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- Title
Oxygen Isotope Composition of Zircons from the Talnakh Economic Intrusion of the Noril'sk Province: First Data.
- Authors
Badanina, I. Yu.; Belousova, E. A.; Malitch, K. N.; Sluzhenikin, S. F.
- Abstract
This study presents the first results of oxygen isotope analyses (δ18O) collected on zircons from the Talnakh economic intrusion within the Noril'sk province. Zircons from gabbro-diorite, gabbroic rocks of the layered series and plagioclase-bearing wehrlite have similar mantle-like mean δ18O values (5.39 ± 0.48‰; 5.63 ± 0.48‰ and of 5.28 ± 0.34‰, respectively), which differ from δ18O in zircons from sulfide-bearing melanocratic troctolite with taxitic texture in the lower part of the intrusion (mean δ18O = 6.50 ± 0.98‰). These new oxygen isotope data support (i) the mantle-derived origin of the primary magma(s), parental to the Talnakh intrusion, and (ii) possible involvement of a crustal component during the formation of sulfide-bearing taxitic-textured rocks.
- Subjects
FIRST Data Corp.; OXYGEN isotopes; ZIRCON; HELIUM isotopes; ISOTOPIC analysis; OXYGEN analysis; PROVINCES
- Publication
Doklady Earth Sciences, 2019, Vol 489, Issue 1, p1322
- ISSN
1028-334X
- Publication type
Article
- DOI
10.1134/S1028334X19110102