Mesoproterozoic paleogeography: Supercontinent and beyond

Pisarevsky, Sergei A.; Elming, Sten-åke; Pesonen, L. J.; Li, Zheng‐Xiang

doi:10.1016/j.precamres.2013.05.014

Cited by 427 publications

(203 citation statements)

References 141 publications

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“…Also, the polydeformed basement to the north of the NBB is marked by intense shear zones at about 1150 Ma, although mylonitic rocks formed in the tectonic process display a systematic sinistral shear sense in this case (Tohver et al 2004a). Pisarevsky et al (2014) also discussed the Paleoproterozoic (Colíder and Avanavero) and Mesoproterozoic (Nova Guarita and Indiavaí) poles from Amazonia. They contested the explanation presented by Bispo- Santos et al (2014b) arguing that displacements between the parts of Amazonia are unlikely, as they would disrupt the linearity of the Ventuary-Tapajós province.…”

Section: Columbia Supercontinentmentioning

confidence: 93%

“…However, different paleogeographic scenarios of Columbia were proposed, mainly due to scarcity of high-quality paleomagnetic poles (e.g. Meert 2002, Zhao et al 2002, 2003, 2004, Pesonen et al 2003, Hou et al 2008a, 2008b, Johansson 2009, Rogers & Santosh 2009, Wingate et al 2009, Yakubchuk 2010, Evans & Mitchell 2011, Zhang et al 2012, Pisarevsky et al 2014among others).…”

Section: Columbia Supercontinentmentioning

confidence: 99%

“…Such period is characterized by a small peak in the formation of juvenile crust, when compared with periods related to the formation of other supercontinents (Hawkesworth et al 2010). Recently, Pisarevsky et al (2014) suggested that the Columbia supercontinent began its agglutination at ~1700 Ma, reaching its maximum area between 1650-1580 Ma. They also argued that Columbia broke-up in two stages.…”

Section: Introductionmentioning

confidence: 99%

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Paleomagnetism of the Amazonian Craton and its role in paleocontinents

et al. 2016

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In the last decade, the participation of the Amazonian Craton on Precambrian supercontinents has been clarified thanks to a wealth of new paleomagnetic data. Paleo to Mesoproterozoic paleomagnetic data favored that the Amazonian Craton joined the Columbia supercontinent at 1780 Ma ago, in a scenario that resembled the South AMerica and BAltica (SAMBA) configuration. Then, the mismatch of paleomagnetic poles within the Craton implied that either dextral transcurrent movements occurred between Guiana and Brazil-Central Shield after 1400 Ma or internal rotation movements of the Amazonia-West African block took place between 1780 and 1400 Ma. The presently available late-Mesoproterozoic paleomagnetic data are compatible with two different scenarios for the Amazonian Craton in the Rodinia supercontinent. The first one involves an oblique collision of the Amazonian Craton with Laurentia at 1200 Ma ago, starting at the present-day Texas location, followed by transcurrent movements, until the final collision of the Amazonian Craton with Baltica at ca. 1000 Ma. The second one requires drifting of the Amazonian Craton and Baltica away from the other components of Columbia after 1260 Ma, followed by clockwise rotation and collision of these blocks with Laurentia along Grenvillian Belt at 1000 Ma. Finally, although the time Amazonian Craton collided with the Central African block is yet very disputed, the few late Neoproterozoic/Cambrian paleomagnetic poles available for the Amazonian Craton, Laurentia and other West Gondwana blocks suggest that the Clymene Ocean separating these blocks has only closed at late Ediacaran to Cambrian times, after the Amazonian Craton rifted apart from Laurentia at ca. 570 Ma.

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Section: Columbia Supercontinentmentioning

confidence: 93%

Section: Columbia Supercontinentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Paleomagnetism of the Amazonian Craton and its role in paleocontinents

et al. 2016

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“…However, there are other recent contributions, mostly based on palaeomagnetic, geochemical and geochronological data, evidently support, with some modification, existence of the Columbia supercontinent and the Dharwar craton as a part of it (e.g. Nilsson et al, 2013;Belica et al, 2014;Pisarevsky et al, 2014;Ravi Shankar et al, 2014). Kumar et al (2012aKumar et al ( , 2012bKumar et al ( , 2015 have also presented paleomagnetic data on the Dharwar giant dyke swarms and suggested different views.…”

Section: (Ii) Precambrian Mafic Dykesmentioning

confidence: 97%

“…Belica et al (2014) have reviewed the drift history of Dharwar craton during Paleoproterozoic times (2.37-1.88 Ga), which provided four new key poles for India (Dharwar). The position of India in the Columbia supercontinent has also been discussed (Belica et al, 2014;Pisarevsky et al, 2014). Radhakrishna et al (2013a) have also provided palaeomagnetic data on the Palaeoproterozoic mafic dykes in the basement along the margins of the Cuddapah basin, southern India.…”

Section: (Ii) Precambrian Mafic Dykesmentioning

confidence: 99%

Kimberlites, Lamproites, Lamprophyres, Carbonatites, other Alkaline Rocks, and Mafic Dykes from the Indian Shield: Glimpses of Research (2012-2016)

Rao

Srivastava²

2016

Proceedings of the Indian National Science Academy

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Major highlights of researches carried out on kimberlites, lamproites, lamprophyres, carbonatites, other alkaline rocks and mafic dykes from the Indian shield during 2012-2016 are presented. New findings involving field mapping, petrology, geochemistry (including high quality mineral based in situ isotopic studies) and geophysics have provided remarkable insights on the mode of their occurrence, timing of emplacement, mineralogy and bulk-rock composition, redox conditions, relative contribution of the lithosphere and asthenosphere, as well as their economic potential. Several large-scale geodynamic aspects such as plume-lithosphere interactions, ancient subduction events, layered structure of the sub-continental lithospheric mantle, spatial extent of the Precambrian large igneous provinces and supercontinent configurations could be unraveled from these studies on deep-mantle derived small-volume magmatic rocks.

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Sensitivity experiments on True Polar Wander

Greff-Lefftz

Besse

2014

Geochem Geophys Geosyst

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Using sensitivity experiments based on the position of subductions and of superplumes, we derive models for the temporal evolution of 3-D mass anomalies in the mantle and compute the associated inertia perturbations and polar wander. We show that although the large length-scale mantle dynamics during the Earth's history may have been dominated by coupled supercontinent-superplume cycles, subductions alone are sufficient to trigger major True Polar Wander (TPW) episodes, or rotation of the whole lithosphere and mantle with respect to the Earth's rotation axis. We present two examples. We speculate that the distribution of continents with respect to the equator on the Earth's surface is driven by episodic subductions during the Wilson cycle: alternating fast subduction girdles around continents and upwellings during the divergence phases, with both reduced or stopped subductions activity around continents and moderate inter-continental subductions during the convergence phases, lead to successive equatorial or polar distributions of continents, both configurations being separated by strong episodes of TPW. Finally, using plate reconstructions and geologic maps, over the period 1100-720 Ma, the period of amalgamation and destruction of the Rodinia supercontinent, we explain with our model the observed large eastward/ westward and poleward/equatorward motions of the rotation axis.

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Mesoproterozoic paleogeography: Supercontinent and beyond

Cited by 427 publications

References 141 publications

Paleomagnetism of the Amazonian Craton and its role in paleocontinents

Paleomagnetism of the Amazonian Craton and its role in paleocontinents

Kimberlites, Lamproites, Lamprophyres, Carbonatites, other Alkaline Rocks, and Mafic Dykes from the Indian Shield: Glimpses of Research (2012-2016)

Sensitivity experiments on True Polar Wander

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