Isotopic age and heterogeneous sources of gabbro‒anorthosites from the Patchemvarek massif, Kola Peninsula

Isotopic age and heterogeneous sources of gabbro‒anorthosites from the Patchemvarek massif, Kola Peninsula

New U‒Pb (SHRIMP II) data on the age (2661.8 ± 7.1 Ma) and isotopic (Sm‒Nd) composition of the Patchemvarek gabbro‒anorthosite massif located in the junction zone between the Neoarchean Kolmozero-Voron’ya greenstone belt and Keivy paragneiss structure are discussed. The established age and geologica...

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Bibliographic Details
Published in:Doklady earth sciences Vol. 469; no. 1; pp. 716 - 721
Main Authors: Vrevsky, A. B., Lvov, A. P.
Format: Journal Article
Language:English
Published: Moscow Pleiades Publishing 01-07-2016
Subjects:
Earth and Environmental Science
Earth Sciences
Geochemistry
Online Access:Get full text
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Summary:New U‒Pb (SHRIMP II) data on the age (2661.8 ± 7.1 Ma) and isotopic (Sm‒Nd) composition of the Patchemvarek gabbro‒anorthosite massif located in the junction zone between the Neoarchean Kolmozero-Voron’ya greenstone belt and Keivy paragneiss structure are discussed. The established age and geological‒tectonic position of gabbro‒anorthosites allow the prognostic metallogenic estimate of Ti‒V‒Fe mineralization to be extended to the entire Kolmozero-Voron’ya‒Keivy infrastructural zone of the Kola‒Norwegian province of the Fennoscandian shield.
ISSN:1028-334X
1531-8354
DOI:10.1134/S1028334X16070163