Ikhlas Alhejoj

University of Jordan | UJ · Department of Geology

This book on macro-faunal and macro-floral species as bio-indicators of water quality in Jordan stems from the need to monitor and control the environmental situation in Jordan’s surface water resources. It is thought to serve as reference basis of information to compare with it any future quality changes in the composition of surface water bodies...

This book study the main deformation structures in the upper Cretaceous rocks of Jordan (Joints,Stylolites, Slickenside) and deformed fossil.

In this article, the quality of running and standing water in Jordan is evaluated using mayflies (order Ephemeroptera) as biological indicators species. From March 2011 to April 2013, mayfly larvae were collected, from the study area that covers streams pouring into the Jordan Valley and the Dead Sea. Six species were determined and distinguished f...

This study of the deformation of fossils due to tectonic activities is the first study to be carried out in Jordan. Deformed fossils were found in a variety of locations such as Ajlun (Shtafina), Umm Dananier, Wadi Mujib and Jabal Waqf as Suwwan areas. The different stress fields that produced folding, stylolization and reverse flexuring, are belie...

The Jordan Valley south of Lake Tiberias has post Messinian deposits with saline character succeeded by fresh water deposits. These were deformed by further vertical and horizontal movements in the Jordan Valley Rift. Those encompassing the Al Qarn Formation after deformation came to lie next to sands and gravels of an ancient Jordan River and wer...

Jordan can be considered to be an outdoor natural geological museum, exhibiting rocks of the Precambrian age up to the present Holocene time. Within its rocks are imprinted fossils, recrystallized minerals, geological structures, ancient human remains, and other geological features, which contribute to our understanding of global geology. This book...

Microcystis blooms and the related toxin known as microcystin-LR (MC-LR) put the safety of human water consumption and global irrigation practices in jeopardy. MC-LR is widely distributed in various environments, including water, sediments, plants, and other aquatic organisms. The use of water-containing microcystins for agricultural purposes may h...

The Ypresian/Lutetian boundary duration calcareous nannofossil biostratigraphy and bioevents from three sections, two from Sinai, Egypt (Wadi Ferian and El Mishatii; west-central and north-east Sinai, respectively) and one from Jordan (Outherite), are presented for the first time. Fifty-three calcareous nannofossil species are identified from 86 sa...

Microcystis blooms and the related toxin known as microcystin-LR (MC-LR) put the safety of human water consumption and global irrigation practices in jeopardy. MC-LR is widely distributed in various environments, including water, sediments, plants, and other aquatic organisms. The use of water-containing microcystins for agricultural purposes may h...

In this article, aquatic mayflies from several wadis in Jordan are studied on their potential use as environmental indicators. Nine species of mayfly were observed in the studied wadis, encompassing Baetis monnerati, Cheleocloeon soldani, Cloeon vanharteni, Cloeon gr simile, Baetis pacis, Nigrobaetis vuatazi, Choroterpes ortali, Caenis antoniae, an...

Ductile and brittle meso-deformational structures are quite common in Jordan's rock formations. A detailed interpretation of such structures provides valuable information about their possible mechanism of formation and their tectonic style which is mostly related to the dominant tectonic regime that has influenced the entire region. These structure...

This article briefly outlines the geology of aquatic deposits in the Ma‘an desert, which consist of semi-consolidated gypsum layers intercalated by semi-consolidated sandstones, siltstones and mudstones with stromatolitic structures. They were deposited in a periodic river, called the Tawil River, and after that in a pond environment. The Tawil Riv...

the original version with pages

We here treat four unreported or poorly known mayfly species from Jordan: Cheleocloeon soldani Gattolliat & Sar-tori, 2008, Cloeon vanharteni Gattolliat & Sartori, 2008, Baetis pacis Yanai & Gattolliat, 2018, and Caenis macruraStephens, 1835. They are reported and morphologically distinguished from other local relatives. Caenis macrura is widely di...

The qualitative and quantitative analyses of the foraminiferal assemblages from the upper Maastrichtian -middle Eocene succession at Jabal Ghuzayma section (central Jordan) is utilized to evaluate the biostratigraphic framework and the prevailing paleoenvironments. Nine planktonic biozones (CF3, P4c, P5, and E3-E8) were recognized covering the uppe...

Two gastropod genera of Heterostropha and Architectibranchis were recorded from the Campanian Amman Silicified Limestone Formation. Representatives of these two gastropod genera are still living until now in the reef environment of the Gulf of Aqaba, and can be found near the Marine Biological Station of Jordan. An analytical comparison between the...

In the current work, a variety of deformational mesostructures (tectonic and nontectonic) in the Upper Cretaceous rocks of Jordan are described and attempts have been made to explain their textures, formation and the mechanisms of development. The structures include: undulations, brecciated chert, slickensides, nodules of limestone, deformed fossil...

In the current work a variety of deformational mesostructures (tectonic and nontectonic)in the Upper Cretaceous rocks of Jordan are described and attempts have been made to explain their textures, formation and the mechanisms of development. The structures include: undulations, brecciated chert, slickensides, nodules of limestone, deformed fossils,...

A Pleistocene travertine quarrying on a hill in Siwaqa area, central Jordan, excavated solid, well-stratified travertine beds of about 12 m in thickness. The fabric and composition of the travertine indicate original deposition from hot spring water. At present, the area and its surrounding are devoid of any perennial water, except for periodic flo...

The identified mollusks from the Burullus lagoon of Egypt (Eastern Mediterranean) are represented by four bivalve species and four gastropod species. Sources of heavy metals pollution in the Burullus lagoon include phosphate fertilizers, sewage and oil spills from fishing boats. The Cerastoderma glaucum species has a wide distribution in the centra...

The hydrologic system in Jordan began its evolution with the regression of the Tethys during the Eocene and the rifting of Arabia from Africa. From that time onward Jordan lay on land. The rivers from Jordan and the Sirhan east of it flew into the Rift. On the Jordan land volcanism developed and was on and off active until sub-recent times. Flows o...

Mollusks living in surface water in Jordan can be used as indicators of water quality. They are predominantly represented by gastropods and only locally by bivalves. Within this framework, gastropod species of the genera Theodoxus, Melanopsis, Melanoides, Physa, Bulinus, Galba, Hydrobia, Ovatella, Falsipyrgula, Prosostenia, Pseudamnicola proved to...

The reconstruction of the geological history of the Jordan Valley is based on interpreting its sediments and fossils reflecting the presense of sea bay at Late Oligocene up to the formation of the present salty Dead Sea during theHolocene. The Late Tethys – Early Mediterranean Sea had entered the northern Rift valley during the early stage of its f...

In the current work, a variety of deformational mesostructures (tectonic and nontectonic) in the Upper Cretaceous rocks of Jordan are described and attempts have been made to explain their textures, formation and the mechanisms of development. The structures include: undulations, brecciated chert, slickensides, nodules of limestone, deformed fossil...

In this study, the qualities of surface water bodies feeding the lower Jordan River from its eastern side were studied and found reflected in the types of aquatic species of macrofauna surviving in them. Water, especially, in semi-arid countries such as Jordan with unpredictable seasonal rainfall are subjected to scarcity of water due to increasing...

Mollusks living in surface water in Jordan can be used as indicators of water quality. They are predominantly represented by gastropods and only locally by bivalves. Within this framework, gastropod species of the genera Theodoxus, Melanopsis, Melanoides, Physa, Bulinus, Galba, Hydrobia, Ovatella, Falsipyrgula, Prosostenia, Pseudamnicola proved to...

The effect of implementing service learning as a pedagogical tool in teaching and learning strategy has been intensively explored in higher education context. This study focus on testing the impact of utilizing “service learning” on students’ academic and personal outcomes into three courses at the Hashemite University and Jordan University. Studen...

In the southern part of the eastern Jordanian coast of Aqaba Gulf at least three raised fossil reefs were mapped. These fossil reefs were deposited on alluvial fan deposits and are laterally connected with clastic shore sediments simultaneously deposited with their corresponding reef. The highest mapped fossil reef lies at an elevation of about 75...

Abstract Among small sized gastropods found in Aqaba (Jordan), Sansonia occurs relatively common with Sansonia cebuana which is recognized from the the fringing reef near the Marine Biological Station at Aqaba, while Mecoliotia and Chrystella are rare. Mecoliotia aqabaensis n. sp and Chrystella shinaqi n. sp are described with the later resembling...

The aim of the present research is to study the occurrence of aquatic organisms in running surface water springs, creeks, rivers and stream. Water covers extending from the Zerqa River in the North to Mujib River in the South were sampled for animals and plants alongside, the quality of the water is characterized, regarding its temperature, conduct...

Many different species of the aquatic fauna and flora found in Jordan were encountered which can be utilized in characterizing the quality of the water. Animals and plants in springs, creeks/rivers and ponds were studied as indicators of water quality. The aquatic biota (fauna and flora) can be used effectively as bioindicators of water health (Ros...

In this study the occurrence and ecology of plant assemblages are investigated, mainly for use as indicator plants of saline grounds in several locations in Jordan. High alkalinity and H2S-rich water tolerant species of plants are also discussed. Plants growing on salty grounds have distinct composition regarding their place in the taxonomic system...

Groundwater vulnerability is an overlay method that is used to determine the ability of pollutants to penetrate to the target aquifer and to harm it. This method helps decision makers by shedding light on pollution areas expected to pollute groundwater aquifers as caused by human activities on the ground surface. In Jordan, groundwater is the main...

http://www.iwrm-smart2.org/Deliverables/D%20501_Water%20resources%20pollution%20from%20urban%20areas%20in%20the%20LJV.pdf

Deposits of Pliocene- Pleistocene age from different parts of Jordan were studied. Those stemming from lakes, creeks and rivers in the Jordan Valley contain fossils which are predominantly those of molluscs and ostracods, rarely of crabs. Those of saline lakes also include diatoms. Corals form a dominant part of the fossil reefs near Aqaba sediment...