Email this article The paleoproterozoic Kandalaksha Anorthosite Massif: New U–Pb (ID–TIMS) data and geochemical features of zircon
- Authors: Steshenko E.N.1,2, Nikolaev A.I.3,2, Bayanova T.B.1, Drogobuzhskaya S.V.3,2, Chashchin V.V.1, Serov P.A.1, Lyalina L.M.1,2, Novikov A.I.3
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Affiliations:
- Geological Institute, Kola Science Center
- Murmansk State Technical University
- Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center
- Issue: Vol 477, No 2 (2017)
- Pages: 1454-1457
- Section: Geochemistry
- URL: https://ogarev-online.ru/1028-334X/article/view/191693
- DOI: https://doi.org/10.1134/S1028334X17120194
- ID: 191693
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Abstract
New U–Pb and Sm–Nd isotope data have been obtained in the Kandalaksha–Kolvitsa zone, Baltic Shield, on accessory zircon and rutile, along with whole-rock and secondary metamorphic minerals. Isotope U–Pb age of single zircon grains from metagabbro of the Kandalaksha Anorthosite Massif is 2453.5 ± 4.8 Ma, which is close to the U–Pb age of zircon from the Kolvitsa Massif metagabbro (2448 ± 5 Ma). For the first time, REEs in zircon grains of the Kandalaksha metagabbro have been analyzed and the results have been plotted. Ti-in-zircon thermometry has been applied using LA–ICP–MS: it yielded an average temperature of zircon crystallization of 844°C. The isotope and geochemical new data obtained indicate a magmatic genesis of the zircon crystals studied.
About the authors
E. N. Steshenko
Geological Institute, Kola Science Center; Murmansk State Technical University
Author for correspondence.
Email: steshenko@geoksc.apatity.ru
Russian Federation, Apatity; Murmansk
A. I. Nikolaev
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center; Murmansk State Technical University
Email: drogo_sv@chemy.kolasc.net.ru
Russian Federation, Apatity; Murmansk
T. B. Bayanova
Geological Institute, Kola Science Center
Email: drogo_sv@chemy.kolasc.net.ru
Russian Federation, Apatity
S. V. Drogobuzhskaya
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center; Murmansk State Technical University
Author for correspondence.
Email: drogo_sv@chemy.kolasc.net.ru
Russian Federation, Apatity; Murmansk
V. V. Chashchin
Geological Institute, Kola Science Center
Email: drogo_sv@chemy.kolasc.net.ru
Russian Federation, Apatity
P. A. Serov
Geological Institute, Kola Science Center
Email: drogo_sv@chemy.kolasc.net.ru
Russian Federation, Apatity
L. M. Lyalina
Geological Institute, Kola Science Center; Murmansk State Technical University
Email: drogo_sv@chemy.kolasc.net.ru
Russian Federation, Apatity; Murmansk
A. I. Novikov
Tananaev Institute of Chemistry and Technology of Rare Elements and Mineral Raw Materials, Kola Science Center
Email: drogo_sv@chemy.kolasc.net.ru
Russian Federation, Apatity
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