Hamdalla Abdel-Gawad Abdel-Aziz Wanas

Scopus Publications

Paleo-weathering and paleoclimate of the Miocene syn-rift sandstones in the Midyan Basin, NW Saudi Arabia: Petrographic and geochemical constrains
Madyan A. Yahya, Hamdalla A. Wanas, Faisal A. Alqahtani, Amara Masrouhi, Murad R. Abdulfarraj
Geosystems and Geoenvironment, 2026
• Syn-rift Oligo-Miocene sandstone, NW Saudi Arabia. • The sandstones were derived from felsic igneous sources. • An active continental margin and island arc tectonic setting. • Week to moderate chemical weathering. • Semi-arid to semi-humid climate. This study aims to investigate the provenance, tectonic setting, paleo-weathering, and paleoclimate of sandstones of the syn-rift Oligocene?-Middle-Miocene Sharik and Nutaysh formations in the Midyan Basin, located in the northwestern portion of Saudi Arabia. This has been achieved by a multidisciplinary approach combining fieldwork, petrographic analysis, and bulk-rock geochemistry (major, trace and rare earth elements) of sandstones of the Sharik and Nutaysh formations. Integrated petrographic and geochemical data indicate that the studied sandstones are predominantly of sublithic and subarkose arenites. These sandstones were mainly derived from felsic plutonic igneous (mainly granite) and volcanic (mainly andesite and rhyolite tuff) rocks, with a lesser contribution from recycled sedimentary (mainly sandstone, mudrock and chert) and metamorphic (mainly gneiss) sources. These source rocks are typical of a craton interior with notable input from transitional continental and quartzose recycled orogenic tectonic provenance. They were belonged to the nearby Neoproterozoic basement rocks located in the northwest of the study area, as indicated by paleocurrent direction. These source rocks were tecttonically linked to an active continental margin to a continental island arc. These tectonic settings were subsequently influenced by rifting, as evidenced by discrimination function diagrams based on the high-and low-silica sandstone samples. In terms of paleoweathering and paleoclimate,the studied sandstones experienced a week to moderate chemical weathering under semi-arid to semi-humid climatic condition (low to moderate rainfall ranges from 250 to 1000 mm per year). With respect to tectono-sedimentary evolution, the alluvial sandstones of the Sharik Formation were deposited during the initial stages of continental extension and gradual subsidence linked to the early syn-rift phase in the Oligocene?-Early Miocene. The deposition of the deep-sea sandstones of the Nutaysh Formation were deposited during a period of accelerated subsidence in the Early-Middle Miocene, corresponding to the rift climax. Findings of the present study is consistent with the Oligo-Miocene broader tectono-sedimentary evolution of the region.
Provenance, tectonic setting, paleo-weathering and paleoclimate of the Cambrian–Middle Ordovician sandstones from the Tayma region, Tabuk Basin, NW Saudi Arabia (North Gondwana): Petrographic and geochemical evidence
Sultan A. Almalki, Hamdalla A. Wanas, Faisal Alqahtani
Journal of African Earth Sciences, 2026
In the Tayma region of northwest Saudi Arabia, the Cambro-Ordovician rock units are gaining growing attention for hydrocarbon and groundwater exploration. Nevertheless, their petrographic and geochemical characteristics have not yet been examined. Accordingly, this study aims to reconstruct the provenance of Cambrian-Middle Ordovician sandstones in the Tayma region, northwestern Saudi Arabia, along with the tectonic setting, paleo-weathering, and paleoclimatic conditions of the source area. This is achieved by the integration of both petrographic and geochemical data (major, trace, and rare-earth elements) of the studied sandstones. The sandstones are collected from the stratigraphic successions comprising the Saq Formation (the Risha and Sajir members, in particular) and the middle member of the Qassim Formation (the Kahfah member). Petrographic analysis reveals that the sandstones consist predominantly of quartz arenite, with subordinate sub-arkose arenite and micaceous quartz wacke. The integration of both petrographic and geochemical data indicates that detritus of the studied sandstones was primarily sourced from Neoproterozoic felsic igneous rocks (mainly granites) with a minor contribution from metamorphic source (mainly gneiss). These source rocks were developed in the interior of a craton, situated within a broad passive continental margin, and were intensely weathered due to prevailing warm and humid conditions. Deposition occurred in intra-cratonic basins after the Arabian-Nubian Shield (craton) stabilized following the Neoproterozoic Pan-African Orogeny, which culminated in the assembly of Gondwana. In terms of a regional perspective, findings of this study support earlier research suggesting that, during the Cambro-Ordovician period, North Africa and Arabia formed a broad, tectonically stable continental shelf along the northern margin of the Gondwana supercontinent, adjacent to the Proto-Tethys Ocean.
Depositional facies, sequence stratigraphy and diagenesis of the Cambrian-Middle Ordovician siliciclastic outcrops, Tayma Region, NW Saudi Arabia: An integrated approach for reservoir characterization
Sultan A. Almalki, Hamdalla A. Wanas, Faisal Alqahtani, Murad R. Abdulfarraj
Sedimentary Geology, 2025
This study explores how integrating depositional facies, sequence stratigraphy, and diagenetic attributes from outcropped siliciclastic rocks can enhance the characterization of reservoirs in a siliciclastic system. The Cambrian–Middle Ordovician siliciclastic outcrops in the Tayma region of northwestern Saudi Arabia are used as a case study to address this integrative approach. This represents the first integrated study of its kind for the Tayma region. The rationale for this choice is addressed herein. This work has been achieved through detailed field observations accompanied by petrographic, X-ray diffraction, and petrophysical analyses. The studied stratigraphic successions comprise the Saq Formation (the Risha and Sajir members) and the lower members of the Qassim Formation (the Hanadir and Kahfah members). Based on field observation, sixteen lithofacies were identified and grouped into six facies associations. These lithofacies and their related facies associations reflect deposition in braided fluvial, tidally influenced fluvial (upper estuarine), foreshore-upper shoreface, lower shoreface, lower shoreface-offshore transition, and offshore environments. The stacking pattern of the inferred facies and their facies associations led to the subdivision of the studied successions into three superimposed depositional sequences, including highstand-, lowstand-, and transgressive-systems tracts. Petrographic analyses indicate that the studied sandstones are primarily quartz arenites, subarkose arenites, and quartz wackes. These sandstones contain detrital components with different grain textures ranging from poorly to well sorted, subrounded to rounded, and fine- to coarse-grained. The sandstones underwent both shallow and deep burial diagenesis, including compaction, carbonate and iron cementation, clay authigenesis (kaolinite, dickite, and illite), quartz overgrowth, and dissolution of unstable feldspar and mica grains. The integration of the above findings reveals that fluvial-related sandstones linked to lowstand systems tracts (LSTs), along with diagenetic features such as dissolution, mechanical compaction and partial overgrowths) display characteristic features of superior reservoir quality. In contrast, marine-related sandstones (foreshore-shoreface–offshore transition and offshore/shelf environments), typically linked to transgressive (TSTs) and highstand systems tracts (HSTs), along with diagenetic features such as cementation, illite-smectite authigenesis, and complete silica overgrowths exhibit relatively lower reservoir quality at various scales. The reasons behind these findings are discussed herein. In this context, the offshore facies of the Hanadir Shale, which are part of the transgressive systems tract (TSTs), can be recognized as potential source rocks. As a result, this study highlights that reservoir quality in siliciclastic systems is primarily controlled by depositional facies, sequence stratigraphic context, and diagenetic processes. Additionally, this outcrop-based case study provides a valuable analog for characterization of similar subsurface reservoirs elsewhere, especially in areas where core and well log data are limited or uncertain.
The Middle-Upper Eocene in the Northern Plateau of the Bahariya Depression, Western Desert (Egypt) and correlation with other Tethyan sectors
Ehab M. Assal, Hamdalla A. Wanas, Heba A. Abou Awad
Marine and Petroleum Geology, 2024
Petrography and geochemistry of sandstones of the Ash Shumaysi Formation in the Jeddah-Makkah region, Saudi Arabia: Implications for provenance, tectonic setting, paleoweathering, paleoclimate and paleogeography
Murad R. Abdulfarraj, Faisal A. Alqahtani, Hamdalla A. Wanas
Sedimentary Geology, 2024
This study aims to evaluate the provenance of sandstones of the Ash Shumaysi Formation (Early Eocene to Oligo-Miocene) exposed in the Jeddah-Makkah region (an intra-continental cratonic region in the west of the central part of the Arabian Shield), in addition to re-establish the tectonic setting, paleoclimate and paleo-weathering of their source rocks. This aim has been achieved by petrographic investigation and geochemical elemental (major, trace and rare earth elements) analysis of the sandstones. Integration of both petrographic and geochemical data reflects a derivation of the sandstones from intensively-weathered and multi-recycled felsic igneous (granites) rocks, with a minor contribution of intermediate (granodiorite), mafic igneous (andesite), metamorphic and recycled sedimentary rocks, which correspond to the Precambrian rock units of the west of central part of the Arabian Shield. The latter was developed under semi-humid climatic conditions in the source area. Tectonically, the source rocks are of a cratonic interior in a passive continental margin of the Upper Continental Crust. This passive continental margin was later affected by rifting as revealed from the discrimination function diagrams of high-silica samples of sandstones. In general, the Ash Shumaysi sandstones may represent erosional products of the nearby high-topographic crystalline rocks of the Western Arabian Shield that were located in a tectonically stable passive margin subjected to a subsequent continental rift. Results of this study could add to the knowledge about paleoweathering, paleoclimate and tectonic setting in the Arabian Shield that is a part of the southern margin of the broad stable continental shelf of the northern margin of the Gondwana supercontinent.
Depositional architecture and sequence stratigraphic framework of the fluvio-lacustrine Ash Shumaysi Formation, Jeddah-Makkah Region, Saudi Arabia: Implications for climatic and tectonic changes in a local-scale sub-basin
Faisal A. Alqahtani, Murad R. Abdulfarraj, Hamdalla A. Wanas
Depositional Record, 2023
This study aims to interpret and document the depositional architecture styles and sequence stratigraphic framework of the Ash Shumaysi Formation in the Jeddah‐Makkah region, the west‐central part of Saudi Arabia, and presents an example of rarely discussed, local‐scale sub‐basins (half grabens). It also shows the relationships between synchronous sedimentary processes and pre, syn and post‐rift conditions. The described lithofacies and their facies associations indicate the presence of seven architectural depositional styles: proximal‐distal braided fluvial, meandering fluvial (point bar), crevasse splay, floodplain, estuarine and lacustrine. A proposed depositional model for the Ash Shumaysi Formation is drawn. The Ash Shumaysi Formation forms a second order depositional sequence, which is organised into two third order depositional sequences (sequences I and II) bounded by three sequence boundaries. Each third‐order sequence encloses the low accommodation systems tract and high accommodation systems tract. The low accommodation systems tract represents the coarse‐grained, braided‐distal fluvial facies developed during low accommodation space associated with high sediment supply (high discharge). The high accommodation systems tract encloses the fine‐grained deposits of point bar, estuarine and lacustrine facies that reflect the creation of significant accommodation space and low sediment supply (low discharge). Vertical and lateral variations of the inferred depositional architectural styles, sequences and systems tracts reflect that tectonic forces and climate are the main controlling factors during deposition of the Ash Shumaysi Formation, although base‐level changes in response to sea‐level changes cannot be ruled out.
Distal fluvial to lacustrine/palustrine carbonate facies of the El-Ris Formation (Late Miocene?) at the Bahariya Depression, Western Desert, Egypt: Depositional model and controls
H.A. Wanas, I. Armenteros, C. Recio, E.S. Sallam, C.E. Nieto
Journal of African Earth Sciences, 2023
Geoheritage meaning of past humidity in the central Western Desert of Egypt
Fatma A. Mousa, Mohamed M. Abu El-Hassan, Hamdalla A. Wanas, Emad S. Sallam, Vladimir A. Ermolaev, Dmitry A. Ruban
International Journal of Geoheritage and Parks, 2023
The central part of the Western Desert of Egypt, where the Bahariya and Farafra oases are situated, possesses many notable geological features. However, to date the related geoheritage information remains incomplete. Field investigation has permitted the characterization of ten localities representing Quaternary environments, which were rather humid and, thus, differed from the present hyper-arid conditions. Lacustrine-palustrine calcretes and dolocretes, lake (playa) deposits, fluvial tufa and travertines, speleothems (cavern deposits), and aeolian nebkha facies are among the features of these localities. Tentatively, a geosite with a new form is proposed for the studied entity of the localities, namely a serial geosite; this term signifies geosites embracing localities representing the same geological phenomenon, but scattered in the study area. The managerial implications of this study are recommendations for careful planning based on the geosite descriptions.
The Middle-Upper Eocene benthic foraminifera from north-west Fayoum area, Egypt: Paleoecology and their similarity to the Tethyan provinces
Sherif M. El Baz, Hamdalla A. Wanas, Heba Allah Abou Awad, Ehab M. Assal
Journal of African Earth Sciences, 2023
Plio-Pleistocene continental carbonates and silcretes in Wadi El-Natrun, NW Egypt: Their morphology and paleoenvironmental significance
H.A. Wanas, L.H. Tanner, M.M. Khalifa, F.A. Mousa
Journal of African Earth Sciences, 2023
Biostratigraphy, palaeoecology, and palaeobiogeography of the Middle–Late Eocene ostracods, north-west Fayoum area, Egypt
Sherif M. El Baz, H.A. Wanas, Heba Allah Abou Awad, Ehab M. Assal
Geological Journal, 2022
Mineralogical and geochemical studies of copper mineralization in the Paleozoic sedimentary section in southwestern Sinai, Egypt
A.M. Afify, R.A. Osman, H.A. Wanas, T.M. Khater
Ore Geology Reviews, 2022
Erratum to “Reservoir quality and rock type zonation for the Sidri and Feiran members of the Belayim Formation, in Belayim Land Oil Field, Gulf of Suez, Egypt” [J. Afr. Earth Sci. 181 (2021) 104242] (Journal of African Earth Sciences (2021) 181, (S1464343X21001436), (10.1016/j.jafrearsci.2021.104242))
Abeer A. Abuhagaza, Mohamed A. Kassab, Hamdalla A. Wanas, Mostafa A. Teama
Journal of African Earth Sciences, 2022
Reservoir quality and rock type zonation for the Sidri and Feiran members of the Belayim Formation, in Belayim Land Oil Field, Gulf of Suez, Egypt
Abeer A. Abuhagaza, Mohamed A. Kassab, Hamdalla A. Wanas, Mostafa A. Teama
Journal of African Earth Sciences, 2021
Well log-aided source rock potential, basin modeling, and seismic attributes: Petroleum geology case study of Pliocene discovery at South Mansoura Area (Nile Delta)
Ahmed M. Elatrash, Mohammad A. Abdelwahhab, Hamdalla A. Wanas, Samir I. El-Naggar, Hasan M. Elshayeb
Arabian Journal of Geosciences, 2021
Multi-disciplinary approach to sedimentary facies analysis of Messinian Salinity Crisis tectono-sequences (South-Mansoura Area, Nile Delta): Incised-valley fill geological model reconstruction and petroleum geology–reservoir element delineation
Ahmed M. Elatrash, M. A. Abdelwahhab, H. Wanas, Samir I. El-Naggar, Hasan M. Elshayeb
Journal of Petroleum Exploration and Production Technology, 2021
Provenance, tectonic setting and source area-paleoweathering of sandstones of the Bahariya Formation in the Bahariya Oasis, Egypt: An implication to paleoclimate and paleogeography of the southern Neo-Tethys region during Early Cenomanian
Hamdalla A. Wanas, Ehab M. Assal
Sedimentary Geology, 2021
Were springline carbonates in the kurkur–dungul area (Southern Egypt) deposited during glacial periods?
Sándor Kele, Emad S. Sallam, Enrico Capezzuoli, Mike Rogerson, Hamdalla Wanas, Chuan-Chou Shen, Mahjoor Ahmad Lone, Tsai-Luen Yu, Andrew Schauer, Katharine W. Huntington
Journal of the Geological Society, 2021
3D geological modeling of the Upper Cretaceous reservoirs in GPT oil field, Abu Sennan area, Western Desert, Egypt
Mohamed F. Abu-Hashish, Hamdalla A. Wanas, Emad Madian
Journal of Petroleum Exploration and Production Technology, 2020
Depositional model and sequence stratigraphy of the Paleocene-Lower Eocene succession in the Farafra Oasis, Western Desert, Egypt
H.A. Wanas, A.M. Abu Shama, S.A. El-Nahrawy
Journal of African Earth Sciences, 2020
Petrography and geochemistry of the Jurassic siliciclastic rocks in the Khashm El-Galala area (NW Gulf of Suez, Egypt): Implication for provenance, tectonic setting and source area paleoweathering
E.S. Sallam, H.A. Wanas
Journal of African Earth Sciences, 2019
Microbially-induced fluvial tufa in Gunna hills, Farafra Oasis, Egypt: Facies analysis and stable isotopes
H.A. Wanas, I. Armenteros
Journal of African Earth Sciences, 2019
Middle–Late Jurassic sedimentation and sea-level changes on the northeast African margin: A case study in the Khashm El-Galala area, NE Egypt
Dmitry A. Ruban, Emad S. Sallam, Hamdalla A. Wanas
Journal of African Earth Sciences, 2019
Calcareous Nannofossil Biostratigraphy of the Paleocene-Lower Eocene Successions in the Farafra Oasis, Western Desert, Egypt
A.M. Abu Shama, H.A. Wanas, S.A. El-Nahrawy
Journal of African Earth Sciences, 2019
Removal notice to Sedimentary facies, sequence stratigraphy and diagenesis of mixed fluvial siliciclastic-marine carbonate deposits of the Lower Miocene Razak Formation at Sarkhun Gas Field, Zagros Basin, SE Iran: A linkage with reservoir quality (Marine and Petroleum Geology (2018)(S026481721830062X)(10.1016/j.marpetgeo.2018.02.018)
H. Amel, H.A. Wanas, A. Jafarian, A. Amel, S. Ghazi, M.A. Caja
Marine and Petroleum Geology, 2018
Carbonate diagenesis in the Barremian-Aptian Tirgan Formation (Kopet-Dagh Basin, NE Iran): Petrographic, geochemical and reservoir quality constraints
M. Javanbakht, H.A. Wanas, A. Jafarian, N. Shahsavan, M. Sahraeyan
Journal of African Earth Sciences, 2018
Sedimentary facies, sequence stratigraphy and diagenesis of mixed fluvial siliciclastic-marine carbonate deposits of the Lower Miocene Razak Formation at Sarkhun Gas Field, Zagros Basin, SE Iran: A linkage with reservoir quality
H. Amel, H.A. Wanas, A. Jafarian, A. Amel, S. Ghazi, et al.
Marine and Petroleum Geology, 2018
Facies analysis, diagenesis and sequence stratigraphy of the carbonate-evaporite succession of the Upper Jurassic Surmeh Formation: Impacts on reservoir quality (Salman Oil Field, Persian Gulf, Iran)
Maryam Beigi, Arman Jafarian, Mohammad Javanbakht, H.A. Wanas, Frank Mattern, Amin Tabatabaei
Journal of African Earth Sciences, 2017
Abiotically-formed, primary dolomite in the mid-Eocene lacustrine succession at Gebel El-Goza El-Hamra, NE Egypt: An approach to the role of smectitic clays
H.A. Wanas, E. Sallam
Sedimentary Geology, 2016
Sedimentological, mineralogical and geochemical characteristics of the ooids in Cleopatra (Sedir Island, Gökova Bay, SW Turkey) and Alexandria (NW Egypt) Beach sediments: A comparison and reality of myth of the love
Muhsin Eren, Cüneyt Güler, Selahattin Kadir, Hamdalla Wanas
Chemie Der Erde, 2016
Stratigraphy, facies analysis and sequence stratigraphy of the Eocene succession in the Shabrawet area (north Eastern Desert, Egypt): An example for a tectonically influenced inner ramp carbonate platform
E. Sallam, H. A. Wanas, R. Osman
Arabian Journal of Geosciences, 2015
Dolomitization in the Carbonate Rocks of the Upper Turonian Wata Formation, West Sinai, NE Egypt: Petrographic and Geochemical Constraints
Tarek Anan, Hamdalla Wanas
Journal of African Earth Sciences, 2015
Mid-Eocene alluvial-lacustrine succession at Gebel El-Goza El-Hamra (Shabrawet area, NE Eastern Desert, Egypt): Facies analysis, sequence stratigraphy and paleoclimatic implications
H.A. Wanas, E. Sallam, M.K. Zobaa, X. Li
Sedimentary Geology, 2015
Diagenetic origin of ironstone crusts in the Lower Cenomanian Bahariya Formation, Bahariya Depression, Western Desert, Egypt
A.M. Afify, M.E. Sanz-Montero, J.P. Calvo, H.A. Wanas
Journal of African Earth Sciences, 2015
A fulcrum approach to assessing source-to-sink mass balance using channel paleohydrologic paramaters derivable from common fluvial data sets with an example from the cretaceous of Egypt
J. Holbrook, H. Wanas
Journal of Sedimentary Research, 2014
Calcretes and palustrine carbonates in the Oligo-Miocene clastic-carbonate unit of the Farafra Oasis, Western Desert, Egypt: Their origin and paleoenvironmental significance
H.A. Wanas, H.E. Soliman
Journal of African Earth Sciences, 2014
The uppermost deposits of the stratigraphic succession of the Farafra Depression (Western Desert, Egypt): Evolution to a Post-Eocene continental event
M.E. Sanz-Montero, H. Wanas, M.B. Muñoz-García, L. González-Acebrón, M.V. López
Journal of African Earth Sciences, 2013
Pseudospherulitic fibrous calcite from the Quaternary shallow lacustrine carbonates of the Farafra Oasis, Western Desert, Egypt: A primary precipitate with possible bacterial influence
H.A. Wanas
Journal of African Earth Sciences, 2012
The Lower Paleozoic rock units in Egypt: An overview
H.A. Wanas
Geoscience Frontiers, 2011
Late Miocene karst system at Sheikh Abdallah, between Bahariya and Farafra, Western Desert, Egypt: Implications for palaeoclimate and geomorphology
H. Wanas, M. Pickford, P. Mein, H. Soliman, L. Ségalen
Geologica Acta, 2009
Calcite-cemented concretions in shallow marine and fluvial sandstones of the Birket Qarun Formation (Late Eocene), El-Faiyum depression, Egypt: Field, petrographic and geochemical studies: Implications for formation conditions
H.A. Wanas
Sedimentary Geology, 2008
Cenomanian rocks in the Sinai Peninsula, Northeast Egypt: Facies analysis and sequence stratigraphy
H.A. Wanas
Journal of African Earth Sciences, 2008
Indications for a humid climate in the Western Desert of Egypt 11-10 Myr ago: evidence from Galagidae (Primates, Mammalia)
Martin Pickford, Hamdallah Wanas, Hosny Soliman
Comptes Rendus Palevol, 2006
The Cambrian Araba Formation in northeastern Egypt: Facies and depositional environments
M.A. Khalifa, H.E. Soliman, H.A. Wanas
Journal of Asian Earth Sciences, 2006
Petrography and geochemistry of the Cambro-Ordovician Wajid Sandstone, southwest Saudi Arabia: Implications for provenance and tectonic setting
H.A. Wanas, N.M. Abdel-Maguid
Journal of Asian Earth Sciences, 2006
Sequence stratigraphy of the Lower Cenomanian Bahariya Formation, Bahariya Oasis, Western Desert, Egypt
O. Catuneanu, M.A. Khalifa, H.A. Wanas
Sedimentary Geology, 2006
Paleosols of the Upper Cretaceous-Lower Tertiary Maghra El-Bahari Formation in the northeastern portion of the Eastern Desert, Egypt: Their recognition and geological significance
H.A. Wanas, M.M. Abu El-Hassan
Sedimentary Geology, 2006
An authigenesis of glauconite in association with unconformity: A case study from the albian/cenomanian boundary at Gabal Shabrawet, Egypt
Geochemistry International, 2003
Geochemical and petrographical studies and origin of the spheroidal dolomite in the Upper Cretaceous/Lower Tertiary Maghra El-Bahari Formation at Gabal Ataqa, Suez Canal district, Egypt
Geochemistry International, 2003
Geochemical and petrographic studies and origin of the spheroidal dolomite in the upper cretaceous/lower tertiary Maghra El-Bahari formation at Gabal Ataqa, Suez Canal district, Egypt
Geokhimiya, 2003
An authigenesis of glauconite in association with unconformity: Acase study from the Albian/Genomanian boundary at Gabal Shabrawet, Egypt
Geokhimiya, 2003
Petrography, geochemistry and primary origin of spheroidal dolomite from the Upper Cretaceous/Lower Tertiary Maghra El-Bahari Formation at Gabal Ataqa, Northwest gulf of Suez, Egypt
H.A Wanas
Sedimentary Geology, 2002
Allogenic and authigenic clays of the Lower Palæozoic sandstones of the Naqus Formation at Gebel Gunna, central Sinai, Egypt: Their recognition and geological significance
H.A. Wanas, H.E. Soliman
Journal of African Earth Sciences, 2001

Hamdalla Abdel-Gawad Abdel-Aziz Wanas

EDUCATION

RESEARCH INTERESTS

Scopus Publications