Paleomagnetic Constraints on the Duration of The Australia-Laurentia Connection in the Core of the Nuna Supercontinent
The Australia-Laurentia connection in the Paleoproterozoic to Mesoproterozoic supercontinent Nuna is thought to have initiated by ca. 1.6 Ga when both continents were locked in a proto-SWEAT (southwestern U.S.–East Antarctic) configuration. However, the longevity of that configuration is poorly cons...
| Main Authors: | , , , , , , , , , |
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| Format: | Journal Article |
| Language: | English |
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GEOLOGICAL SOC AMER, INC
2020
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| Subjects: | |
| Online Access: | http://purl.org/au-research/grants/arc/FL150100133 http://hdl.handle.net/20.500.11937/90461 |
| _version_ | 1848765380150951936 |
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| author | Kirscher, Uwe Mitchell, Ross Liu, Yebo Nordsvan, Adam Cox, Grant Pisarevsky, Sergei Wang, Chong Wu, Lei Murphy, J. Brendan Li, Zheng-Xiang |
| author_facet | Kirscher, Uwe Mitchell, Ross Liu, Yebo Nordsvan, Adam Cox, Grant Pisarevsky, Sergei Wang, Chong Wu, Lei Murphy, J. Brendan Li, Zheng-Xiang |
| author_sort | Kirscher, Uwe |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The Australia-Laurentia connection in the Paleoproterozoic to Mesoproterozoic supercontinent Nuna is thought to have initiated by ca. 1.6 Ga when both continents were locked in a proto-SWEAT (southwestern U.S.–East Antarctic) configuration. However, the longevity of that configuration is poorly constrained. Here, we present a new high-quality paleomagnetic pole from the ca. 1.3 Ga Derim Derim sills of northern Australia that suggests Australia and Laurentia were in the same configuration at that time. This new paleopole also supports a connection between Australia and North China and, in conjunction with previously reported data from all continents, indicates that the breakup of Nuna largely occurred between ca. 1.3 and 1.2 Ga. |
| first_indexed | 2025-11-14T11:34:20Z |
| format | Journal Article |
| id | curtin-20.500.11937-90461 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T11:34:20Z |
| publishDate | 2020 |
| publisher | GEOLOGICAL SOC AMER, INC |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-904612023-03-16T07:29:53Z Paleomagnetic Constraints on the Duration of The Australia-Laurentia Connection in the Core of the Nuna Supercontinent Kirscher, Uwe Mitchell, Ross Liu, Yebo Nordsvan, Adam Cox, Grant Pisarevsky, Sergei Wang, Chong Wu, Lei Murphy, J. Brendan Li, Zheng-Xiang Science & Technology Physical Sciences Geology NORTH CHINA CRATON MESOPROTEROZOIC SUPERCONTINENT COLUMBIA SUPERCONTINENT GA RECONSTRUCTION AMERICA BREAKUP LINK The Australia-Laurentia connection in the Paleoproterozoic to Mesoproterozoic supercontinent Nuna is thought to have initiated by ca. 1.6 Ga when both continents were locked in a proto-SWEAT (southwestern U.S.–East Antarctic) configuration. However, the longevity of that configuration is poorly constrained. Here, we present a new high-quality paleomagnetic pole from the ca. 1.3 Ga Derim Derim sills of northern Australia that suggests Australia and Laurentia were in the same configuration at that time. This new paleopole also supports a connection between Australia and North China and, in conjunction with previously reported data from all continents, indicates that the breakup of Nuna largely occurred between ca. 1.3 and 1.2 Ga. 2020 Journal Article http://hdl.handle.net/20.500.11937/90461 10.1130/G47823.1 English http://purl.org/au-research/grants/arc/FL150100133 http://creativecommons.org/licenses/by/4.0/ GEOLOGICAL SOC AMER, INC fulltext |
| spellingShingle | Science & Technology Physical Sciences Geology NORTH CHINA CRATON MESOPROTEROZOIC SUPERCONTINENT COLUMBIA SUPERCONTINENT GA RECONSTRUCTION AMERICA BREAKUP LINK Kirscher, Uwe Mitchell, Ross Liu, Yebo Nordsvan, Adam Cox, Grant Pisarevsky, Sergei Wang, Chong Wu, Lei Murphy, J. Brendan Li, Zheng-Xiang Paleomagnetic Constraints on the Duration of The Australia-Laurentia Connection in the Core of the Nuna Supercontinent |
| title | Paleomagnetic Constraints on the Duration of The Australia-Laurentia Connection in the Core of the Nuna Supercontinent |
| title_full | Paleomagnetic Constraints on the Duration of The Australia-Laurentia Connection in the Core of the Nuna Supercontinent |
| title_fullStr | Paleomagnetic Constraints on the Duration of The Australia-Laurentia Connection in the Core of the Nuna Supercontinent |
| title_full_unstemmed | Paleomagnetic Constraints on the Duration of The Australia-Laurentia Connection in the Core of the Nuna Supercontinent |
| title_short | Paleomagnetic Constraints on the Duration of The Australia-Laurentia Connection in the Core of the Nuna Supercontinent |
| title_sort | paleomagnetic constraints on the duration of the australia-laurentia connection in the core of the nuna supercontinent |
| topic | Science & Technology Physical Sciences Geology NORTH CHINA CRATON MESOPROTEROZOIC SUPERCONTINENT COLUMBIA SUPERCONTINENT GA RECONSTRUCTION AMERICA BREAKUP LINK |
| url | http://purl.org/au-research/grants/arc/FL150100133 http://hdl.handle.net/20.500.11937/90461 |