The Polumir granite: Addititional data on its origin
The Polumir granite is exposed on several localities due to erosion, and its chemical and mineral composition is presented in this paper. It is built of K-feldspar, plagioclase, myrmekite, metasomatic albite, biotite, muscovite and quartz, while apatite, magnetite, monazite, allanite and zircon are...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Faculty of Mining and Geology, Belgrade
2002-01-01
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| Series: | Geološki Anali Balkanskoga Poluostrva |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0350-0608/2002/0350-06080264167V.pdf |
| Summary: | The Polumir granite is exposed on several localities due to erosion, and its chemical and mineral composition is presented in this paper. It is built of K-feldspar, plagioclase, myrmekite, metasomatic albite, biotite, muscovite and quartz, while apatite, magnetite, monazite, allanite and zircon are present as accessory minerals. According to its chemical and mineral composition and rock chemistry (trace and REE elements) the Polumir granite is leucocratic, sin-collisional, with S-type characteristics. It crystallized at temperature of about 650°C and under pressure of 2-4 kbar. Results of isotope analyses (K-Ar method on biotites) indicate that the Polumir granite was formed during the Miocene (14-19 Ma) and it has undergone subsequent weak remobilization afterwards. |
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| ISSN: | 0350-0608 2406-0747 |