Volume 27, Issue 1 (4-2019)                   www.ijcm.ir 2019, 27(1): 123-134 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Nazarinia A, Mortazavi M, Arvin M, Poosti M. Thermobarometry of Mamzar granitoid body, and its tectonomagmatic implication. www.ijcm.ir. 2019; 27 (1) :123-134
URL: http://ijcm.ir/article-1-1230-en.html
Abstract:   (10 Views)
The Mamzar granitoid pluton is located in the Kerman Province and structurally in southeast of Urumieh-Dokhtar magmatic zone. Based on petrographic studies, the granitoid consist of four rock type of diorite, tonalite, granodiorite and monzogranite. They are mainly composed of plagioclase (andesine), alkali-feldspar (orthoclase), quartz, amphibole (magnesiohornblende), biotite and clinopyroxene. Mineral chemistry of plagioclase indicate that their composition are andesine with An33-47 and the amphibole (calcic) have magnesiohornblende compositions that is feature of I-type granite. The biotites with Fe/ (Fe+Mg)>0.33 are magnesio-biotites. Based on TiO2 versus Al2O3 diagram, composition of amphiboles indicate crust and mantle mixing in the formation of the Mamzar granitoid magma. Application of different barometers and thermometers such as Al-in-hornblende, plagioclase-amphibole pair exhibit an average pressure of 1.14 kbar and temperatures of 660-730 °C for the intrusion. The mineral chemistry of the biotites and amphiboles indicate that this granitoid pluton is calc-alkaline and formed at the depth of less than 8 km.
Full-Text [PDF 118 kb]   (6 Downloads)    
Type of Study: Research | Subject: Special
Received: 2019/03/16 | Accepted: 2019/03/16 | Published: 2019/03/16

Add your comments about this article : Your username or Email:
CAPTCHA code

© 2019 All Rights Reserved | Iranian Journal of Crystallography and Mineralogy

Designed & Developed by : Yektaweb