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norskBlar i forfatter Artikler, rapporter og annet (UB) "Abu-Alam, Tamer"
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Age and hafnium isotope evolution of Sudanese Butana and Chad illuminates the Stenian to Ediacaran evolution of the south and east Sahara
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-22)The Saharan Metacraton is a poorly known tract of pre-Neoproterozoic continental crust that occupies the area between the juvenile Arabian Nubian Shield, in the east, and the Tuareg Shield to the west. Neoproterozoic orogenesis (i.e. Oubanguides and East African orogenies) affect the west, the south and the east of the metacraton, respectively, which led to deformation, emplacement of igneous bodies, ... -
Archiving and collecting Arctic datasets: Open Arctic Research Index
(Conference object; Konferansebidrag, 2019-06)The number of digital repositories containing publications and datasets on the Arctic region are increasing enormously. Users want relevant information according to their query with minimum interval of time. Scholars are compelled to search the individual repositories to get their desired documents. Open Arctic Research Index (Open ARI), a planned service at UiT - The Arctic University of Norway, ... -
Characterization and Productivity of Alluvial Aquifers in Sustainability Oasis Areas: A Case Study of the Tata Watershed (Southeast Morocco)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-04-27)Groundwater from alluvial aquifers is a critical source of water supply for rural agriculture, particularly in semi-arid and arid regions. Effective management of these aquifers requires an understanding of the factors that influence their water resources. In this study, we present a case study of the Tata watershed in southeastern Morocco, where the economy is heavily dependent on agriculture and ... -
A continent-wide detailed geological map dataset of Antarctica
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-18)A dataset to describe exposed bedrock and surficial geology of Antarctica has been constructed by the GeoMAP Action Group of the Scientific Committee on Antarctic Research (SCAR) and GNS Science. Our group captured existing geological map data into a geographic information system (GIS), refined its spatial reliability, harmonised classification, and improved representation of glacial sequences and ... -
Contribution of Gravity Data for Structural Characterization of the Ifni Inlier, Western Anti-Atlas, Morocco: Hydrogeological Implications
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-13)The Sidi Ifni region in southwest Morocco is mainly composed of crystalline rocks with limited groundwater storage capacity. These water resources drain in particular fault zones with high fracture permeability. The main objective of this study is to describe the geological structure of the region to optimize future drilling locations. The gravity data were processed using various techniques, ... -
Open Polar – a global open access portal to research on the polar regions
(Conference object; Konferansebidrag, 2021-11)Research activities and research output, in general, have increased, and keep increasing vastly, and so too is research on the polar regions including Svalbard in the Arctic. Major commercial publishers have built subscription-based services which present research literature for a fee. As Open Science and open access to literature and data is gaining momentum, there is a distinct need for powerful ... -
Origin of arc magmatic signature: A temperature-dependent process for trace element (re)-mobilization in subduction zones
(Journal article; Tidsskriftartikkel; Peer reviewed, 2019-05-08)Serpentinite is a major carrier of fluid-mobile elements in subduction zones, which influences the geochemical signature of arc magmatism (e.g. high abundances of Li, Ba, Sr, B, As, Mo and Pb). Based on results from Neoproterozoic serpentinites in the Arabian-Nubian Shield, we herein report the role of antigorite in the transportation of fluid-mobile elements (FME) and light rare earth elements ... -
Oxygen and hydrogen stable isotopes as recharge indicators, Central Nile Delta Quaternary aquifer, Egypt
(Journal article; Tidsskriftartikkel; Peer reviewed, 2022-01-19)This work aims to utilize oxygen and hydrogen stable isotopes as tracers for determining the groundwater sources of recharge in the central Nile delta. The analyzed water samples were collected from canals and drains as surface water, soil water and shallow, intermediate and deep zones of the groundwater. The isotopic data indicated that surface water samples have higher isotopic content than recent ... -
Pollution Vulnerability of the Ghiss Nekkor Alluvial Aquifer in Al-Hoceima (Morocco), Using GIS-Based DRASTIC Model
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-12)Groundwater resources of the alluvial aquifer Ghiss Nekkor, which covers an area of 100 km2, are the main source of domestic and agricultural freshwater supply in the region of Al Hoceima in Morocco. Due to human activities (overexploitation, increase in agricultural activity), this alluvial aquifer has become very sensitive to chemical pollution. The principal objective of this current study is to ... -
Prolonged high-grade metamorphism of supracrustal gneisses from Muhlig-Hofmannfjella, central Dronning Maud Land (East Antarctica)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-01-09)The bedrock of Mühlig-Hofmannfjella, central Dronning Maud Land in eastern Antarctica, is part of the high-grade Maud Belt and comprises a deep-seated metamorphic-plutonic complex. The P-T-t evolution of anatectic supracrustal gneisses has been recovered through a study of mineral assemblages, textural relationships and U-Pb ID TIMS geochronology on zircon and monazite followed by pseudosection ...
