1
School of Geology, College of Sciences, University of Tehran, Tehran, Iran
2
کردستان سنندج دانشگاه کردستان
Abstract
The Nasrand intrusion, in the central part of Uromieh-Dokhtar magmatic belt is mainly composed of granite and granodiorite. The intrusive rocks are hosted by various dikes trending NW-SE. The granites and granodiorites are dominated by plagioclase, K-feldspar, quartz, biotite, amphibole, whereas the dikes are characterized b similar mineralogy in addition to pyroxene. The amphiboles are calcic with (Na+K)Aâ¤0.5 and magnesio -hornblende composition in the granitic rocks with (Na+K)A>0.5 and AlIV3 are magnesio-biotites. The pyroxenes in the studied dikes are clinopyroxene with augite composition. The mineral chemistry of the biotites, amphiboles and pyroxenes indicate that this intrusion is calc-alkaline and have been crystallized in a subduction zone setting.
Kananian, A. , Ahmadian, J. and Sarjoughian, F. (2015). The composition of the major minerals in the Nasrand intrusive rocks and its dikes. Petrological Journal, 6(21), 35-54.
MLA
Kananian, A. , , Ahmadian, J. , and Sarjoughian, F. . "The composition of the major minerals in the Nasrand intrusive rocks and its dikes", Petrological Journal, 6, 21, 2015, 35-54.
HARVARD
Kananian, A., Ahmadian, J., Sarjoughian, F. (2015). 'The composition of the major minerals in the Nasrand intrusive rocks and its dikes', Petrological Journal, 6(21), pp. 35-54.
CHICAGO
A. Kananian , J. Ahmadian and F. Sarjoughian, "The composition of the major minerals in the Nasrand intrusive rocks and its dikes," Petrological Journal, 6 21 (2015): 35-54,
VANCOUVER
Kananian, A., Ahmadian, J., Sarjoughian, F. The composition of the major minerals in the Nasrand intrusive rocks and its dikes. Petrological Journal, 2015; 6(21): 35-54.
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