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Calcic Garnets as a Source of Information on the Age of Ultramafic Alkaline Intrusions in the Kola Magmatic Province. / Stifeeva, M. V.; Salnikova, E. B.; Arzamastsev, A. A.; Kotov, A. B.; Grozdev, V. Yu.

In: Petrology, Vol. 28, No. 1, 01.01.2020, p. 62-72.

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Stifeeva, M. V. ; Salnikova, E. B. ; Arzamastsev, A. A. ; Kotov, A. B. ; Grozdev, V. Yu. / Calcic Garnets as a Source of Information on the Age of Ultramafic Alkaline Intrusions in the Kola Magmatic Province. In: Petrology. 2020 ; Vol. 28, No. 1. pp. 62-72.

BibTeX

@article{68f57c7b91f949fe90257e10123e9ee2,
title = "Calcic Garnets as a Source of Information on the Age of Ultramafic Alkaline Intrusions in the Kola Magmatic Province",
abstract = "Abstract: The paper presents data of U–Pb (ID-TIMS) geochronologic studies of schorlomite–morimotoite–andradite garnet from the Vuoriyarvi, Sallanlatva, and Salmagorsky massifs in the Kola alkaline province. The garnet is relatively rich in U (5–9 ppm) and poor in common Pb (Pbc/Pbt = 0.2–0.7), contains U as an isomorphous component, and does not host inclusions of any U-bearing minerals. The U–Pb ages of garnet from the various rocks of the massifs (373 ± 2 to 377 ± 1 Ma) are mutually consistent and correspond to the main pulse of alkaline ultramafic magmatism in the Kola province (360–380 Ma). The geochronologic data indicate that the U–Pb system of schorlomite–morimotoite–andradite garnet is stable and can be utilized as a reliable geochronometer for alkaline ultramafic rocks.",
keywords = "alkaline ultramafic intrusions, garnet, ID-TIMS, Kola magmatic province, U–Pb",
author = "Stifeeva, {M. V.} and Salnikova, {E. B.} and Arzamastsev, {A. A.} and Kotov, {A. B.} and Grozdev, {V. Yu}",
note = "Funding Information: This study was supported by the Russian Foundation for Basic Research, project nos. 17-05-00912 and 18-55-18011. Publisher Copyright: {\textcopyright} 2020, Pleiades Publishing, Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",
year = "2020",
month = jan,
day = "1",
doi = "10.1134/S0869591120010063",
language = "English",
volume = "28",
pages = "62--72",
journal = "Petrology",
issn = "0869-5911",
publisher = "МАИК {"}Наука/Интерпериодика{"}",
number = "1",

}

RIS

TY - JOUR

T1 - Calcic Garnets as a Source of Information on the Age of Ultramafic Alkaline Intrusions in the Kola Magmatic Province

AU - Stifeeva, M. V.

AU - Salnikova, E. B.

AU - Arzamastsev, A. A.

AU - Kotov, A. B.

AU - Grozdev, V. Yu

N1 - Funding Information: This study was supported by the Russian Foundation for Basic Research, project nos. 17-05-00912 and 18-55-18011. Publisher Copyright: © 2020, Pleiades Publishing, Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/1/1

Y1 - 2020/1/1

N2 - Abstract: The paper presents data of U–Pb (ID-TIMS) geochronologic studies of schorlomite–morimotoite–andradite garnet from the Vuoriyarvi, Sallanlatva, and Salmagorsky massifs in the Kola alkaline province. The garnet is relatively rich in U (5–9 ppm) and poor in common Pb (Pbc/Pbt = 0.2–0.7), contains U as an isomorphous component, and does not host inclusions of any U-bearing minerals. The U–Pb ages of garnet from the various rocks of the massifs (373 ± 2 to 377 ± 1 Ma) are mutually consistent and correspond to the main pulse of alkaline ultramafic magmatism in the Kola province (360–380 Ma). The geochronologic data indicate that the U–Pb system of schorlomite–morimotoite–andradite garnet is stable and can be utilized as a reliable geochronometer for alkaline ultramafic rocks.

AB - Abstract: The paper presents data of U–Pb (ID-TIMS) geochronologic studies of schorlomite–morimotoite–andradite garnet from the Vuoriyarvi, Sallanlatva, and Salmagorsky massifs in the Kola alkaline province. The garnet is relatively rich in U (5–9 ppm) and poor in common Pb (Pbc/Pbt = 0.2–0.7), contains U as an isomorphous component, and does not host inclusions of any U-bearing minerals. The U–Pb ages of garnet from the various rocks of the massifs (373 ± 2 to 377 ± 1 Ma) are mutually consistent and correspond to the main pulse of alkaline ultramafic magmatism in the Kola province (360–380 Ma). The geochronologic data indicate that the U–Pb system of schorlomite–morimotoite–andradite garnet is stable and can be utilized as a reliable geochronometer for alkaline ultramafic rocks.

KW - alkaline ultramafic intrusions

KW - garnet

KW - ID-TIMS

KW - Kola magmatic province

KW - U–Pb

UR - http://www.scopus.com/inward/record.url?scp=85083255556&partnerID=8YFLogxK

U2 - 10.1134/S0869591120010063

DO - 10.1134/S0869591120010063

M3 - Article

AN - SCOPUS:85083255556

VL - 28

SP - 62

EP - 72

JO - Petrology

JF - Petrology

SN - 0869-5911

IS - 1

ER -

ID: 69864783