Výsledky vyhledávání - "Rafael Melkonyan"

Cenozoic Strike-Slip Tectonics and Structural Controls of Porphyry Cu-Mo and Epithermal Deposits During Geodynamic Evolution of the Southernmost Lesser Caucasus, Tethyan Metallogenic Belt

Autor: Samvel Hovakimyan, Rafael Melkonyan, Robert Moritz, Marianna Harutyunyan, Rodrik Tayan

Publikováno v: Economic Geology, Vol. 114 (2019) pp. 1301-1337

The Zangezur-Ordubad mining district of the southernmost Lesser Caucasus is located in the central segment of the Tethyan metallogenic belt and consists of porphyry Cu-Mo and epithermal Au and base metal systems hosted by the composite Cenozoic Meghr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81085002878fc9caada59b1bb15b4a66
https://doi.org/10.5382/econgeo.4662

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Zircon Hf isotopic constraints on magmatic and tectonic evolution in Iran: Implications for crustal growth in the Tethyan orogenic belt

Autor: Han-Yi Chiu, Sun-Lin Chung, Kwan-Nang Pang, Seyyed Saeid Mohammadi, Mohammad Mahdi Khatib, Rafael Melkonyan, Hao-Yang Lee, Kuo-Lung Wang, Mohammad Hossein Zarrinkoub

Publikováno v: Journal of Asian Earth Sciences. 145:652-669

This study presents coupled zircon U-Pb and Hf isotopic analyses of 82 igneous rocks that are mainly from the Urumieh-Dokhtar magmatic arc (UDMA) and Sanandaj-Sirjan zone (SSZ), Iran, together with additional 11 samples from Armenia, along the centra

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8c0af64b8ddd80132706461b5fcbbd1f
https://doi.org/10.1016/j.jseaes.2017.06.011

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Jurassic ore-forming systems during the Tethyan orogeny: constraints from the Shamlugh deposit, Alaverdi district, Armenia, Lesser Caucasus

Autor: Alexey Ulyanov, Rafael Melkonyan, Massimo Chiaradia, Jorge E. Spangenberg, Robert Moritz, Michael Calder

Publikováno v: Mineralium Deposita, Vol. 54 (2019) pp. 1011-1032

The Shamlugh polymetallic deposit located in the Alaverdi mining district, Armenia is hosted by Middle Jurassic magmatic rocks of the Somkheto-Karabakh island arc, Lesser Caucasus. Lithogeochemistry and radiogenic isotope geochemistry indicate a subd

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cb22755802104a4553d48f8c6320d54
https://archive-ouverte.unige.ch/unige:112399

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Temporal and genetic link between incremental pluton assembly and pulsed porphyry Cu-Mo formation in accretionary orogens

Autor: Alexey Ulianov, David Selby, Joern Frederik Wotzlaw, Hervé Rezeau, Rodrik Tayan, Rafael Melkonyan, François-Xavier d'Abzac, Robert Moritz, Richard A. Stern

Publikováno v: Geology
Geology (2016) P. G38088.1
Geology, 2016, Vol.44(8), pp.627-630 [Peer Reviewed Journal]

Economically important porphyry Cu-Mo deposits (PCDs) are generally hosted by upper-crustal plutons of variable chemical compositions related to distinct geodynamic settings. The absolute timing and duration of pluton assembly and PCD formation are c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72a52ee823307dd07f152a9c82354728

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Base and precious metal mineralization in Middle Jurassic rocks of the Lesser Caucasus: A review of geology and metallogeny and new data from the Kapan, Alaverdi and Mehmana districts

Autor: Johannes Mederer, Alexey Ulianov, Robert Moritz, Rafael Melkonyan, Sergej Zohrabyan, Arman Vardanyan

Publikováno v: Ore Geology Reviews, Vol. 58 (2014) pp. 185-207
Ore Geology Reviews

The polymetallic Cu–Au–Ag–Zn ± Pb, Cu–Au and Cu deposits in the Kapan, Alaverdi and Mehmana mining districts of Armenia and the Nagorno–Karabakh region form part of the Tethyan belt. They are hosted by Middle Jurassic rocks of the Lesser C

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68acf8cc0803eb44bae8159fc2c86836
https://doi.org/10.1016/j.oregeorev.2013.10.007

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Long-lived, stationary magmatism and pulsed porphyry systems during Tethyan subduction to post-collision evolution in the southernmost Lesser Caucasus, Armenia and Nakhitchevan

Autor: Massimo Chiaradia, Robert Moritz, Maria Ovtcharova, Samvel Hovakimyan, Rodrik Tayan, Rafael Melkonyan, David Selby, Alexey Ulianov, Benita Putlitz, Hervé Rezeau, Vagif Ramazanov

Publikováno v: Gondwana Research, Vol. 37 (2016) pp. 465-503
Gondwana Research
Gondwana research, 2016, Vol.37, pp.465-503 [Peer Reviewed Journal]

The composite Meghri–Ordubad and Bargushat plutons of the Zangezur–Ordubad region in the southernmost Lesser Caucasus consist of successive Eocene to Pliocene magmatic pulses, and host two stages of porphyry Cu–Mo deposits. New high-precision T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de226fddc6bd995fedbc29a0c0362782
https://archive-ouverte.unige.ch/unige:77925

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