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Ahmed Hassan Ahmed
Ahmed Hassan Ahmed
Professor of Ore Geology, Helwan University, King Abdulaziz University
Verified email at kau.edu.sa - Homepage
Title
Cited by
Cited by
Year
Unexpectedly high-PGE chromitite from the deeper mantle section of the northern Oman ophiolite and its tectonic implications
A Ahmed, S Arai
Contributions to Mineralogy and Petrology 143 (3), 263-278, 2002
2762002
Petrological characteristics of podiform chromitites and associated peridotites of the Pan African Proterozoic ophiolite complexes of Egypt
AH Ahmed, S Arai, AK Attia
Mineralium Deposita 36, 72-84, 2001
1582001
Platinum-group minerals in podiform chromitites of the Oman ophiolite
AH Ahmed, S Arai
The Canadian Mineralogist 41 (3), 597-616, 2003
1362003
Spinel composition as a petrogenetic indicator of the mantle section in the Neoproterozoic Bou Azzer ophiolite, Anti-Atlas, Morocco
AH Ahmed, S Arai, YM Abdel-Aziz, A Rahimi
Precambrian Research 138 (3-4), 225-234, 2005
1252005
Mineralogy and paragenesis of the Co-Ni arsenide ores of Bou Azzer, Anti-Atlas, Morocco
AH Ahmed, S Arai, M Ikenne
Economic Geology 104 (2), 249-266, 2009
1182009
Upper crustal podiform chromitite from the northern Oman ophiolite as the stratigraphically shallowest chromitite in ophiolite and its implication for Cr concentration
S Arai, J Uesugi, AH Ahmed
Contributions to Mineralogy and Petrology 147, 145-154, 2004
1002004
Podiform chromitite classification revisited: A comparison of discordant and concordant chromitite pods from Wadi Hilti, northern Oman ophiolite
M Miura, S Arai, AH Ahmed, T Mizukami, M Okuno, S Yamamoto
Journal of Asian Earth Sciences 59, 52-61, 2012
972012
Highly depleted harzburgite–dunite–chromitite complexes from the Neoproterozoic ophiolite, south Eastern Desert, Egypt: a possible recycled upper mantle lithosphere
AH Ahmed
Precambrian Research 233, 173-192, 2013
912013
Osmium isotope systematics of the Proterozoic and Phanerozoic ophiolitic chromitites: in situ ion probe analysis of primary Os-rich PGM
AH Ahmed, K Hanghøj, PB Kelemen, SR Hart, S Arai
Earth and Planetary Science Letters 245 (3-4), 777-791, 2006
872006
Low-T formation of high-Cr spinel with apparently primary chemical characteristics within podiform chromitite from Rayat, northeastern Iraq
S Arai, Y Shimizu, SA Ismail, AH Ahmed
Mineralogical Magazine 70 (5), 499-508, 2006
862006
Origin of magnetite veins in serpentinite from the Late Proterozoic Bou-Azzer ophiolite, Anti-Atlas, Morocco: An implication for mobility of iron during serpentinization
HA Gahlan, S Arai, AH Ahmed, Y Ishida, YM Abdel-Aziz, A Rahimi
Journal of African Earth Sciences 46 (4), 318-330, 2006
762006
Mineralogy, geochemistry and origin of Mn in the high-Mn iron ores, Bahariya Oasis, Egypt
HM Baioumy, MZ Khedr, AH Ahmed
Ore Geology Reviews 53, 63-76, 2013
712013
Platinum-group elements distribution and spinel composition in podiform chromitites and associated rocks from the upper mantle section of the Neoproterozoic Bou Azzer ophiolite …
AH Ahmed, S Arai, YM Abdel-Aziz, M Ikenne, A Rahimi
Journal of African Earth Sciences 55 (1-2), 92-104, 2009
712009
Diversity of platinum-group minerals in podiform chromitites of the late Proterozoic ophiolite, Eastern Desert, Egypt: genetic implications
AH Ahmed
Ore Geology Reviews 32 (1-2), 1-19, 2007
592007
Diversity of platinum-group minerals in podiform chromitites of the late Proterozoic ophiolite, Eastern Desert, Egypt: genetic implications
AH Ahmed
Ore Geology Reviews 32 (1-2), 1-19, 2007
592007
SARS‐CoV‐2 infection and venous thromboembolism after surgery: an international prospective cohort study
COVIDSurg Collaborative, GlobalSurg Collaborative, D Nepogodiev, ...
Anaesthesia 77 (1), 28-39, 2022
572022
Magmatic unmixing in spinel from late Precambrian concentrically-zoned mafic–ultramafic intrusions, Eastern Desert, Egypt
AH Ahmed, HM Helmy, S Arai, M Yoshikawa
Lithos 104 (1-4), 85-98, 2008
542008
Compositional variations and tectonic settings of podiform chromitites and associated ultramafic rocks of the Neoproterozoic ophiolite at Wadi Al Hwanet, northwestern Saudi Arabia
AH Ahmed, HM Harbi, AM Habtoor
Journal of Asian Earth Sciences 56, 118-134, 2012
532012
Heterogeneously depleted Precambrian lithosphere deduced from mantle peridotites and associated chromitite deposits of Al'Ays ophiolite, Northwestern Arabian Shield, Saudi Arabia
AH Ahmed, A Habtoor
Ore Geology Reviews 67, 279-296, 2015
442015
Fluid-related modifications of Cr-spinel and olivine from ophiolitic peridotites by contact metamorphism of granitic intrusions in the Ablah area, Saudi Arabia
AH Ahmed, AA Surour
Journal of Asian Earth Sciences 122, 58-79, 2016
412016
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