Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Ghodrat Torabi"'
Publikováno v:
Journal of Economic Geology, Vol 16, Iss 2, Pp 61-94 (2024)
The Godar-e-Siah Eocene monzodiorite stock is located in the southwest of the Jandaq area (NE of Isfahan) and northwest of the Central-East Iranian Microcontinent (CEIM). The main minerals in these monzodiorites are plagioclase, K-feldspar, clinopyro
Externí odkaz:
https://doaj.org/article/118d7c9ffb6d42bf88e67eb8b8a7987f
Publikováno v:
Journal of Economic Geology, Vol 15, Iss 4, Pp 55-79 (2023)
In central part of the Mesozoic Ashin ophiolite (Northwest of Anarak, Isfahan province, Iran), the Upper Eocene monzonitic stock cross cuts the Ashin ophiolite and Middle Eocene volcanic rocks. Amphibolite xenoliths are enclosed in the stock and asso
Externí odkaz:
https://doaj.org/article/edfb901d923e404e8427dcad3da28ec8
Publikováno v:
Journal of Economic Geology, Vol 15, Iss 4, Pp 137-158 (2023)
The Lower Oligocene basic dikes are cropped out in the Chah-e-Alikhan area (Northeast of Isfahan province, North of the Daq-e-Sorkh desert). These dikes show NE-SW and NW-SE trends and cross cut the Eocene volcanic rocks and associated flysches. NW-S
Externí odkaz:
https://doaj.org/article/45c49ee7a7a44e7b8d2f2d85ab1a4a5c
Publikováno v:
Journal of Economic Geology, Vol 14, Iss 2, Pp 115-141 (2022)
Introduction In the northeastern part of the Isfahan province and 65 km northeast of the Anarak city (Kal-e-Kafi area), an I-type granitoid pluton cross cut the Paleozoic metamorphic rocks and Eocene volcanic rocks. In the contact of this granitoid
Externí odkaz:
https://doaj.org/article/97fe16a4103242e89633d819d2cb2ca6
Autor:
Paniz Shadman, Ghodrat Torabi
Publikováno v:
Journal of Economic Geology, Vol 14, Iss 1, Pp 157-184 (2022)
Introduction Subduction-related magmas are characterized by enrichment of large ion lithophile elements (LILEs), light rare earth elements (LREEs) and depletion in high field strength elements (HFSEs) (Harangi et al., 2007). These geochemical signat
Externí odkaz:
https://doaj.org/article/d4eac5cc166740dcb932a782c6364f4d
Publikováno v:
Journal of Economic Geology, Vol 13, Iss 1, Pp 145-164 (2021)
Introduction Granitoids are the main rock units in the continental crust. Study of granitoids reveals significant information on tectonic mantle and upper crust. Many researchers have investigated petrogenesis and origin of granitoids (e.g., Chappel
Externí odkaz:
https://doaj.org/article/811af172211d441396fd57040281d9a5
Autor:
Ahmad Jamshidzaei, Ghodrat Torabi
Publikováno v:
Journal of Economic Geology, Vol 10, Iss 2, Pp 355-379 (2019)
The “adakite” term was used for the first time by Defant and Drummond (1990) to display Cenozoic arcs igneous rocks with intermediate composition (SiO2> 56 wt.%), which were produced by partial melting of subducted oceanic crust. The adakites are
Externí odkaz:
https://doaj.org/article/c4e13a829b224a75ae5c20a4dd6d63b1
Autor:
Masumeh Sargazi, Ghodrat Torabi
Publikováno v:
Journal of Economic Geology, Vol 10, Iss 2, Pp 449-470 (2019)
Introduction Granitoids are the most common igneous rocks that are found in all parts of the continental crust and play an important role in the formation and evolution of the Earth’s continental crust (Clarke, 1992). Granitoid plutons contain use
Externí odkaz:
https://doaj.org/article/773877055cac4554b1053c93d2f689ac
Autor:
Gholam Hossain Nazari, Ghodrat Torabi
Publikováno v:
Journal of Economic Geology, Vol 9, Iss 2, Pp 375-395 (2017)
Introduction Lamprophyres are mesocratic to melanocratic igneous rocks, usually hypabyssal, with a panidiomorphic texture and abundant mafic phenocrysts of dark mica or amphibole (or both) with or without pyroxene, with or without olivine, set in a
Externí odkaz:
https://doaj.org/article/d3ed46151cfd4e25bbd6b4515ca20ee0
Publikováno v:
Journal of Economic Geology, Vol 9, Iss 1, Pp 57-72 (2017)
Introduction Study of the petrology of the ophiolites as the relics of ancient oceanic lithosphere, is a powerful tool to reconstruct Earth’s history. Mantle peridotites have mostly undergone alteration and serpentinization to some extent. Thus, t
Externí odkaz:
https://doaj.org/article/905bdb6f3ecf4dbcb3f67da95fcd4342