U‐Pb zircon dating of metaigneous rocks from the Nordbreen Nappe of Svalbard’s Ny‐Friesland suggests their affinity to Northeast Greenland
U‐Pb zircon dating of metaigneous rocks from the Nordbreen Nappe of Svalbard’s Ny‐Friesland suggests their affinity to Northeast Greenland
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对斯瓦尔巴群岛 Ny弗里斯兰北布林推覆岩的变火成岩进行 U-Pb 锆石测年表明它们与格陵兰岛东北部有密切关系
DOI:
10.1111/ter.12422
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发表时间:
2019
期刊:
影响因子:
2.4
通讯作者:
Mikuš, Tomáš
中科院分区:
文献类型:
--
作者:
Bazarnik, Jakub;Majka, Jarosław;McClelland, William C.;Strauss, Justin V.;Kośmińska, Karolina;Piepjohn, Karsten;Elvevold, Synnøve;Czupyt, Zbigniew;Mikuš, Tomáš
SIMS U‐Pb zircon dating of metaigneous rocks of the Nordbreen Nappe from the West Ny‐Friesland terrane (Eastern Basement Province of Svalbard) yields crystallization ages of 1,761 ± 4 Ma for a felsic metatuff and 1,373 ± 4 Ma for a metagabbro dyke. The Palaeoproterozoic age of the metatuff is similar to previously obtained ages for various felsic rocks from the study area, whereas the Mesoproterozoic age of the metagabbro has not been thus far documented on Svalbard. However, a similar age pattern has been reported from Northeast Greenland. Therefore, we conclude that the West Ny‐Friesland terrane can be correlated with age equivalent units of Northeast Greenland. We also explore similarities and dissimilarities between the study area and other terranes of Svalbard and speculate on regional‐scale correlations. Together, the presented new ages provide critical piercing points in palaeogeographic reconstructions of the relatively poorly understood circum‐Arctic region.
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DOI:
10.1086/677902
发表时间:
2014
期刊:
The Journal of Geology
影响因子:
--
作者:
S. Malone;W. McClelland;W. von Gosen;K. Piepjohn
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K. Piepjohn
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1.4
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1999
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DOI:
--
发表时间:
1999
期刊:
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作者:
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