
Mohamed I.A. IbrahimAlexandria University | AU · Faculty of Science
Mohamed I.A. Ibrahim
PhD
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57
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Introduction
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April 1981 - present
Publications
Publications (57)
The Umm Irna Formation, covering a large area in Jordan, shows lithological variations from one area to another. The previous palynological works assigned a Permian age to this rock unit. The current palynological analysis was achieved on twenty samples taken from the claystone and shale interbeds of the Umm Irna Formation. Most of the selected sam...
The critical study of spatiotemporal pollenPollens dispersal is rarely reported in arid and semi-arid countries like KuwaitKuwait. PollenPollens grains in the state of KuwaitKuwait were seasonally monitored for three years (fall 2009–summer 2011). On a regional and temporal basis, pollenPollens data were used to identify and find a correlation betw...
Twenty-eight pairs of pollen and aeolian dust traps covering the State of Kuwait were used to obtain seasonal pollen counts of the most eight dominant families during 2009–2011 i.e. Chenopodiaceae, Poaceae (Gramineae), Cyperaceae, Leguminosae (Fabaceae), Cyperaceae, Brassicaceae, Malvaceae, Compositae, and Plantaginaceae.
The sampling site location...
This open access book serves as an atlas of deposited dust and dust storms in Kuwait in relation to local and global regions. It features a wealth of maps and images of dust storm trajectories in the region, together with detailed descriptions of the chemical and physical properties of fallen dust, including the amount, particle size, statistical p...
The assemblages of benthic foraminifera were studied in surface sediment samples collected along two transects from the mangrove swamp and the intertidal flat zone in Abu Ghoson area, the Red Sea coast of Egypt, to validate and support their use as bio-indicators of ecosystem quality. Using Q-mode and R-mode cluster analyses, three biotopes followi...
Palynological analysis of the Bahariya and Abu Roash Formations from the Razzak-3 (RZ-3) well, North Western Desert, Egypt, has yielded rich and very-well-diversified spores, pollen and dinoflagellate cysts which allow subdividing the studied rock units into four pollen/spore (PS) zones and three dinoflagellate cyst (D) zones. Miospores are abundan...
Four palynological and three diatom zones of Mid-to Late Holocene are identified along a 370-cm-long radio-carbon dated sediment core collected in Lake Hamra at Wadi El Natrun (Western Nile Delta, Egypt). The Mid-Late Holocene between the Predynastic to Old Kingdom was terrestrial wetland habitat with high seasonal rainfall and/or Nile flood as rev...
Paleontological and sedimentological analyses were carried out in sediment core from southeastern Mediterranean Sea, offshore Egypt to reconstruct the past environmental changes in trophic state and temperature during Holocene. To achieve our goals, grain size, total organic carbon, planktic and benthic foraminifera, dinoflagellate cysts have been...
An aeropalynological study was carried out in the atmosphere of Rosetta city, Egypt during a period of one year from August 2015 until July 2016, using a Hirst type volumetric pollen trap. An annual pollen index of 1991 grains was obtained with the highest pollen records from February till May. The main pollen taxain abundance order are Poaceae, Ar...
The studying of spatial and temporal distribution of pollen is essential, but rarely tackled in the region including Kuwait. Pollen grains and aeolian dust in the state of Kuwait were seasonally monitored from August 2009 to August 2011 to identify and correlate spatially and temporally pollen data with human health asthma and allergy data. The yea...
Twenty-four sediment samples were collected from six coastal areas along the Nile Delta coast, including Abu Qir Bay, Rosetta estuary, Abu Khashaba, El Burullus fishing port, El Gamil inlet and Damietta Harbor. Environmental parameters such as grain size, total organic matter, calcium carbonate and seven heavy metals concentration have been investi...
This paper presents the results of a qualitative palynological analysis of a 200 cm section of Holocene sediments from Fayoum Depression, Egypt. Fifteen different types of spores (three bryophyte and 12 pteridophyte) were identified, described and photographed, together with the ecological data of the organism of origin.
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An emended diagnosis of the angiosperm pollen genus Cretacaeiporites is proposed to encompass all attributed species. A comprehensive review of all Cretacaeiporites species is also given with the description of C. aegyptiaca sp. nov. from...
The coastal waters of Al-Mukalla, Hadramout Governate, Republic of Yemen, receive considerable amounts of treated and untreated domestic and industrial effluents, which carry a variety of contaminants including heavy metals. We surveyed benthic foraminiferal assemblages as potential indicators for pollution and collected geochemical, sedimentologic...
We report on the sedimentology, pollen and diatom records in a 26 m long core of Holocene sediments from the Tersa area, near the centre of the Faiyum Depression (Egypt). Two radiocarbon and one OSL dates have been obtained for the core, dates range from 9545 ± 60 Cal. BP to c. 4040 BP. These correspond respectively with the Terminal Palaeolithic (...
This paper presents the palynological results of the late Callovian – middle Cenomanian sediments in the Alamein-IX well drilled in
the northern part of theWestern Desert of Egypt. The studied section yielded five formations from base to top, namely Masajid, Alam
El Bueib, Alamein, Kharita and Bahariya. Fifty one miospore and thirty three dinoflage...
The present study examines the foraminiferal distribution in recent bottom sediments of Abu-Qir Bay located along the Mediterranean coast of Alexandria, Egypt. Abu-Qir Bay receives substantial amounts of heavy metals from the surrounding industrial area, as well as agricultural and domestic effluents, which makes it one of the most polluted areas a...
The oil producer Arab "D" unit in Qatar as well as in eastern Arabian Peninsula is composed of limestone and dolomitic limestone assigned to the Kimmeridgian age. In Qatar, this member reveals the presence of six rhythmic microfacies of mudstone (micrite), wackestone, dolomitic wackestone, packstone, grainstone and anhydrite. These sediments are be...
To determine the relationship between the spatial dinoflagellate cyst distribution and oceanic environmental conditions, 34 surface sediments from the Eastern and Western Mediterranean Sea have been investigated for their dinoflagellate cyst content. Multivariate ordination analyses identified sea-surface temperature, chlorophyll-a, nitrate concent...
Marine palynological studies of Quaternary sediments usually focus on dinoflagellate and pollen assemblages for paleoceanographic and paleohydrographic interpretations of past events. This paper focuses on the use of palynofacies analysis for paleohydrological reconstructions of deltaic and deep sea environments to evaluate transport of organic mat...
An Upper Cretaceous spore-pollen and dinoflagellate zonation in two deep wells (AG-5 and AG-13) of the Abu Gharadig oil field, Northwestern Desert, Egypt is presented. Six pollen and spores zones equivalent to five dinoflagellate and phytoplankton zones are defined for the Cenomanian-Santonian Bahariya and Abu Roash formations. One new pollen speci...
Bahariya Formation and Abu Roash “G” Member sediments in the Razzak Well #7, North Western Desert, Egypt contain abundant kerogen and fossil palynomorphs. In this study, we examined changes in these organic components and use them to interpret paleoenvironmental conditions and biostratigraphy. Terrestrial organic components dominate the Bahariya Fo...
Fish cages are claimed to be one of the largest pollution sources in the downstream of Damietta Branch, along River Nile Egypt. The use of poorly processed fish feeds, low quality feed ingredients and over feeding are among the main causes of environmental deterioration in that area. This study was carried out to determine the environmental impact...
Bahariya Formation and Abu Roash "G" Member sediments in the Razzak #7 well, North Western Desert, Egypt, contain abundant kerogen and fossil palynomorphs. In this study, we examined changes in these organic components and use them to interpret paleoenvironmental conditions and biostratigraphy. Terrestrial organic components dominate the Bahariya F...
The relatively complete Campanian to early Danian succession in the western Central Sinai is subdivided into 16 planktic foraminiferal biozones.The extinctions in the interval embracing the K/Pg boundary took place during a rather short time interval. Among the planktic foraminifera, 10 to 14 species disappeared during the latest Maastrichtian, 45...
Quantitative analyses of palynomorph assemblages, particulate organic matter (kerogen), and total organic carbon (TOC) have been made on samples of the Albian–Cenomanian Kharita and Bahariya formations encountered in the Abu Gharadig-5 well, Western Desert, Egypt. Two assemblage palynozones are defined: Assemblage Zone A (Kharita Formation) of late...
The Lower Cretaceous Alam El Bueib and Alamein formations in the Ghazalat‐1 (GTX‐1) well, Western Desert, Egypt, consist of marginal marine siliciclastic sediments, overlain by the Aptian evaporites (dolomite of the upper Alamein Formation). Angiosperm species diversity is reasonably high, and account for 8.0–22.0% of the total palynomorphs. Most o...
Strontium isotope, palynological, and total organic carbon (TOC) analyses were made on core samples from the Izhara, Araej, and Hanifa formations of three wells in onshore Qatar. Eleven samples were analyzed for their 87Sr/86Sr ratios. The results gave a chronostratigraphic range of Early Jurassic (Hettangian) to Late Jurassic (Oxfordian), with an...
Cyst assemblages (184 species) belonging to 68 genera) recovered from the Jurassic to Lower Cretaceous strata of three deep wells (Abu Hammad-1, Kabrit-1 and Q-71 -IX) located in the northern part of the Eastern Desert, Egypt, allow to recognize twelve informal biozones ranging from the Albian to the Toarcian or Aalenian. These biozones are correla...
Thirteen shallow boreholes were drilled by the Qattara Project Authority (QPA) on the top of the second limestone ridge in the El-Dabaa area, along the Mediterranean coast, northwest Egypt. Five foraminiferal biozones could be recognized in ascending stratigraphic order: the Heterostegina costata, Praeorbulina sicana, Borelis melo melo, Globigerino...
The Miocene carbonate Dam Formation is well exposed in the Jebel Al-Nakhash area of southern Qatar. Three sections were measured in a detailed investigation of the Formation’s stratigraphy, micropaleontology, and paleoecology. This biostratigraphic and paleoecologic study was supported by the analysis of microlithofacies and foraminiferal assemblag...
Well-preserved miospore assemblages are described from three deep exploration wells in the northern part of the Eastern Desert, Egypt. The composite succession in the three boreholes investigated comprises eight formations assigned to the Jurassic-Lower Cretaceous. The Jurassic/Cretaceous boundary in the subsurface of the studied area is unconforma...
A palynological investigation of the Nahr Umr, Mauddud and Ahmadi formations of the middle Cretaceous Wasia Group in Well DK-B in the Dukhan oil field of Qatar, yielded 30 species of dinoflagellate cysts, 18 of pteridophytic spores, 14 of gymnosperm pollen, and 16 of angiosperm pollen. Based on the investigation, the age of the Nahr Umr Formation i...
Latest Cenomanian to earliest Turonian sediments, basal part of the Abu Roash Formation (G and F members) in the Khalda-21 borehole, north Western Desert, Egypt, contain a non-diversified assemblage of agglutinated foraminifera consisting of 20 species belonging to 11 genera among which Ammobaculites, Ammobaculoides, Bulbobaculites and Haplophragmo...
Surface and subsurface Cretaceous sediments in the Ain El-Wadi area, NNE Farafra Oasis have yielded diverse assemblages of palynofloras and foraminifera. The succesion is composed of siliciclastic sediments of the El-Hefhuf Formation which are unconformably overlain by carbonates of the Khoman Formation. Terrestrial palynomorphs are the predominant...
Diverse and well-preserved dinoflagellate cyst, acritarch and miospore assemblages were recovered from the late Callovian to mid-Oxfordian sediments of the Masajid Formation penetrated in the WX1 borehole, El Maghara area, North Sinai, Egypt. The Compositosphaeridium polonicum-Gonyaulacysta jurassica (Cp- Gj) dinoflagellate cyst Assemblage Zone is...
The Jurassic to Lower Cretaceous sequences in the wells Abu Hammad-1, Q-71-IX and Kabrit-1, north Eastern Desert of Egypt, have yielded palynofacies assemblages of varying composition. Seven palynofacies types which are environmentally controlled are identified and the source rock potential is evaluated. Eight formations are paleoecologically studi...
Palynomorphs were studied in nineteen Cretaceous samples obtained from the Ghazalat-1 Well, Qattara Depression, northwestern Egypt. Well-preserved and diverse assemblages comprise at least 125 species of spores, pollen, dinocysts and other phytoplankton. Five new pollen species are described: Droseridites baculatus, Foveomorphomonocolpites rashadi,...
The taxonomy and phylogeny of the Cenomanian to Maastrichtian representatives of the Heterohelicidae (planktic foraminifera) recovered from three wells are discussed. The number of specimens as well as of species increases gradually from the Turonian onward. The early Turonian, the mid-Santonian and the early Maastrichtian are times of rapid specia...
The pollen, spores, dinoflagellates and foraminifers of the Kahraman-1 and Abu Gharadig-18 wells, drilled in the northern part of the Western Desert of Egypt, are assesed and compared with other contemporary microfloras and microfaunas in different sites in and outside Egypt. The palaeogeographical and palaeoenvironmental picture of the Cretaceous...
Detailed descriptions of Kimmeridgian to Late Barremian palynofloras are presented from the Malha-1 well, north Sinai, Egypt. The Jurassic Masajid Formation and the Early Cretaceous Mersa Matruh Shales have yielded about 100 species of miospores and microplankton. Four palynozones are defined, based on the analysis of the stratigraphie distribution...