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Paleomagnetic studies of rapakivi complexes in the Fennoscandian shield Implications to the origin of Proterozoic massif-type anorthosite magmatism

文献类型：期刊论文

作者Salminen, Johanna2,4; Elming, Sten-Ake3; Mertanen, Satu2; Wang, Chong4,5; Almqvist, Bjarne6; Moakhar, Mohsen Oveisy1
刊名PRECAMBRIAN RESEARCH
出版日期2021-10-01
卷号365页码:30
关键词Paleomagnetism Massif anorthosites Rapakivi Proterozoic, Baltica, Nuna supercontinent
ISSN号0301-9268
DOI10.1016/j.precamres.2021.106406
英文摘要Paleomagnetic studies have been performed on five rapakivi related complexes in Sweden and Finland. Poles of varying quality have been defined and the majority of the similar to 1640-1497 Ma poles are clustering on low latitudinal positions. By combining data from similar to 1500 Ma intrusions a new high-quality pole (Plat: 13 degrees N; Plon: 190 degrees E; A(95): 11 degrees, K: 14) for Baltica has been defined. Tectonic reconstructions, on the basis of the new data and previously published high-quality data, indicate that Baltica experienced stable low latitude to equatorial positions during 1640-1470 Ma, temporally coinciding with globally pronounced rapakivi-anorthosite magmatism. Our study argues against single hotspot source for similar to 1640-1620 Ma, similar to 1590-1520 Ma, and 1470-1410 Ma rapakivianorthosites, but supports a model of large-scale superswell under a stationary low-latitude position of supercontinent Nuna for the origin of rapakivi-anorthosite magmatism. However, a possibility for convergent tectonism as the origin cannot be ruled out.
WOS关键词A-TYPE GRANITES ; WOLF RIVER BATHOLITH ; EAST EUROPEAN CRATON ; U-PB GEOCHRONOLOGY ; TRUE POLAR WANDER ; GRENVILLE PROVINCE ; AMAZONIAN CRATON ; ANOROGENIC MAGMATISM ; BASIC INTRUSIONS ; CENTRAL SWEDEN
资助项目Academy of Finland[319277] ; Swedish Research Council
WOS研究方向Geology
语种英语
WOS记录号WOS:000703586700018
出版者ELSEVIER
资助机构Academy of Finland ; Academy of Finland ; Swedish Research Council ; Swedish Research Council ; Academy of Finland ; Academy of Finland ; Swedish Research Council ; Swedish Research Council ; Academy of Finland ; Academy of Finland ; Swedish Research Council ; Swedish Research Council ; Academy of Finland ; Academy of Finland ; Swedish Research Council ; Swedish Research Council
源URL[http://ir.iggcas.ac.cn/handle/132A11/102709]  
专题地质与地球物理研究所_岩石圈演化国家重点实验室
通讯作者Salminen, Johanna
作者单位1.Razi Univ, Sci Fac, Phys Grp, Kermanshah, Iran
2.Geol Survey Finland, POB 96, FI-02151 Espoo, Finland
3.Lulea Univ Technol, Dept Civil Environm & Nat Resources Engn, S-97187 Lulea, Sweden
4.Univ Helsinki, Dept Geosci & Geog, POB 64, Helsinki 00014, Finland
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing 100029, Peoples R China
6.Uppsala Univ, Dept Earths Sci, S-75236 Uppsala, Sweden
推荐引用方式
GB/T 7714		 Salminen, Johanna,Elming, Sten-Ake,Mertanen, Satu,et al. Paleomagnetic studies of rapakivi complexes in the Fennoscandian shield Implications to the origin of Proterozoic massif-type anorthosite magmatism[J]. PRECAMBRIAN RESEARCH,2021,365:30.
APA Salminen, Johanna,Elming, Sten-Ake,Mertanen, Satu,Wang, Chong,Almqvist, Bjarne,&Moakhar, Mohsen Oveisy.(2021).Paleomagnetic studies of rapakivi complexes in the Fennoscandian shield Implications to the origin of Proterozoic massif-type anorthosite magmatism.PRECAMBRIAN RESEARCH,365,30.
MLA Salminen, Johanna,et al."Paleomagnetic studies of rapakivi complexes in the Fennoscandian shield Implications to the origin of Proterozoic massif-type anorthosite magmatism".PRECAMBRIAN RESEARCH 365(2021):30.

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来源：地质与地球物理研究所

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