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THE KABR EL-BONAYA PERIDOTITES, SOUTHEASTERN SINAI, EGYPT: PETROLOGY, GEOCHEMISTRY, AND METAMORPHISM OF NEOPROTEROZOIC ARC ULTRAMAFIC CUMULATES 期刊论文
发表期刊: AMERICAN JOURNAL OF SCIENCE. 出版年: 2021, 卷号: 321, 期号: 10, 页码: 1445-1496
作者:  Maurice, Ayman E.;  Azer, Mokhles K.;  Asimow, Paul D.;  Basta, Fawzy F.;  Helmy, Hassan M.;  Shibata, Tomoyuki
收藏  |  浏览/下载：22/0  |  提交时间：2022/02/12
Neoproterozoic  Island Arcs  Ultramafic cumulates  Arabian-Nubian Shield  Sinai  
Petrology of a Neoproterozoic mantle peridotite-chromitite association from Abu Dahr area, Eastern Desert, Egypt: Infiltration of a boninitic melt in highly depleted harzburgite 期刊论文
发表期刊: JOURNAL OF AFRICAN EARTH SCIENCES. 出版年: 2020, 卷号: 165
作者:  Halim, Ali H. Abdel;  Helmy, Hassan M.;  Elhaddad, Mervet A.;  El-Mahallawi, Mahmoud M.;  Mogessie, Aberra
收藏  |  浏览/下载：18/0  |  提交时间：2020/05/22
Abu Dahr ophiolite  SSZ peridotites  Orthopyroxenite  Chromitite  Forearc mantle wedge  Boninitic melt  
Experimental determination of the phase relations of Pt and Pd antimonides and bismuthinides in the Fe-Ni-Cu sulfide systems between 1100 and 700 degrees C 期刊论文
发表期刊: AMERICAN MINERALOGIST. 出版年: 2020, 卷号: 105, 期号: 3, 页码: 344-352
作者:  Helmy, Hassan M.;  Botcharnikov, Roman
收藏  |  浏览/下载：3/0  |  提交时间：2020/05/22
Platinum-group minerals  antimonides  bismuthinides  experimental study  sulfide system  phase relations  
Geochemical and geochronological characteristics of the Um Rus granite intrusion and associated gold deposit, Eastern Desert, Egypt 期刊论文
发表期刊: GEOSCIENCE FRONTIERS. 出版年: 2020, 卷号: 11, 期号: 1, 页码: 325-345
作者:  Zoheir, Basem;  Goldfarb, Richard;  Holzheid, Astrid;  Helmy, Hassan;  El Sheikh, Ahmed
收藏  |  浏览/下载：7/0  |  提交时间：2020/03/23
Um Rus intrusion  Whole-rock geochemistry  SHRIMP U-Pb monazite dating  Gold mineralization  LA-ICP-MS data of pyrite and arsenopyrite  
Geology, mineralogy and genesis of the world-class Mahd Adh Dhahab epithermal Au-(Ag)-telluride deposit, Kingdom of Saudi Arabia 期刊论文
发表期刊: JOURNAL OF ASIAN EARTH SCIENCES. 出版年: 2020, 卷号: 201
作者:  El-shafei, Shaimaa A.;  Abdel-Maksoud, Kholoud M.;  Helmy, Hassan M.;  Ahmed, Ahmed H.
收藏  |  浏览/下载：4/0  |  提交时间：2021/01/07
Mahd Adh Dhahab Au-(Ag)-tellurides  Tellurium  Epithermal  Arabian Shield  
Mineralogy and geochemistry of metasomatized mantle peridotites from the Eastern Desert of Egypt: The role of granite-related hydrothermal fluids in gold mineralizations 期刊论文
发表期刊: JOURNAL OF AFRICAN EARTH SCIENCES. 出版年: 2018, 卷号: 144, 页码: 136-150
作者:  Helmy, Hassan M.;  Elshafei, Shaimaa;  Elwan, Waheed
收藏  |  浏览/下载：16/0  |  提交时间：2019/11/29
Geochemistry  Metasomatized mantle peridotites  Serpentinite  Gold mineralization  Granite-related fluids  Eastern Desert  Egypt  
Platinum-group elements fractionation by selective complexing, the Os, Ir, Ru, Rh-arsenide-sulfide systems above 1020 degrees C 期刊论文
发表期刊: GEOCHIMICA ET COSMOCHIMICA ACTA. 出版年: 2017, 卷号: 216, 页码: 169-183
作者:  Helmy, Hassan M.;  Bragagni, Alessandro
收藏  |  浏览/下载：3/0  |  提交时间：2019/11/29
Platinum-group elements  Platinum-group minerals  PGE fractionation  Arsenides  Sulfides  
Petrology of the Motaghairat mafic-ultramafic complex, Eastern Desert, Egypt: A high-Mg post-collisional extension-related layered intrusion 期刊论文
发表期刊: JOURNAL OF ASIAN EARTH SCIENCES. 出版年: 2016, 卷号: 116, 页码: 164-180
作者:  Halim, Ali H. Abdel;  Helmy, Hassan M.;  Abd El-Rahman, Yasser M.;  Shibata, Tomoyuki;  El Mahallawi, Mahmoud M.;  Yoshikawa, Masako;  Arai, Shoji
收藏  |  浏览/下载：3/0  |  提交时间：2019/11/29
Layered intrusion  High-Mg magma  Post-collision  Metasomatised mantle  Lithospheric delamination  Slab break-off  
A fore-arc setting of the Gerf ophiolite, Eastern Desert, Egypt: Evidence from mineral chemistry and geochemistry of ultramafites 期刊论文
发表期刊: LITHOS. 出版年: 2016, 卷号: 263, 页码: 52-65
作者:  Abdel-Karim, Abdel-Aal M.;  Ali, Shehata;  Helmy, Hassan M.;  El-Shafei, Shymaa A.
收藏  |  浏览/下载：5/0  |  提交时间：2019/11/29
Neoproterozoic  Mantle rocks  Gerf ophiolite  Boninitic magma  Fore-arc  
Ground geophysical survey for studying the potentiality of uranium mineralization in rhyolite zone-Um Safi area, Central Eastern Desert, Egypt 期刊论文
发表期刊: ARABIAN JOURNAL OF GEOSCIENCES. 出版年: 2015, 卷号: 8, 期号: 8, 页码: 6279-6303
作者:  Abouelnaga, Helmy S. O.;  El-Shayeb, Hassan;  Mahmoud, Tarek;  Gaafar, Ibraheem;  Abu Donia, Atef
收藏  |  浏览/下载：13/0  |  提交时间：2019/11/29
Um Safi  Rhyolite  Spectrometry  VLF  Trenches