| Autor: |
M. S. Myshenkova, V. A. Zaitsev, S. Thomson, A. V. Latyshev, V. S. Zakharov, T. E. Bagdasaryan, R. V. Veselovsky |
| Jazyk: |
English<br />Russian |
| Rok vydání: |
2020 |
| Předmět: |
|
| Zdroj: |
Геодинамика и тектонофизика, Vol 11, Iss 1, Pp 75-87 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
2078-502X |
| DOI: |
10.5800/GT-2020-11-1-0464 |
| Popis: |
We present the first results of fission-track dating of apatite monofractions from two rock samples taken from the Southern carbonatite massif of the world’s largest alkaline ultrabasic Guli pluton (~250 Ma), located within the Maymecha-Kotuy region of the Siberain Traps. Based on the apatite fission-track data and computer modeling, we propose two alternative model of the Guli pluton's tectonothermal history. The models suggest (1) rapid post-magmatic cooling of the studied rocks in hypabyssal conditions at depth about 1.5 km, or (2) their burial under a 2-3 km thick volcano-sedimentary cover and reheating above 110°C, followed by uplift and exhumation ca. 218 Ma. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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