Helmy, H. M. (2005). Melonite group minerals and other tellurides from three Cu–Ni–PGE prospects, Eastern Desert, Egypt. Ore Geology Reviews, 26(3-4), 305-324.

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	Helmy, Hassan M. (2005) Melonite group minerals and other tellurides from three Cu–Ni–PGE prospects, Eastern Desert, Egypt. Ore Geology Reviews, 26 (3) 305-324 doi:10.1016/j.oregeorev.2005.04.001	Journal (article/letter/editorial)
	from three Cu–Ni–PGE prospects, Eastern Desert, Egypt Hassan M. Helmy* Geology Department, Faculty of...of Science, Minia University, 61111-Minia, Egypt Received 21 April 2004; accepted 11 April 2005 Available...prospects in the Eastern Desert of Egypt: Gabbro Akarem, Genina Gharbia and Abu Swayel. The prospects are...and post-magmatic hydrothermal processes. At Genina Gharbia, ore forms either disseminations in peridotite...Tellurides; Solid solution; Cu–Ni–PGE prospects; Egypt * Fax: +20 086 342601. E-mail address: hmhelmy@yahoo
	*Helmy, H. M. (2004) Cu Ni PGE MINERALIZATION IN THE GENINA GHARBIA MAFIC ULTRAMAFIC INTRUSION, EASTERN DESERT, EGYPT. The Canadian Mineralogist, 42 (2) 351-370 doi:10.2113/gscanmin.42.2.351*	Journal (article/letter/editorial)
	MINERALIZATION IN THE GENINA GHARBIA MAFIC–ULTRAMAFIC INTRUSION, EASTERN DESERT, EGYPT HASSAN M. HELMY§ Department...Geology, Minia University, 61111-Minia, Egypt ABSTRACT The Genina Gharbia intrusion is a small late Precambrian...mafic–ultramafic complex in the Eastern Desert of Egypt. It comprises harzburgite, lherzolite, pyroxenite...and consists of pyrrhotite >> pentlandite = chalcopyrite >> pyrite = violarite = cubanite and minor ...mineralogical and chemical characteristics of the Genina Gharbia mineralization are best explained by a three-stage
	Ahmed, Ahmed Hassan, Helmy, Hassan Mohamed, Arai, Shoji, Yoshikawa, Masako (2008) Magmatic unmixing in spinel from late Precambrian concentrically-zoned mafic–ultramafic intrusions, Eastern Desert, Egypt. Lithos, 104 (1) 85-98 doi:10.1016/j.lithos.2007.11.009	Journal (article/letter/editorial)
	concentrically-zoned mafic–ultramafic intrusions, Eastern Desert, Egypt Ahmed Hassan Ahmed a , Hassan Mohamed Helmy b,⁎... Faculty of Science, Helwan University, Cairo, Egypt b Institute of Geothermal Sciences, Kyoto University...from the Eastern Desert of Egypt. These complexes; Gabbro Akarem, Genina Gharbia and Abu Hamamid are Precambrian...Re-equilibration; Alaskan-type; Mafic–ultramafic; Egypt 1. Introduction Spinels are important accessory...mafic–ultramafic complexes from the Eastern Desert of Egypt (Fig. 1). The general characteristics of these complexes
	Khedr, Mohamed Zaki, Arai, Shoji, Morishita, Tomoaki (2020) Formation of banded chromitites and associated sulphides in the Neoproterozoic subarc deep-crustal magma inferred from the Alaskan-type complex, Egypt. Ore Geology Reviews, 120. 103410 doi:10.1016/j.oregeorev.2020.103410	Journal (article/letter/editorial)
	deep-crustal magma inferred from the Alaskan-type complex, Egypt Mohamed Zaki Khedr, Shoji Arai, Tomoaki Morishita...deep-crustal magma inferred from the Alaskan-type complex, Egypt, Ore Geology Reviews (2020), doi: https://doi.org/10...deep-crustal magma inferred from the Alaskan-type complex, Egypt 1Department Mohamed Zaki Khedr1 , Shoji Arai2...Faculty of Science, Kafrelsheikh University 33516, Egypt* of Earth Sciences, Kanazawa University, Ishikawa...complex in the Southern Eastern Desert (SED) of Egypt contains cumulate dunites associated with banded
	Khedr, Mohamed Zaki, El-Awady, Amr, Arai, Shoji, Hauzenberger, Christoph, Tamura, Akihiro, Stern, Robert J., Morishita, Tomoaki (2020) Petrogenesis of the ~740 Korab Kansi mafic-ultramafic intrusion, South Eastern Desert of Egypt: Evidence of Ti-rich ferropicritic magmatism. Gondwana Research, 82. 48-72 doi:10.1016/j.gr.2019.12.013	Journal (article/letter/editorial)
	mafic-ultramafic intrusion, South Eastern Desert of Egypt: Evidence of Ti-rich ferropicritic magmatism Mohamed...mafic-ultramafic intrusion, South Eastern Desert of Egypt: Evidence of Ti-rich ferropicritic magmatism, Gondwana...mafic-ultramafic intrusion, South Eastern Desert of Egypt: Evidence of Ti-rich ferropicritic magmatism Mohamed...Kafrelsheikh, Egypt Geology Department, Faculty of Science, Zagazig University, Zagazig 44519, Egypt 3 Department...km2) intrusions in the Southern Eastern Desert of Egypt. The intrusion consists of Fe-Ti-bearing dunite
	Helmy, H. M., El Mahallawi, M. M. (2003) Gabbro Akarem mafic-ultramafic complex, Eastern Desert, Egypt: a Late Precambrian analogue of Alaskan-type complexes. Mineralogy and Petrology, 77 (1) 85-108 doi:10.1007/s00710-001-0185-9	Journal (article/letter/editorial)
	Akarem ma®c-ultrama®c complex, Eastern Desert, Egypt: a Late Precambrian analogue of Alaskan-type complexes...Department, Faculty of Science, Minia University, Minia, Egypt Received April 24, 2001; revised version accepted...fracture zone trending NE-SW in the Eastern Desert of Egypt. It intruded low-grade metasedimentary rocks, and...of Egypt, e.g, Gabbro Akarem (Carter, 1975), Abu Hammamid (Hafez et al., 1991) and Genina Gharbia. These...and Shalaby, 1976). Two of these intrusions (Genina Gharbia and Gabbro Akarem) host sub-economic Cu±Ni-PGE
	Helmy, Hassan M., Ballhaus, Chris, Berndt, Jasper, Bockrath, Cornelia, Wohlgemuth-Ueberwasser, Cora (2007) Formation of Pt, Pd and Ni tellurides: experiments in sulfide–telluride systems. Contributions to Mineralogy and Petrology, 153 (5) 577-591 doi:10.1007/s00410-006-0163-7	Journal (article/letter/editorial)
	Faculty of Science, El-Minia University, El-Minia, Egypt C. Ballhaus (&) Mineralogisches Institut und Museum...solution (mss), i.e. pyrrhotite, pentlandite, and chalcopyrite (Garuti and Rinaldi 1986; Helmy 2005). Extensive...silicate interface or they are hosted in mobilized chalcopyrite, violarite, and secondary hydrous silicates...with sulfides like pyrrhotite, pentlandite, chalcopyrite, and pyrite, which are by no means magmatic...Lodziak 2006), Abu Swayel, Gabbro Akarem, Genina Gharbia, Egypt (Helmy 2005), Las Aguilas, Argentina (Gervilla
	Helmy, Hassan M., Mogessie, Aberra (2001) Gabbro Akarem, Eastern Desert, Egypt: Cu-Ni-PGE mineralization in a concentrically zoned mafic-ultramafic complex. Mineralium Deposita, 36 (1) 58-71 doi:10.1007/s001260050286	Journal (article/letter/editorial)
	Aberra Mogessie Gabbro Akarem, Eastern Desert, Egypt: Cu±Ni±PGE mineralization in a concentrically zoned...and massive sulfides (pyrrhotite, pentlandite, chalcopyrite) are found in association with Al±Mg-rich spinel...inclusions in pyrrhotite, pentlandite, and rarely chalcopyrite and (2) at sul®de±silicate grain boundaries...Faculty of Science, Minia University, 61111-Minia, Egypt e-mail: rumenia@rusys.eg.net; Fax: +20-86-342601...geochemical survey project in the South Eastern Desert of Egypt (Bugrov and Shalaby 1973). Disseminated and massive
	Vishnevskiy, Andrey Vladislavovich, Cherdantseva, Maria Viktorovna (2016) Merenskyite and Other Precious Metal Minerals In Sulfide Blebs From the Rudniy Ultramafic-Mafic Intrusion, Northwest Mongolia. The Canadian Mineralogist, 54 (2) 519-535 doi:10.3749/canmin.1500030	Journal (article/letter/editorial)
	(BMS) minerals such as pyrrhotite, pentlandite, chalcopyrite, and cubanite. During these processes, PGE and...Helmy (2005) in his study of deposits in eastern Egypt. A weaker trend can be observed along the PdTe2–PtTe2...fundamentally similar classic pyrrhotite-pentlandite-chalcopyrite structures due to fractionation ofthe sulﬁde...matrix. (b) Cubanite lamellae in chalcopyrite. (c, d) Chalcopyrite-pentlandite lamellae and veins in...pentlandite. Chalcopyrite-cubanite intergrowths occur at the top (Fig. 3b). Pyrrhotite and chalcopyrite often
	Grieco, Giovanni, Merlini, Anna, Cazzaniga, Alberto (2012) The tectonic significance of PGM-bearing chromitites at the Ranomena mine, Toamasina chromite district, Madagascar. Ore Geology Reviews, 44. 70-81 doi:10.1016/j.oregeorev.2011.09.006	Journal (article/letter/editorial)
	mineral, followed by ilmenite, rutile, zircon, chalcopyrite, bornite, pentlandite and heazlewoodite. Platinum...Cu–Fe-sulﬁdes are less rare than Ni-sulﬁdes and comprise chalcopyrite and bornite. PGE contents of Cu–Fe sulﬁdes are...ophiolites were investigated at Eastern Desert, Egypt (Ahmed et al., 2001; Azer and Khalil, 2005), Bou...complexes, similar to the Genina Gharbia intrusion in the Eastern Desert of Egypt (Helmy, 2004; Helmy and...the late Proterozoic ophiolite, Eastern Desert, Egypt: genetic implications. Ore Geol. Rev. 32, 1–19.
	Barkov, Andrei Y., Shvedov, Gennadiy I., Flemming, Roberta L., Vymazalová, Anna, Martin, Robert F. (2017) Melonite from Kingash and Kuskanak, Eastern Sayans, Russia, and the extent of Bi-for-Te substitution in melonite and synthetic Ni(Te,Bi)₂_–x. Mineralogical Magazine, 81 (3) 695-705 doi:10.1180/minmag.2016.080.119	Journal (article/letter/editorial)
	reported occurrences of melonite are shown by the red symbol. light of overall variations gathered in...697 sulfides (BMS: pyrrhotite, pentlandite, chalcopyrite, cubanite, bornite, millerite), arsenides (nickeline...intergrowths of melonite with altaite, hosted by chalcopyrite. The melonite solid-solution series at Kingash...and Kuskanak complexes (shown by brown squares and red circles, respectively) from Eastern Sayans in Russia...Iberia (Ortega et al., 2004); Cu– Ni–PGE deposits, Egypt (Helmy, 2004; 2005); Kvintum–1 Co–Ni deposit, Middle
	Abdel-Karim, Abdel-Aal Mohamed (2013) Petrology, geochemistry and petrogenetic aspects of Younger gabbros from south Sinai: A transition from arc to active continental margin. Geochemistry, 73 (1) 89-104 doi:10.1016/j.chemer.2012.11.003	Journal (article/letter/editorial)
	Department, Faculty of Science, Zagazig University, Egypt a r t i c l e i n f o Article history: Received...gabbros Petrology Geochemistry Origin South Sinai Egypt a b s t r a c t Five minor isolated intrusions...maﬁc–ultramaﬁc complexes in the Eastern Desert of Egypt. They range in composition from normal, pyroxene–hornblende...(Farahat and Helmy, 2006), Gabbro Akarem and Genina Gharbia (Helmy and El-Mahallawi (2003). These intrusions...maﬁc–ultramaﬁc complexes in the south Eastern Desert, Egypt that analogous to the Alaskan type complexes (Helmy
	Habtoor, Abdelmonem, Ahmed, Ahmed Hassan, Harbi, Hesham (2016) Petrogenesis of the Alaskan-type mafic–ultramafic complex in the Makkah quadrangle, western Arabian Shield, Saudi Arabia. Lithos, 263. 33-51 doi:10.1016/j.lithos.2016.08.014	Journal (article/letter/editorial)
	Faculty of Science, Helwan University, Cairo, Egypt NU SC * Corresponding author: ahmh2jp@yahoo.com...by the Red Sea rift. The tectonic history of the MA Arabian-Nubian Shield started from the sea floor...phases aggregated along oxides, which are mostly chalcopyrite. The contact between dunite and other ultramafic...Neoproterozoic Shield of the Eastern Desert of Egypt (Ahmed et al., 2008). Troctolite grades outwards...2002), Eastern Desert Proterozoic SC ophiolite, Egypt (Ahmed, 2013), Neoproterozoic ophiolite of Northwestern
	Helmy, Hassan M., Botcharnikov, Roman (2020) Experimental determination of the phase relations of Pt and Pd antimonides and bismuthinides in the Fe-Ni-Cu sulfide systems between 1100 and 700 °C. American Mineralogist, 105 (3) 344-352 doi:10.2138/am-2020-7154	Journal (article/letter/editorial)
	Department of Geology, Minia University, 61519-Minia, Egypt Steinmann Institute, Universität Bonn, Poppelsdorfer...native Ni, Sb, and Bi and natural pyrrhotite, chalcopyrite, arsenopyrite, and PGE metals as the standards...sulfide minerals, although this is always true. Chalcopyrite, for example, hardly ever contains PGE that...mineralization in the Genina Gharbia mafic-ultramafic intrusion, Eastern Desert, Egypt. Canadian Mineralogist...from three Cu-Ni-PGE prospects, Eastern Desert, Egypt. Ore Geology Reviews, 26, 305–324. Helmy, H.M.,
	Helmy, H. M., Ballhaus, C., Fonseca, R. O. C., Nagel, T. J. (2013) Fractionation of platinum, palladium, nickel, and copper in sulfide–arsenide systems at magmatic temperature. Contributions to Mineralogy and Petrology, 166 (6) 1725-1737 doi:10.1007/s00410-013-0951-9	Journal (article/letter/editorial)
	Department of Geology, Minia University, Minia 61519, Egypt e-mail: hmhelmy@yahoo.com discrete minerals. In...20 nA, using native Ni, natural pyrrhotite, chalcopyrite, arsenopyrite, and PGE metals as standards....mineralization in the Genina Gharbia mafic-ultramafic intrusion, Eastern Desert Egypt. Can Mineral 42:351–370...Cu–Ni–PGE mineralization, South Eastern Desert Egypt. Econ Geol 90:2350–2360 Helmy HM, Ballhaus C, Berndt
	Helmy, Hassan M., Bragagni, Alessandro (2017) Platinum-group elements fractionation by selective complexing, the Os, Ir, Ru, Rh-arsenide-sulfide systems above 1020 °C. Geochimica et Cosmochimica Acta, 216. 169-183 doi:10.1016/j.gca.2017.01.040	Journal (article/letter/editorial)
	Department of Geology, Minia University, 61519 - Minia, Egypt 8 Present address: Institut für Geologie und...15 nA, using native Ni, natural pyrrhotite, chalcopyrite, 164 arsenopyrite, and pure PGE metals as...mineralization in the Genina Gharbia* mafic-ultramafic intrusion, Eastern Desert Egypt. Canadian Mineralogist...from three Cu–Ni–PGE prospects, Eastern Desert, Egypt. Ore Geology Reviews 26, 305–324 580 Helmy H....Cu–Ni–PGE mineralization, South Eastern Desert Egypt. 582 Economic Geology 90, 2350–2360 583 Helmy
	Barkov, Andrei Y., Nikiforov, Andrey A., Martin, Robert F., Korolyuk, Vladimir N. (2023) Corona-Type Textures in Ultrabasic Complexes of the Serpentinite Belt, Kola Peninsula, Russia. Minerals, 13 (1) 115 doi:10.3390/min13010115	Journal (article/letter/editorial)
	cumulates in the Genina Gharbia Alaskan-type complex, in the southeastern Desert of Egypt [3]. Our main...associated with base-metal sulfides (mostly chalcopyrite with subordinate bornite, pentlandite, and millerite)...plagioclase (Pl), and base-metal sulfides (BMS) of the chalcopyrite(Ccp)-bornite-millerite assemblage. The POPX
	Hamimi, Zakaria, El-Barkooky, Ahmed, Frías, Jesús Martínez, Fritz, Harald, El-Rahman, Yasser Abd - Eds. (2020) The Geology of Egypt. Springer International Publishing. doi:10.1007/978-3-030-15265-9	Book
	· Yasser Abd El-Rahman Editors The Geology of Egypt Regional Geology Reviews Series Editors Roland...Geology of Egypt 123 • Editors Zakaria Hamimi Department of Geology Benha University Benha, Egypt Jesús...El-Barkooky Department of Geology Cairo University Giza, Egypt Harald Fritz Department of Geology and Environment...El-Rahman Department of Geology Cairo University Giza, Egypt ISSN 2364-6438 ISSN 2364-6446 (electronic) Regional...by: Prof. M.A. Abd El-Wahed, Tanta University, Egypt) This Springer imprint is published by the registered
	Giri, Rohit Kumar, Pankaj, Praveer, Pandit, Dinesh, Sahoo, Samarendra, Chakrabarti, Ramananda, Chalapathi Rao, N V (2019) Pyroxenite dykes with petrological and geochemical affinities to the Alaskan-type ultramafics at the northwestern margin of the Cuddapah basin, Dharwar craton, southern India: Tectonomagmatic implications. Journal of Earth System Science, 128 (5). doi:10.1007/s12040-019-1153-2	Journal (article/letter/editorial)
	also contains epidote and sulphides (pyrite, chalcopyrite, galena and chalcocite). 5. Geochemistry 5.1...Akarem maﬁc-ultramaﬁc complex, Eastern Desert, Egypt: A late Precambrian analogue of Alaskan-type complexes;...Petrology and Sm-Nd dating of the Genina Gharbia Alaskan-type complex (Egypt): Insights into deep levels of
	Sharma, Abhinay, Giri, Rohit Kumar, Rao, N. V. Chalapathi, Rahaman, Waliur, Pandit, Dinesh, Sahoo, Samarendra (2019) Arc-Related Pyroxenites Derived from a Long-Lived Neoarchean Subduction System at the Southwestern Margin of the Cuddapah Basin: Geodynamic Implications for the Evolution of the Eastern Dharwar Craton, Southern India. The Journal of Geology, 127 (5) 567-591 doi:10.1086/704361	Journal (article/letter/editorial)
	Reﬂected-light photomicrograph showing the presence of chalcopyrite (Chy) in the Gurramkonda pyroxenites. E, F,...samples studied, only one (CHLZ/2012/2) contains chalcopyrite. It is likely that saturation of sulfur in that...concentrically-zoned maﬁc-ultramaﬁc intrusions, Eastern Desert, Egypt. Lithos 104(1–4):85–98. Amelin, Y. V.; Heaman, L...maﬁc-ultramaﬁc intrusion, South Eastern Desert, Egypt: is it an Alaskan-type or a layered intrusion? Am...Neoproterozoic Alaskan-type complex, south Eastern Desert, Egypt. J. Afr. Earth Sci. 45(2):187–197. Franz, L., and
	Mohanty, Niranjan, Singh, Surya Pratap, Satyanarayanan, Manavalan, Jayananda, Mudlappa, Korakoppa, Madiwalappa Mallappa, Hiloidari, Sikha (2019) Chromian spinel compositions from Madawara ultramafics, Bundelkhand Craton: Implications on petrogenesis and tectonic evolution of the southern part of Bundelkhand Craton, Central India. Geological Journal, 54 (4) 2099-2123 doi:10.1002/gj.3286	Journal (article/letter/editorial)
	Bundelkhand Craton showing the study area in dotted red rectangle near Madawara (modified after Singh et...to 3,200 Ma (Kaur et al., 2016). Ultramafic– chalcopyrite, pentaldite, and millerite crystallize in the... mafic– ultramafic intrusions, Eastern Desert, Egypt. Lithos, 104(1), 85–98. Arai, S. (1980). Dunite...Neoproterozoic Alaskan‐type complex, south Eastern Desert, Egypt. Journal of African Earth Sciences, 45(2), 187–197...Akarem mafic‐ ultramafic complex, Eastern Desert, Egypt: A Late Precambrian analogue of Alaskan‐type complexes
	Lages, Geysson de Almeida, Dantas, Elton Luiz (2016) Floresta and Bodocó Mafic–Ultramafic Complexes, western Borborema Province, Brazil: Geochemical and isotope constraints for evolution of a Neoproterozoic arc environment and retro-eclogitic hosted Ti-mineralization. Precambrian Research, 280. 95-119 doi:10.1016/j.precamres.2016.04.017	Journal (article/letter/editorial)
	composed of rutile + sphene or pyrrhotite + chalcopyrite + pentlandite blebs can also be considered as...concentrically-zoned mafic–ultramafic intrusions, Eastern Desert, Egypt. Lithos, 104, 85–98. Almeida F.F.M.de, Hasui Y....Neoproterozoic Alaskan-type complex, south Eastern Desert, Egypt. Journal of African Earth Sciences, 45, 187– 197...IdeidEl Sodmein District, central Eastern Desert, Egypt: their metamorphism and petrogenetic implications...Akarem mafic–ultramafic complex, Eastern Desert, Egypt: a late Precambrian analogue of Alaskan-type complexes
	Harvey, Jason, Day, James M. D. - Eds. (2016) Highly Siderophile and Strongly Chalcophile Elements in High-Temperature Geochemistry and Cosmochemistry. Reviews in Mineralogy and Geochemistry Vol. 81. Mineralogical Society of America	Report (volume)
	pyrrhotite (Fe1-xS), pentlandite ((Fe,Ni)9S8) and chalcopyrite (CuFeS2). In the crustal environment, there...Dutrizac, JE (1976) Reactions in cubanite and chalcopyrite. Can Mineral 14:172−181 Ebel DS, Naldrett AJ...temperatures decrease. During this phase, termed the red giant phase, the star begins to ascend to the upper...right on the Hertzsprung–Russell (H–R) diagram (red giant branch; Fig. 2). The He core increases its...with A > 130 (Tsujimoto and Shigeyama 2014). Unlike red giants and supernovae, however, neutron star mergers

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Chalcopyrite from Genina Gharbia, Red Sea Governorate, Egypt

Chalcopyrite from
Genina Gharbia, Red Sea Governorate, Egypt