Fragments of Paleoproterozoic Large Igneous Provinces in Northern Fennoscandia › Научные исследования в СПбГУ

Standard

Fragments of Paleoproterozoic Large Igneous Provinces in Northern Fennoscandia : Baddeleyite U–Pb Age Data for Mafic Dykes and Sills. / Salnikova, E. B.; Veselovskiy, R. V.; Arzamastsev, A. A.; Erofeeva, K. G.

в: Doklady Earth Sciences, Том 491, № 2, 01.04.2020, стр. 227-230.

Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование

BibTeX

@article{e790bb9e573b4bc1aa1387ca3967d477,

title = "Fragments of Paleoproterozoic Large Igneous Provinces in Northern Fennoscandia: Baddeleyite U–Pb Age Data for Mafic Dykes and Sills",

abstract = "Abstract: New data on the age of dolerite dikes in the NE part of the Kola province of the Fennoscandinavian shield and the picrodolerite sills that cut the dikes are presented. The results of U–Pb ID-TIMS baddeleyite dating indicate that dolerites were formed between 2508 ± 6 and 2513 ± 16 Ma ago, simultaneously with the intrusions of the Monchegorsk group. A comparison of the composition of the dolerites studied with dykes of the same age found in other Archean cratons shows their significant similarity and suggests their formation at the same large magmatic province. The age of baddeleyite from the picrodolerites sills at 2403 ± 12 Ma ago indicates an event of basic magmatism that was not previously established in this part of the Fennoscandinavian shield. It is possible that, along with dolerite dykes with an age of 2405 Ma and komatiites of the Vetreny belt of the Karelian craton, sills of the Kola province are a component of a unified large magmatic event.",

keywords = "baddeleyite, Fennoscandia, mafic dykes, U–Pb dating",

author = "Salnikova, {E. B.} and Veselovskiy, {R. V.} and Arzamastsev, {A. A.} and Erofeeva, {K. G.}",

note = "Funding Information: This study was supported by the Russian Science Foundation, project no. 16-17–10260-P. Publisher Copyright: {\textcopyright} 2020, Pleiades Publishing, Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

year = "2020",

month = apr,

day = "1",

doi = "10.1134/S1028334X20040145",

language = "English",

volume = "491",

pages = "227--230",

journal = "Doklady Earth Sciences",

issn = "1028-334X",

publisher = "МАИК {"}Наука/Интерпериодика{"}",

number = "2",

}

RIS

TY - JOUR

T1 - Fragments of Paleoproterozoic Large Igneous Provinces in Northern Fennoscandia

T2 - Baddeleyite U–Pb Age Data for Mafic Dykes and Sills

AU - Salnikova, E. B.

AU - Veselovskiy, R. V.

AU - Arzamastsev, A. A.

AU - Erofeeva, K. G.

N1 - Funding Information: This study was supported by the Russian Science Foundation, project no. 16-17–10260-P. Publisher Copyright: © 2020, Pleiades Publishing, Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/4/1

Y1 - 2020/4/1

N2 - Abstract: New data on the age of dolerite dikes in the NE part of the Kola province of the Fennoscandinavian shield and the picrodolerite sills that cut the dikes are presented. The results of U–Pb ID-TIMS baddeleyite dating indicate that dolerites were formed between 2508 ± 6 and 2513 ± 16 Ma ago, simultaneously with the intrusions of the Monchegorsk group. A comparison of the composition of the dolerites studied with dykes of the same age found in other Archean cratons shows their significant similarity and suggests their formation at the same large magmatic province. The age of baddeleyite from the picrodolerites sills at 2403 ± 12 Ma ago indicates an event of basic magmatism that was not previously established in this part of the Fennoscandinavian shield. It is possible that, along with dolerite dykes with an age of 2405 Ma and komatiites of the Vetreny belt of the Karelian craton, sills of the Kola province are a component of a unified large magmatic event.

AB - Abstract: New data on the age of dolerite dikes in the NE part of the Kola province of the Fennoscandinavian shield and the picrodolerite sills that cut the dikes are presented. The results of U–Pb ID-TIMS baddeleyite dating indicate that dolerites were formed between 2508 ± 6 and 2513 ± 16 Ma ago, simultaneously with the intrusions of the Monchegorsk group. A comparison of the composition of the dolerites studied with dykes of the same age found in other Archean cratons shows their significant similarity and suggests their formation at the same large magmatic province. The age of baddeleyite from the picrodolerites sills at 2403 ± 12 Ma ago indicates an event of basic magmatism that was not previously established in this part of the Fennoscandinavian shield. It is possible that, along with dolerite dykes with an age of 2405 Ma and komatiites of the Vetreny belt of the Karelian craton, sills of the Kola province are a component of a unified large magmatic event.

KW - baddeleyite

KW - Fennoscandia

KW - mafic dykes

KW - U–Pb dating

UR - http://www.scopus.com/inward/record.url?scp=85086408061&partnerID=8YFLogxK

U2 - 10.1134/S1028334X20040145

DO - 10.1134/S1028334X20040145

M3 - Article

AN - SCOPUS:85086408061

VL - 491

SP - 227

EP - 230

JO - Doklady Earth Sciences

JF - Doklady Earth Sciences

SN - 1028-334X

IS - 2

ER -

ID: 69864463

Fragments of Paleoproterozoic Large Igneous Provinces in Northern Fennoscandia: Baddeleyite U–Pb Age Data for Mafic Dykes and Sills

Standard

Harvard

APA

Vancouver

Author

BibTeX

RIS