Hassan Mohamed Helmy Hassan
Hassan Mohamed Helmy Hassan
Professor of Geology, Faculty Of Science, Minia Univ, Minia, Egypt.
Verified email at minia.edu.eg - Homepage
Title
Cited by
Cited by
Year
Formation of Pt, Pd and Ni tellurides: experiments in sulfide–telluride systems.
HM Helmy, C Ballhaus, J Berndt, C Bockrath, ...
Contributions to Mineralogy and Petrology 153 (5), 577-591, 2007
1262007
Partitioning of Se, As, Sb, Te and Bi between monosulfide solid solution and sulfide melt–application to magmatic sulfide deposits
HM Helmy, C Ballhaus, C Wohlgemuth-Ueberwasser, ROC Fonseca, ...
Geochimica et Cosmochimica Acta 74 (21), 6174-6179, 2010
1252010
Gabbro Akarem mafic-ultramafic complex, Eastern Desert, Egypt: a Late Precambrian analogue of Alaskan-type complexes
HM Helmy, MM El Mahallawi
Mineralogy and Petrology 77 (1-2), 85-108, 2003
1162003
Composition and total-Pb model ages of monazite from high-grade paragneisses in the Abu Swayel area, southern Eastern Desert, Egypt
F Finger, HM Helmy
Mineralogy and Petrology 62 (3-4), 269-289, 1998
901998
Noble metal nanoclusters and nanoparticles precede mineral formation in magmatic sulphide melts
HM Helmy, C Ballhaus, ROC Fonseca, R Wirth, T Nagel, M Tredoux
Nature communications 4, 2405, 2013
872013
Pressure, temperature and oxygen fugacity conditions of calc-alkaline granitoids, Eastern Desert of Egypt, and tectonic implications
HM Helmy, AF Ahmed, MM El Mahallawi, SM Ali
Journal of African Earth Sciences 38 (3), 255-268, 2004
842004
Abu Hamamid Neoproterozoic Alaskan-type complex, south Eastern Desert, Egypt
ES Farahat, HM Helmy
Journal of African Earth Sciences 45 (2), 187-197, 2006
742006
The Sukari Gold Mine, Eastern Desert—Egypt: structural setting, mineralogy and fluid inclusion study
HM Helmy, R Kaindl, H Fritz, J Loizenbauer
Mineralium Deposita 39 (4), 495-511, 2004
722004
The U/Pb ratio of the Earth's mantle—A signature of late volatile addition
C Ballhaus, V Laurenz, C Münker, ROC Fonseca, F Albarède, ...
Earth and Planetary Science Letters 362, 237-245, 2013
492013
Gabbro Akarem, Eastern Desert, Egypt: Cu–Ni–PGE mineralization in a concentrically zoned mafic–ultramafic complex
HM Helmy, A Mogessie
Mineralium Deposita 36 (1), 58-71, 2001
472001
Fractionation of platinum, palladium, nickel, and copper in sulfide–arsenide systems at magmatic temperature
HM Helmy, C Ballhaus, ROC Fonseca, TJ Nagel
Contributions to Mineralogy and Petrology 166 (6), 1725-1737, 2013
432013
Mineral chemistry of the Neoproterozoic Alaskan-type Akarem Intrusion with special emphasis on amphibole: Implications for the pluton origin and evolution of subduction-related …
Y Abd El-Rahman, HM Helmy, T Shibata, M Yoshikawa, S Arai, A Tamura
Lithos 155, 410-425, 2012
392012
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
392008
Petrology and Sm–Nd dating of the Genina Gharbia Alaskan-type complex (Egypt): insights into deep levels of Neoproterozoic island arcs
HM Helmy, YM Abd El-Rahman, M Yoshikawa, T Shibata, S Arai, ...
Lithos 198, 263-280, 2014
362014
A fore-arc setting of the Gerf ophiolite, Eastern Desert, Egypt: evidence from mineral chemistry and geochemistry of ultramafites
AAM Abdel-Karim, S Ali, HM Helmy, SA El-Shafei
Lithos 263, 52-65, 2016
342016
Cu–Ni–PGE mineralization in the Genina Gharbia mafic–ultramafic intrusion, eastern desert, Egypt
HM Helmy
The Canadian Mineralogist 42 (2), 351-370, 2004
312004
Melonite group minerals and other tellurides from three Cu–Ni–PGE prospects, Eastern Desert, Egypt
HM Helmy
Ore Geology Reviews 26 (3-4), 305-324, 2005
292005
Silver and silver-bearing minerals at the Um Samiuki volcanogenic massive sulphide deposit, Eastern Desert, Egypt
IM Shalaby, E Stumpfl, HM Helmy, MM El Mahallawi, OA Kamel
Mineralium Deposita 39 (5-6), 608-621, 2004
282004
Platinum-group minerals from the metamorphosed Abu Swayel Cu-Ni-PGE deposit, South Eastern Desert, Egypt
HM Helmy, EF Stumpfl, OA Kamel
Economic Geology 90 (8), 2350-2360, 1995
261995
The Um Samiuki volcanogenic Zn-Cu-Pb-Ag-deposit, Eastern Desert, Egypt; a possible new occurrence of cervelleite
HM Helmy
The Canadian Mineralogist 37 (1), 143-154, 1999
251999
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