Geochemistry Petrography, thermobarometry and investigation of magmatic series in Mirabad- Chehel Khane granitoid body (east of Bouin– Miandasht, Isfahan province)
| Title: | Geochemistry Petrography, thermobarometry and investigation of magmatic series in Mirabad- Chehel Khane granitoid body (east of Bouin– Miandasht, Isfahan province) |
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| Authors: | Seyed Mohsen Tabatabaei Manesh, Akram Sadat Mirlohi, Zahra mosayebi |
| Source: | پترولوژی, Vol 8, Iss 31, Pp 189-211 (2017) |
| Publisher Information: | University of Isfahan, 2017. |
| Publication Year: | 2017 |
| Collection: | LCC:Petrology |
| Subject Terms: | granitoid, mineral chemistry, geothermobarometry, Sanandaj - Sirjan Zone, Bouin – Miandasht, Petrology, QE420-499 |
| More Details: | On the base of petrology, the Mirabad- Chehel Khane granitoid, east of Bouin-Miandasht, dominantly consists of syenogranite, monzogranite, alkali granite and granodiorites. The main minerals of these rocks are quartz, alkali feldspar (Orthoclase), plagioclase (Albite - Oligoclase), biotite, ± amphibole with minor amount of allanite, zircon, titanite, apatite, ± tourmaline. The biotite from the granites are Fe-rich type (annite) and primary magmatic in origin. The composition of the biotites studied principally falls in the calc-alkaline subduction related I-type granite on the tectonomagmatic discrimination diagrams, which stand on their major element oxides. Which is consistent with the nature of their host rocks. The studied amphiboles are classified as calcic (ferro-hornblende) which points to the I-type nature of the granitoid. The tourmaline composition plots on the schorl - foitite field. The temperature for the alteration, on the base of chlorite composition from the syenogranite, is estimated around 350°C and from the monzogranite rocks about 341°C. Based on the application of Al-in amphibole, a 3 Kbar pressure was determined for the syenogranite unit corresponding to the depth of 8-11 Km for the emplacement of the pluton. Hornblende- plagioclase thermometer shows 694 to 700°C for the equilibrium of these two minerals. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | Persian |
| ISSN: | 2228-5210 2322-2182 |
| Relation: | http://ijp.ui.ac.ir/article_22399_ebdcceb99d7c9a1ab4ec0d650b28bf42.pdf; https://doaj.org/toc/2228-5210; https://doaj.org/toc/2322-2182 |
| DOI: | 10.22108/ijp.2017.82005 |
| Access URL: | https://doaj.org/article/884c33375c7b4415b20175619877602c |
| Accession Number: | edsdoj.884c33375c7b4415b20175619877602c |
| Database: | Directory of Open Access Journals |
| ISSN: | 22285210 23222182 |
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| DOI: | 10.22108/ijp.2017.82005 |
| Published in: | پترولوژی |
| Language: | Persian |