We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The First U-Pb Isotopic Systematics of Natural Aeschynite and Coexisting Monazite.
- Authors
Ronkin, Yu. L.; Murzin, V. V.; Gerdes, A.; Maslov, A. V.; Varlamov, D. V.
- Abstract
We have been the first to study in situ the U-Pb isotopic system of aeschynite identified in the gold-bearing magnetite-chlorite-dolomite rocks of the Karabash serpentine massif in the Southern Urals. In the concordia diagram, the U-Pb LA-ICP-MS data on aeschynite are characterized by a considerable discordance, which is consistent with the regression line, the lower crossing of which with the concordia corresponds to an age of 298 ± 18 Ma, whereas the figurative ellipses of coexisting monazite reveal an almost concordant cluster corresponding to the U-Pb age of 317.3 ± 3.3 Ma. It has been established that the closure temperature of the aeschynite system is lower than that of the coexisting monazite.
- Subjects
ISOTOPIC analysis; URANIUM-lead dating; MONAZITE; MAGNETITE crystals; CLUSTER sampling
- Publication
Doklady Earth Sciences, 2018, Vol 478, Issue 1, p82
- ISSN
1028-334X
- Publication type
Article
- DOI
10.1134/S1028334X18010178