Mohammed A. Al-Wosabi

Petroleum and Natural Resources Faculty - Sana'a University · Earth Sciences

For the purpose of etablishing a database on benthic foraminifera in Yemen, two hundred and twelve recent benthic foraminifera species have been recorded from 32 sandy samples collected from different localities in Socotra Island during January 2017 and Hadhramout coastline, Yemen during August 2018 from a depth of 0 - 4 m, to identify benthic fora...

Petrography and Digenesis of Siliciclastic Red-bed Sandston - Kuhlan Formation, Northwest Yemen

Surface features of quartz grains on the Al-Haymah and Moushij beaches of the coastal area in the southern Red Sea of Yemen were analyzed by a scanning electron microscope (SEM) to deduce the provenance and depositional environment of sediments. The microtextures on quartz grains were classified into mechanical, chemical, and mechanical/chemical or...

Twenty five samples were collected from the beach sand of Socotra Island. These samples are covered the northern shoreline of the island. They were treated for extracting the foraminiferal content. Eighty Six foraminiferal species have been identified from the collected samples. These species belonging to 52 genera, 22 subfamilies, 35 families, 16...

The development of Holocene-Pleistocene fringing reefs in the Yemeni Red Sea (YRS) is controlled by sediment input and variations in accommodation space. Lithostratigraphic correlation of environmental facies in the investigated sites is showing a sequence of successive events, and each can be subdivided into 2 or 3 main sequences. The upper sequen...

The charophyte flora from Socotra Island, Indian Ocean, studied for the first time from streams waterbodies that distributed at the northern part of the Island. The recognized charophyte taxa were taxonomically investigated, and four dominant species belonging to family Characeae are identified as Chara braunii, C. globularis, C. hispida and Lampro...

Hadhramout is considered as the industrial and commercial center for fishing in Yemen. Accordingly, Yemen food security depends highly on maritime products of Hadhramout. Consequently, any severe contamination caused by industrial activities would have a direct or an indirect negative impact on the sea life and marine environment. Twenty Mollusca s...

Abstract: One hundred and eleven benthic foraminiferal species belonging to 36 genera, 25 families, 16 superfamilies and 4 suborders were identified from twenty samples collected from Bir Ali beach on the Yemeni Arabian Sea coastline. The benthic foraminifera assemblages were dominated by species belonging to Miliolina suborder with 71 species a...

Data were collected from five sites at Hadhramout, Yemen ,on seasonal basis from August 2013- May 2014; where the physical and chemical properties of seawater were measured. It was found that the physical and chemical properties of seawater have significant seasonal variations within the coast with values ranging from 7.9-8.8, 24.3 ºC -31.4 ºC, 51....

Hadhramout is considered as the industrial and commercial center for fishing in Yemen. Accordingly, Yemen food security depends highly on maritime products of Hadhramout. Consequently, any severe contamination caused by industrial activities would have direct or indirect negative impact on the sea life and marine environment. Seawater samples were...

Two sections of strata assigned to the Amran Group at Jabal Salab and Jabal Yam in the eastern Sana’a governorate were sampled and correlated. These sections are part of a carbonate platform that extends from the city of Marib in the east to Naqil Ibn Ghailan, 20 km east of the city of Sana’a to the west. Palaeontological analysis of samples recove...

Hadhramout is considered as the industrial and commercial center for fishing in Yemen. Accordingly, Yemen food security depends highly on maritime products of Hadhramout. Consequently, any severe contamination caused by industrial activities would have direct or indirect negative impact on the sea life and marine environment. Sediments samples were...

Seawater and sediment samples were collected from five locations (Burum, Al Mukalla, Al Shaher, Ras Sharma and Arryidah) in coastal of Hadraomut, Yemen on seasonally basis from August 2013-May 2014 for an investigation of concentrations of heavy metals [nickel (Ni), cobalt (Co), manganese (Mn),cadmium (Cd), iron (Fe), copper (Cu), zinc (Zn), chromi...

Africa and the Middle East consist of a rich geodiversity, which is regrettably not well known by the public. This is due partly to limited research and studies undertaken in geoheritage and geoconservation in these parts of world, especially those with the intent to explore, inventory and valorize such inherent geodiversity. With the aim to improv...

The Arhab area in Yemen possesses a cultural and natural heritage that needs to be enhanced and protected. Dinosaur footprints represent the most important geological heritage features in the region and in the Arabian Peninsula. They are distributed within an area of 200 km2. The Arhab area possesses all the requirements to be a geopark; these incl...

During the Cenozoic, the Arabian Plate separated from continental Africa and assumed a closer geographical relationship with Eurasia. As such, the vertebrate fossil record of the Arabian Peninsula has great potential for documenting faunal interchanges that occurred as a result of such tectonic events, with a shift from a primarily Afro-Arabian fau...

A large bipedal tridactyl dinosaur trackway from the Late Jurassic of Serwah, near Madar, Arhab district, Republic of Yemen, has been attributed to an ornithopod trackmaker. As the distinction between theropod and ornithopod dinosaurs can pose a challenge, we present additional data to support and reconfirm the previous attribution.

Forty-seven species belonging to 30 genera of ostracods have been identified from Recent shallow marine sediments collected along the northern coastline of the island of Socotra (Indian Ocean). The systematics and distribution of these ostracods are discussed. Three genera, Loxoconcha, Bosasella, and Xestoleberis are found to have high species dive...

The lithostratigraphic subdivision of the Kuhlan Formation in Yemen is reviewed based on the previous literature and new examination of five widely spaced outcrops in the Kuhlan Affar, Jabal Maswar, Jabal Salab, Wadi Hajar, and Ras Falanj areas. Following the guidelines set by the North American Commission on Stratigraphic Nomenclature, Kuhlan Form...

Abundance and species composition of non-marine benthic diatom assemblages were studied from surface sediments samples of 11 streams distributed in Socotra Island, located in the northwest Indian Ocean. A total of 145 diatom species, representing 44 genera, were identified. The overall diatom communities appear to be the first recorded off the isla...

The measured ranges of 60 benthic foraminiferal species of Umm er Radhuma Formation (UeR) (Paleocene–Early Eocene age) in five wells of Rub’ Al-Khali Basin, Saudi Arabia, and two surface sections (Wadi Mashib and Say’un), from Yemen, have been assembled by a graphic correlation technique into a composite standard section (CSS). This composite stand...

The evolutionary history of Mesozoic terrestrial vertebrates from the Arabian Peninsula is virtually unknown. Despite vast exposures of rocky outcrops, only a handful of fossils have yet been described from the region. Here we report a multi-taxon dinosaur track assemblage near Madar village, 47 km north of Sana'a, Republic of Yemen. This represent...

Varieties of thirteen facies types were recognized in the Kuhlan Formation represented by red bed siliciclastic sequences of argillaceous sediments. Examination of the Kuhlan stratigraphic column included sequence relationships, lithology, sedimentary characters, structures and petrography of the dominant rock types. These facies types are grouped...

A b s t r a c t Monitoring of recent crustal deformation was carried out using GPS obser-vations to detect the present-day styles and rates of extension, as well as rift-margin deformation along the extent of the Red Sea rift. For studying the crustal deformation along the Red Sea Region and Gulf of Aden, 12 geodetic stations were established to co...