertebrate remains, including a variety of iconic dinosaurs, like the carnivorous Spinosaurus and Carcharodontosaurus, as well as the herbivorous Aegyptosaurus and Paralititan. Besides these dinosaur fossils, the Bahariya Formation yi...
The fossil record contains abundant evidence for the activity of microorganisms in the form of characteristic decay structures within fossil plant remains. Despite an abundance of charcoal in many sedimentary environments, there is little published evidence of such decay structures within charcoal from pre-Quaternary clastic deposits. The present c...
The Upper Jurassic-Lower Cretaceous successions in the north Western Desert of Egypt are one of the most prolific hydrocarbon plays in North Africa. However, the source rock characteristics and depositional environments are still poorly understood. The current work assesses these sedimentary sections utilizing an integrated palynofacies and organic...
The palynological investigation of 30 outcrop samples from seven sites in and near the Qattara Depression, north Western Desert, Egypt, has yielded six samples from three sites containing poorly to well-preserved assemblages including dinoflagellate cysts, freshwater algae, acritarchs, pollen and spores. The sites have not been dated previously, bu...
The depositional environments and source rock potential of Jurassic to Lower Cretaceous and
Middle Miocene to Pleistocene successions in onshore Nile Delta were determined in two
onshore wells. The study used an integrated organic geochemistry and petrology as well as 1D
basin modeling approach. The Abu Hammad-1 well, located in the southeastern Ni...
The Abu Gharadig Basin in the north Western Desert is one of the major producing petroleum
basins in Egypt. The study aims to investigate the depositional environments and source rock
potential of Cenomanian to Santonian sediments of Bahariya and Abu Roash formations from
the GPT-3 well. The samples were analyzed for organic and inorganic carbon, s...
The Abu Gharadig Basin in the northern part of the Western Desert, Egypt is among the most important petroleum provinces in Egypt. Here, Cenomanian to Santonian rocks of Bahariya Formation and Abu Roash A-G members from the GPT-3 well were investigated for their depositional environment, kerogen quality, petroleum generation potential and thermal m...
Our comment is in keeping with our original approach which has been published by El Atfy et al. (2017), and is largely concerned with testing of Pediastrum as a key taxon in sequence stratigraphy and paleoecology of the Upper Cretaceous (mainly Turonian) successions based on subsurface material from the north Western Desert of
Egypt. It was not an...
Palynomorph and palynofacies particles from 29 cutting samples from the Alam El Buieb Member of Burg El Arab Formation in the oba-sc well, north Western Desert, Egypt have been analyzed. Retrieved spores and pollen grains are affiliated to the pre-Albian Dicheiropollis/Afropollis phytogeographical province, which reflects drier and warmer climatic...
One hundred and thirty-six core and cuttings samples from Upper Cretaceous–Eocene deposits that are believed to include the most important source rocks in the Sirte Basin have been subjected to Rock-Eval pyrolysis, total organic carbon measurements, and palynofacies and microfacies analyses to determine palaeoenvironments and the thermal maturation...
The GH 404-2A Well, located in the southern Gulf of Suez, has been investigated palynologically from the Miocene Rudeis and Kareem formations of the Gharandal Group. Both formations produced diverse palynomorph assemblages comprising dinoflagellate cysts, spores and pollen, algae, fungal palynomorphs, scolecodonts and microforaminiferal linings. Fo...
Palynological investigations of samples collected from the Abu Roash Formation, Faghur Hj5-1 well, north Western Desert, Egypt show a low diversity in palynomorph assemblage. This assemblage is mainly dominated by a clear proliferation of Pediastrum (and other allied algal forms, e.g., Scenedesmus and Botryococcus) which today lives exclusively in...
Organic geochemical characterization of cutting samples from the Abu Hammad-1 and Matariya-1 wells elucidates the depositional environment and source rock potential of the Jurassic and Lower Cretaceous successions and the Middle Miocene to Pleistocene section in the southern and eastern Nile Delta Basin. The burial and thermal histories of the Meso...
This paper reports the results of Rock-Eval pyrolysis and total organic carbon analysis of 46 core and cuttings samples from Upper Cretaceous potential source rocks from wells in the West Sirte Basin (Libya), together with stable carbon isotope (δ¹³C) and biomarker analyses of eight oil samples from the Paleocene – Eocene Farrud/Facha Members and o...
Although the fossil record of plant macro- and mesofossils, including fossil charcoal, is by its nature patchy in space and time, such remains play an important role for the interpretation of palaeoenvironmental and palaeoclimatic developments in the continental realm. In Egypt, previous palynological studies on sediments from the Late Cretaceous s...
The present study of the Yamama, Ratawi, and Zubair formations refines our understanding of the subsurface Cretaceous of the southern Iraq. Our investigations are based on the palynological analyses of 15 core samples, the same suit of samples have been previously tested for organic geochemistry.
Detailed organic geochemical and petrographic study...
A study on source rock characterization and paleoenvironmental interpretation has been carried out on a relatively thick Miocene sedimentary succession from three wells (GH 404-2A, GH 420-1, SA-E6A) in the southern Gulf of Suez, Egypt. The compilation of detailed optical investigations, including palynofacies analysis, spore coloration index (SCI),...
Palynological results of a detailed study carried out on 56 samples retrieved from two selected wells (GH 404-2A and SA-E6A) of the Hilal and Shoab Ali fields within the southern part of the Gulf of Suez, Egypt, are presented. This study is mainly focused on the poorly dated Nukhul Formation, for which very little information from palynology is ava...
Despite the abundance of Triassic outcrops in S Germany knowledge about continental ecosystems from the Norian is rather scarce so far for this region. A new fossil-bearing site from the Lower Löwenstein Formation (Unterer Stubensandstein; Norian) of north-eastern Baden-Württemberg (SW Germany), discovered in 2011, yielded disarticulated vertebrate...
The palynological contents as well as macroscopic charcoal fragments from a calcareous sandstone pebble from Quaternary glacial deposits of the North Sea (80 km SW of the Dogger Bank) are described. The taxonomic composition of the palynoflora points to a Late Jurassic (or Late Jurassic/Early Cretaceous) age of the sandstone. The charcoal is interp...
Moderately to well-preserved palynomorph assemblages were recorded from thirty samples of the Nukhul Formation (GH 404-2A Well), southern Gulf of Suez, Egypt. The taxa are dominated by highly diverse fungi, freshwater algae (e.g. Botryococcus, Pediastrum) beside a sparse record of spores and pollen. Marine palynomorphs, such as dinoflagellate cysts...
Pflanzenfossilien spiegeln in idealer Weise die kontinentalen
Umwelt- und Klimabedingungen in der erdgeschichtlichen
Vergangenheit wider. In wissenschaftlichen Analysen liefern sie daher sehr oft die Primärdaten, mit denen Umwelt- und Klimabedingungen, wie etwa Jahresmitteltemperaturen und Jahresniederschlagssummen, aber auch die Zusammensetzung de...
Palynological investigation of the Cretaceous Abu Roash, Bahariya, Kharita, Alamein, Alam El Bueib and Betty formations, encountered in the Gebel Rissu-1 well, north Western Desert, Egypt yielded 27 species of pteridophytic spores, 24 of gymnosperm pollen, 25 of angiosperm pollen and 11 of dinoflagellate cysts in addition to some acritarchs, forami...
Palynological investigation of the Cretaceous Abu Roash, Bahariya,
Kharita, Alamein, Alam El Bueib and Betty formations, encountered in the Gebel Rissu-1 well, north Western Desert, Egypt yielded 27 species
of pteridophytic spores, 24 of gymnosperm pollen, 25 of angiosperm pollen and 11 of dinoflagellate cysts in addition to some acritarchs, foram...
Palynological investigations of the mid-Cretaceous, delta-influenced Malha Formation and superjacent transgressive Galala Formation exposed at Gebel El Minshera, north Sinai, Egypt, have yielded a sparse but biostratigraphically useful record of spores, pollen, and rare dinoflagellate cysts. A representative of the pollen genus Tricolporites, recov...
The present study of the Abu Roash and Bahariya formations in well GPTSW-7 refines our understanding of the subsurface Cretaceous of the north Western Desert of Egypt. Our investigations are based on the palynological analyses of 71 cuttings samples, of which 24 have also been analyzed for geochemistry, in addition to 3 sidewall cores analyzed for...
Projects
Projects (5)
In order to understand the origin of the TRF vegetation which is so crucial to our world climate, we
have to study new material from an area where rainforest might have had its origin, namely North
Gondwana.
NECLIME is an open international network of scientists working on Cenozoic climate evolution and related changes of continental ecosystems.
During the past 65 million years of Earth history, globally warmer-then-present conditions prevailed in a world with almost modern paleogeography. These timespans represent promising case studies for anticipated future scenarios.
Within the NECLIME network, we aim to combine data on past climate change and its environmental impact for large-scale reconstructions. NECLIME research activities comprise paleoclimate reconstructions, including atmospheric CO₂ and ecosystem analysis using multiple quantitative methods on various primarily continental proxies (plants; vertebrates; invertebrates; geochemistry and geological proxies). Complementing model studies are employed to assess connections and processes driving ocean, atmosphere and biosphere at global and regional scales.
NECLIME was established in 1999 with the aim to understand Neogene trends across Eurasia. This basic idea quickly and constantly expanded to a global interest and a wider stratigaphical frame. The steadily growing NECLIME network with currently around 140 members in 34 countries is coordinated by a team of researchers and an advisory board. NECLIME holds annual conferences and workshops and administers working groups bringing forward scientific exchange, joint projects, and the integration of research data.
For more information go to www.neclime.de
