Mesoproterozoic paleogeography: Supercontinent and beyond
A set of global paleogeographic reconstructions for the 1770–1270 Ma time interval is presented here through a compilation of reliable paleomagnetic data (at the 2009 Nordic Paleomagnetic Workshop in Luleå, Sweden) and geological constraints. Although currently available paleomagnetic results do not...
| Main Authors: | , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Elsevier BV
2013
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/20.500.11937/6875 |
| _version_ | 1848745203241844736 |
|---|---|
| author | Pisarevsky, Sergei Elming, S. Pesonen, L. Li, Zheng-Xiang |
| author_facet | Pisarevsky, Sergei Elming, S. Pesonen, L. Li, Zheng-Xiang |
| author_sort | Pisarevsky, Sergei |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A set of global paleogeographic reconstructions for the 1770–1270 Ma time interval is presented here through a compilation of reliable paleomagnetic data (at the 2009 Nordic Paleomagnetic Workshop in Luleå, Sweden) and geological constraints. Although currently available paleomagnetic results do not rule out the possibility of the formation of a supercontinent as early as ca. 1750 Ma, our synthesis suggests that the supercontinent Nuna/Columbia was assembled by at least ca. 1650–1580 Ma through joining at least two stable continental landmasses formed by ca. 1.7 Ga: West Nuna (Laurentia, Baltica and possibly India) and East Nuna (North, West and South Australia, Mawson craton of Antarctica and North China). It is possible, but not convincingly proven, that Siberia and Congo/São Francisco were combined as a third rigid continental entity and collided with Nuna at ca.1500 Ma. Nuna is suggested to have broken up at ca. 1450–1380 Ma. West Nuna, Siberia and possibly Congo/São Francisco were rigidly connected until after 1270 Ma. East Nuna was deformed during the breakup, and North China separated from it. There is currently no strong evidence indicating that Amazonia, West Africa and Kalahari were parts of Nuna. |
| first_indexed | 2025-11-14T06:13:37Z |
| format | Journal Article |
| id | curtin-20.500.11937-6875 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:13:37Z |
| publishDate | 2013 |
| publisher | Elsevier BV |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-68752019-02-19T04:26:59Z Mesoproterozoic paleogeography: Supercontinent and beyond Pisarevsky, Sergei Elming, S. Pesonen, L. Li, Zheng-Xiang Supercontinent Paleomagnetism Global Paleogeography Mesoproterozoic A set of global paleogeographic reconstructions for the 1770–1270 Ma time interval is presented here through a compilation of reliable paleomagnetic data (at the 2009 Nordic Paleomagnetic Workshop in Luleå, Sweden) and geological constraints. Although currently available paleomagnetic results do not rule out the possibility of the formation of a supercontinent as early as ca. 1750 Ma, our synthesis suggests that the supercontinent Nuna/Columbia was assembled by at least ca. 1650–1580 Ma through joining at least two stable continental landmasses formed by ca. 1.7 Ga: West Nuna (Laurentia, Baltica and possibly India) and East Nuna (North, West and South Australia, Mawson craton of Antarctica and North China). It is possible, but not convincingly proven, that Siberia and Congo/São Francisco were combined as a third rigid continental entity and collided with Nuna at ca.1500 Ma. Nuna is suggested to have broken up at ca. 1450–1380 Ma. West Nuna, Siberia and possibly Congo/São Francisco were rigidly connected until after 1270 Ma. East Nuna was deformed during the breakup, and North China separated from it. There is currently no strong evidence indicating that Amazonia, West Africa and Kalahari were parts of Nuna. 2013 Journal Article http://hdl.handle.net/20.500.11937/6875 10.1016/j.precamres.2013.05.014 Elsevier BV fulltext |
| spellingShingle | Supercontinent Paleomagnetism Global Paleogeography Mesoproterozoic Pisarevsky, Sergei Elming, S. Pesonen, L. Li, Zheng-Xiang Mesoproterozoic paleogeography: Supercontinent and beyond |
| title | Mesoproterozoic paleogeography: Supercontinent and beyond |
| title_full | Mesoproterozoic paleogeography: Supercontinent and beyond |
| title_fullStr | Mesoproterozoic paleogeography: Supercontinent and beyond |
| title_full_unstemmed | Mesoproterozoic paleogeography: Supercontinent and beyond |
| title_short | Mesoproterozoic paleogeography: Supercontinent and beyond |
| title_sort | mesoproterozoic paleogeography: supercontinent and beyond |
| topic | Supercontinent Paleomagnetism Global Paleogeography Mesoproterozoic |
| url | http://hdl.handle.net/20.500.11937/6875 |