المنشورات و المؤلفات
Outcrops of the Middle Eocene in northern Egypt represent a Tethyan reef-rimmed carbonate platform with bedded innerplatform facies. The diagenesis of these outcrops was studied in detail. The facies are characterized by a reef core, back reef and...
A Radiolitidae (rudist, bivalvia), Durania cornupastoris (Des Moulins) is a well-known species defined as an index fossil from the Turonian (mostly middle-upper) deposits in the Mediterranean Tethys and also in the USA. This study includes new...
Assessment of metal contamination in coastal sediments of Al-Khobar area, Arabian Gulf, Saudi Arabia
An assessment of marine pollution due to heavy metals was made to coastal sediments collected from Al-Khobar coastline, in the Arabian Gulf, Saudi Arabia by analyzing of Al, V, Cr, Mn, Cu, Zn, Cd, Pb, Hg, Mo, Sr, Se, As, Fe, Co and Ni using...
In order to assess heavy metals pollution along the Al-Khobar coastline, 30 seawater samples and 15 sediment oneswere collected for Al, V, Cr,Mn, Fe, Co,Ni, Cu, Zn, As, Se, Sr,Mo, Cd,Hg and Pb analysis by Inductively Coupled Plasma-Mass Spectrometer...
In order to document the microfacies and diagenesis of the reefal limestone in the uppermost part of the Callovian Tuwaiq Mountain Limestone Formation at Khashm Al-Qaddiyah area, central Saudi Arabia, scleractinian corals and rock samples were...
In order to assess the pollution levels of selected heavy metals, 45 bottom sediment samples were collected from Al-Kharrar lagoon in central western Saudi Arabia. The concentrations of the heavy metals were recorded using inductively coupled plasma...
The Upper Cretaceous Aruma Formation in central Saudi Arabia is subdivided into three members. The Khanasir Member at the base is characterized by dasycladecean-rudist
biofacies. The middle Hajajah Member is characterized by coral-stromatoporoid...
Qualitative and quantitative analysis of Thanetian foraminiferal assemblages at Gebel Matulla in westcentral Sinai has been carried out. Three benthic foraminiferal assemblages are recorded from shallowest to deepest as Cibicidoides pseudoacutus,...
In order to assess the distribution of mercury along the Tarut coast, Arabian Gulf, Thirty eight (38)
sediment samples, twenty six (26) seawater samples, and forty (40) Mollusca specimens were collected from the Tarut coast. The concentrations of...
Due to the absence of a national strategic plan for coastal management, the Nile Delta coast is no longer described as a fully dissipative, divergent, low-gradient beach face composed of fine to very fine sand. Instead, new patterns have emerged...
The Campanian Hajajah Limestone Member of the Aruma Formation was formed during two regressive episodes. Each of them formed of three depositional facies, from base to top: 1) intra-shelf basin facies, made up of fossiliferous green shale and...
The shallow-water carbonates of the Middle Eocene in northern Egypt represent a Tethyan reef-rimmed carbonate platform with bedded inner-platform facies. Based on extensive micro- and biofacies documentation, five lithofacies associations were...
Along the Egyptian Red Sea Coast from Abu Darag on the Gulf of Suez southwards to
Berenice, 19 species form the most common invertebrates that inhabit the widely distributed
rocky shore niches. These species belong to Bivalvia, Gastropoda, Bryozoa,...
The transgressive-regressive Miocene succession exposed at gabals Geneife, Homeira
and Gharra in Cairo-Suez District is unconformably underlain and overlain by continental
sediments of Oligocene and post Miocene (?) respectively. It could be...
The transgressive-regressive Miocene succession exposed at gabals Geneife, Homeira
and Gharra in Cairo-Suez District is unconformably underlain and overlain by continental
sediments of Oligocene and post Miocene (?) respectively. It could be...
Sixty-three invertebrate species (19 foraminifers, 4 bryozoans, 20 gastropods and 20
bivalves) from four lagoons along the Red Sea Coast have been identified, illustrated and their
habitat, bio-aM-paleogeographic distribution (if present) were done...
In an attempt to study the reversal application of the uniformitarianism and use of shell
chemistry to emphasize the environmental impacts, chemical analysis of some elements and
oxides for Nerita (Theliostyla) albecil/a, Turbo (Batil/us) radiatus,...
In an attempt to study the reversal application of the uniformitarianism and use of shell
chemistry to emphasize the environmental impacts, chemical analysis of some elements and
oxides for Nerita (Theliostyla) albecil/a, Turbo (Batil/us) radiatus,...
Twenty-eight bryozoan species have been identified for the first time from the Recent coral
reefs and sediments of the southern Safaga bay, Red Sea coast, Egypt. Among the identified
taxa, twenty-six species belong to the order Cheilostomata and the...
Pleistocene coral reefs along the Red Sea coast occur in three
stratigraphically different units. Theyform terraces of different elevations
above the present sea level and are characterized byfringing reef types,
comparable to their recent...
Forty bryozoan species relating to the orders Cyclostomata and Cheilostomata have been
identified from the Middle Miocene Marmarica Formation in Siwa Oasis. They represent the
most abundant bryozoan species in the studied sections. The whole...
Twenty-six bryozan species have been identified from the early Miocene sediments of Gebel Gharra (Gharra
Formation). Among them five species are cyclostomes and twenty-one species are cheilostomes. Three species
are believed to be new: Membranipora...
In order to document the microfacies and diagenesis of the reefal limestone in the uppermost part of the
Callovian Tuwaiq Mountain Limestone Formation at Khashm Al-Qaddiyah area, central Saudi Arabia,
scleractinian corals and rock samples were...
In order to assessmetal contamination on theMediterranean coast of Egypt, 45 sediment samples, seawaters and
bivalve specimens were collected from Rosetta coastal area for Mg, Al, K, Fe, Sr, Zn, Pb, Mn, As, Ce, Ni, Cr and Zr
analyses by Inductively...
Thirty three benthic foraminiferal species belong to 23 genera and 16 families have been
recorded from the coral reefs of the Callovian Tuwaiq Formation, Khashm Al-Qaddiyah area, Central
Saudi Arabia. Three species: Astacolus qaddiyahensis,...
The Tineh Plain NW Sinai coast has been the subjected of several studies related to its stratigraphy, geoarchaeology, and sustainable development. Recently, the name of the Tineh Plain has emerged following the government of Egypt’s decision to...
Bottom sediment samples were collected from
17 locations of the Dammam coast, Dammam city,
Saudi Arabia in April 2014. The concentrations of iron,
chromium, manganese, nickel, zinc, cadmium, lead, and
copper in the bottom sediments were measured by...
This article deals with the Upper Jurassic carbonates of the Jubaila Formation, exposed throughout the
Tuwaiq Mountains, Central Saudi Arabia and discusses the succession of palaeoenvironments resulting
from detailed field and lab work. Based on...
Thirty eight surface sediments samples have been collected in the area around Tarut Island, Saudi Arabian
Gulf to determine the spatial distribution of metals, and to assess the magnitude of pollution. Total concentrations
of Fe, Mn, As, B, Cd, Co,...
In order to assess pollutants and impact of environmental changes along the Saudi Arabian Gulf coast,
forty specimens of gastropod and bivalve shells belonging to Diodora funiculata, Lunella coronata, Cerithium
caeruleum, Barbatia parva, Pinctada...
Disarticulation, encrustation, bioerosion, fragmentation and abrasion are the recorded taphonomic
processes in the intertidal gastropod and bivalve shells from the northern Red Sea coast, Egypt. Balanoids,
polychaetes, bivalves and bryozoans are the...
Paleontology and depositional environments of the Pleistocene coral reefs of the Gulf of Suez, Egypt
This study focuses on the diagenetic sequence under
marine and meteoric conditions as well as isotopes and
trace metals contamination in Quseir and Gebel Zeit areas
along the Egyptian Red Sea coast through a series of modern
and fossil corals,...
26 species belong to 24 genera and 16 families have been described and illustrated from the Callovian
Tuwaiq Mountain Limestone, Khashm Al-Qaddiyah, central Saudi Arabia. 10 of the identified species
belong to scleractinian corals, 7 to brachiopods...
In order to assess pollutants and impact of
environmental changes along the Egyptian Red Sea coast,
seven recent and Pleistocene coral species have been analyzed
for Zn, Pb, Mn, Fe, Cr, Co, Ni, and Cu. Results show
that the concentration of trace...
Eighteen scleractinian coral species belonging to 13 genera, 8 families and 4 suborders have been identified from the lower
and upper parts of the Upper Jurassic (Oxfordian) Hanifa Formation at Jabal Al-Abakkayn, central Saudi Arabia.
Actinastrea...
Thirty samples of gastropod shells belonging to Nerita albicilla and Canarium (Gibberulus) gibbosus from 15
stations along the Egyptian Red Sea coast were selected for chemical analysis. The analysis indicated that
Nerita is a geochemical marker for...
The shallow-water siliciclastics and carbonates of the Miocene sediments in the Cairo–Suez District,
Egypt represent an epiric ramp. The facies are characterized by stacked high-frequency cycles with
restricted ramp to shoal margin sequences. Based...
A regional unconformity at the Danian–Selandian (D/S) boundary is recorded in Western Desert, Egypt,
based upon field study, biostratigraphic analyses and paleoenvironmental parameters. This unconformity
is marked by the absence of the topmost part...
The gastropod fauna of the Upper Cretaceous Aruma Formation in central Saudi Arabia comprises fifteen
species belonging to fifteen genera, fourteen families, and five clades. The species are not abundant at any
individual stratigraphic level but are...
Bryozoan nodules, coralline algae, scleractinian corals and oysters form an important organic
buildup, 1.2–4.5 m thick in the Langhian-Serravaliann sediments of Egypt. Based on type, shape
and size of the substrate, bryozoan nodules take tree-like...
Seventy-five bryozoan species were picked from shallow bottom sediments (0–33m depths) at five sites in the northern Red
Sea: El Fanader, Hurghada Harbour, Makkadi Bay, Al Qweh Lagoon and El-Humrawen. Crisia specimens (Cyclostomata)
are common and...
In order to assess arsenic on the Tarut coast, Saudi Arabian Gulf, 38 sediment samples, 26 seawater
samples and 40 gastropod and bivalve specimens were collected for analyses by Inductively Coupled
Plasma-Mass Spectrometer. The Enrichment Factor (EF...