Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Mehraj Aghazadeh"'
Autor:
Zahra Badrzadeh, Mehraj Aghazadeh
Publikováno v:
پترولوژی, Vol 13, Iss 3, Pp 131-160 (2022)
IntroductionThe Precambrian-Early Cambrian magmatism in Iran includes magmatic rocks in the central, northwestern (e.g. Tekab-Zanjan zone), and northeastern parts of the Iranian plate. Although in the previous literature, the petrogenesis and tectoni
Externí odkaz:
https://doaj.org/article/946aca4436ba41a180aac2236672a74f
Publikováno v:
پترولوژی, Vol 11, Iss 3, Pp 21-40 (2020)
The studied volcanic-sedimentary sequence located at the East-Azarbaijan province, north Marand and in the Central Iranian structural zone. The studied sequence composed of alternative sandstone, shale, conglomerate, limestone, felsic volcaniclastics
Externí odkaz:
https://doaj.org/article/c98c3cd9884c471bb07704d292c36237
Publikováno v:
Bulletin of the Mineral Research and Exploration, Vol 158, Iss 158, Pp 235-250 (2019)
Bu çalışmanın temel amacı, yerel ölçekte Coğrafi Bilgi Sistemleri (CBS) temelli olasılık modeli kullanarak porfiri cevherleşme olasılığını ortaya koymak ve oluşturulan modelin geçerliliğini saha gözlemleri, yüzey örneklemesi ve
Externí odkaz:
https://doaj.org/article/86437b1436c34f2ea0f8bf296085b81c
Autor:
Mohammad Mobashergermi, Reza Zarei Sahamieh, Mehraj Aghazadeh, Ahmad Ahamadi Khalaji, gholamreza ahmadzadeh, Peter Le Roux
Publikováno v:
پترولوژی, Vol 10, Iss 1, Pp 23-52 (2019)
basaltic rocks in Barzand area (Continue to Kousmalyn basaltic rocks in Iran) show parallel trend with Poshtasar basalt and they have older age according to stratigraphy in comparison with Poshtasar basalts. These basalts whit prismatic structure mos
Externí odkaz:
https://doaj.org/article/6dfcab4b83eb4ea49119fc4814566efe
Publikováno v:
پترولوژی, Vol 9, Iss 3, Pp 147-172 (2018)
The studied area is located in the SE of Heris (Eastern Azerbaijan province) and the Alborz-Azerbaijan structural zone. The Eocene volcanic rocks in the area of under study show various compositions ranging from olivine basalt, hornblende basalt, bas
Externí odkaz:
https://doaj.org/article/a5759af1604345a3b212be255bb6ce0a
Publikováno v:
پترولوژی, Vol 9, Iss 1, Pp 91-110 (2018)
The Cretaceous volcanic rocks (Andesite and basaltic andesite) in the northwest of Iran, south - southwest of the Germi city (Ardabil province), have considerable outcrops with northwest - southeast trend. The textures in the studied rocks are porphy
Externí odkaz:
https://doaj.org/article/627f10ffa8ae4be2856d33f43ca9af0b
Publikováno v:
China Geology, Vol 2, Iss 2, Pp 240-242 (2019)
Externí odkaz:
https://doaj.org/article/4b20542800064869b874ebc17a77ac72
Autor:
Mehraj Aghazadeh
Publikováno v:
پترولوژی, Vol 7, Iss 28, Pp 1-20 (2016)
In this research, zircon Hf isotopic ratios from Sungun, Sar Cheshmeh, Meiduk, Darreh Zar and Bondar Hoza porphyry mineralized intrusions has been studied. The Hf isotopic ratios in the studied porphyry intrusions are similar and the average of zirco
Externí odkaz:
https://doaj.org/article/d3f96fc89cc64710a09fb931ab2e3e85
Publikováno v:
Iranian Journal of Crystallography and Mineralogy. 30:639-652
Autor:
Yi-Xin Liu, Jian-Lin Chen, Tian-Nan Yang, Zeng-Qian Hou, Hong-Rui Zhang, Zhi-Ming Yang, Zhu-Sen Yang, Mehraj Aghazadeh, Ji-Feng Xu
Publikováno v:
Journal of the Geological Society. 180
Adakitic rocks occur in a variety of tectonic settings and are key to understanding the tectonic evolution and geodynamics of orogenic belts. We investigated latest Oligocene (23.5–22.5 Ma) quartz monzonites and granites from the western segment of