Zobrazeno 1 - 10
of 66
pro vyhledávání: '"A Ahmadi Khalaji"'
Publikováno v:
Journal of Economic Geology, Vol 15, Iss 3, Pp 71-102 (2023)
The nickel-bearing laterites of Noorabad area are seen in the high Zagros zone along with Kermanshah ophiolitic complex. The ophiolitic complex in the studied area includes serpentinized peridotites, isotropic gabbros, plagiogranite, sheeted dykes, b
Externí odkaz:
https://doaj.org/article/3be80ec6311c49c4b405a84605e20e02
Autor:
Mohammad Reza Emami Meybodi, Nahid Naseri, Reza Zarei Sahamieh, Khadijeh Momeni Zafarabad, Ahmad Ahmadi Khalaji
Publikováno v:
Journal of Economic Geology, Vol 13, Iss 4, Pp 741-765 (2021)
Introduction Considering the wide extent of the Urumieh-Dokhtar magmatic arc and the presence of many intrusive and volcanic rocks in this belt, an important question from scientific and exploration points of view is “Why are some plutons producti
Externí odkaz:
https://doaj.org/article/d9ef2eb6ef3b42da8dd1ac7ec08a5023
Autor:
Zare-Shooli, Masoumeh, Tahmasbi, Zahra, Ao, Songjian, Zhang, Hua-Feng, Saki, Adel, Ahmadi-Khalaji, Ahmad, Yakymchuk, Chris, Esmaeili, Rasoul, Karsli, Orhan
Publikováno v:
In LITHOS October 2021 398-399
Autor:
Ahmad Ahmadi Khalaji, Abdolsamad Pourmohammad, Mohammad Ebrahimi, Masoud Homam, Rasoul Esmaeili
Publikováno v:
Journal of Economic Geology, Vol 13, Iss 1, Pp 215-242 (2021)
Introduction The chemical composition of biotite in mineralization associated with granitoids and copper porphyry deposits is sensitive to several chemical and physical factors. It is also related tomagmatic and hydrothermal activities including wat
Externí odkaz:
https://doaj.org/article/e8bb7b34ce37409ebfdf2422b932d007
Publikováno v:
Journal of Economic Geology, Vol 12, Iss 1, Pp 23-45 (2020)
Introduction Partial melting is an appropriate correlation process between metamorphism and magmatism which plays a key role in the development of migmatites, granulites and S-type granites during crust evolution (Kriegsman, 2001; Alvarez-Valero and
Externí odkaz:
https://doaj.org/article/de667f6b12f0415386378d7b513c93d4
Autor:
Seyed Nematollah Haghighi Bardineh, Reza Zarei Sahamieh, Hassan Zamanian, Ahmad Ahmadi Khalaji
Publikováno v:
Journal of Economic Geology, Vol 10, Iss 2, Pp 497-535 (2019)
Introduction The Urumieh-Dokhtar Magmatic Assemblage (UDMA) forms a distinct NW-SE linear intrusive–extrusive complex Magmatism of the UDMA that occurred from Eocene to Quaternary, although the maximum activity was in the middle Eocene (Berberian
Externí odkaz:
https://doaj.org/article/32cb18d950ad4935925df50e981579d2
Publikováno v:
پترولوژی, Vol 9, Iss 4, Pp 67-88 (2019)
Tourmaline occurs in the biotite-muscovite granite of Mashhad as nodule, euhedral tourmalines in pegmatite and aplite, quartz-tourmaline veins, tourmaline-rich veins and radial tourmalines. Compositionally, they all are between schorl and dravite end
Externí odkaz:
https://doaj.org/article/7148ffb0037b445eb99a7e09c142177c
Publikováno v:
In Chemie der Erde April 2018 78(1):58-77
Autor:
Haghighi Bardineh, Seyyed Nematollah, Zarei Sahamieh, Reza, Zamanian, Hassan, Ahmadi Khalaji, Ahmad
Publikováno v:
In Journal of African Earth Sciences March 2018 139:354-366
Publikováno v:
پترولوژی, Vol 8, Iss 29, Pp 153-170 (2017)
Basic dykes, trending NE-SW and cross cutting the middle Jurassic granodioritic rocksexposed in the Boroujerd area. They are dark green and fine to medium–grained rocksand are characterized by ophitic to subophitic texture. These rocks are dominate
Externí odkaz:
https://doaj.org/article/984a05ae3f614cc3babdf290048e767d