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Nuna

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Journal Article
Journal: Geology
Published: 25 September 2018
Geology (2018) 46 (11): 959-962.
...Amaury Pourteau; Matthijs A. Smit; Zheng-Xiang Li; William J. Collins; Adam R. Nordsvan; Silvia Volante; Jiangyu Li Abstract The precise timing and nature of the final assembly of the supercontinent Nuna, marked by the collision of proto-Australia and Laurentia (North America) between 1.65 and 1.50...
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Journal Article
Journal: Geology
Published: 17 January 2018
Geology (2018) 46 (3): 251-254.
..., the Georgetown Inlier had completely separated from Laurentia, and ca. 1600 Ma collided with Australia during supercontinent Nuna amalgamation. Another provenance change in the Georgetown Inlier is evident in the postorogenic Inorunie Group ( Fig. 2 ), which has detrital zircon age spectra peaks of 1740, 1600...
FIGURES
Series: Geological Society, London, Special Publications
Published: 01 January 2017
DOI: 10.1144/SP457.11
EISBN: 9781786203380
... the missing clue to the continuation of the amalgamated blocks with respect to India in the Nuna reconstruction. The studied granites are from the Bathani Volcano Sedimentary sequence (BVSs) located on the northern fringe of the Chotanagpur Granitic and Gneissic Complex (CGGC). Acharyya (2003) clubbed...
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Journal Article
Journal: Geology
Published: 01 March 2016
Geology (2016) 44 (3): e383.
Journal Article
Journal: Geology
Published: 01 February 2016
Geology (2016) 44 (2): e380.
Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP424.2
EISBN: 9781862399563
... to conceptualize the evolution of the Australian plate during the Proterozoic ( Betts & Giles 2006 ; Cawood & Korsch 2008 ; Li & Evans 2011 ). In this paper we show how Australia records rapid continental amalgamation during the assembly of Nuna Supercontinent and outline the geological events...
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Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP424.5
EISBN: 9781862399563
... Numerous reconstructions for an assembled Nuna, founded on palaeomagnetic ( Rogers & Santosh 2002 ; Evans & Mitchell 2011 ; Zhang et al. 2012 ) or geological ( Bispo-Santos et al. 2008 ; Meert 2002 ; Pesonen et al. 2003 ) data, or their combination ( Pisarevsky et...
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Series: Geological Society, London, Special Publications
Published: 01 January 2016
DOI: 10.1144/SP424.3
EISBN: 9781862399563
... Nuna (a.k.a. Columbia) supercontinent. Supercontinents are assemblies that contain a large proportion of the Earth’s continental blocks (e.g. Rogers & Santosh 2004 ). They have played a key role in the evolution of the Earth’s surface at least since Proterozoic times ( Evans & Pisarevsky...
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Journal Article
Journal: Geology
Published: 01 September 2015
Geology (2015) 43 (9): 759-762.
...Jacob A. Mulder; Jacqueline A. Halpin; Nathan R. Daczko Abstract Most recent paleogeographic reconstructions of the supercontinent Nuna juxtapose the North Australian craton, Mawson continent (South Australia–East Antarctica), and Laurentia between 1.6 Ga and 1.3 Ga but differ in their relative...
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Journal Article
Journal: Geology
Published: 01 May 2011
Geology (2011) 39 (5): 443-446.
... a quantitative reconstruction of the core of the Nuna supercontinent at 1.9–1.3 Ga. In our model, the present southern and eastern margins of Siberia juxtapose directly adjacent to, respectively, the arctic margin of Laurentia and the Uralian margin of Baltica. Consistent tectonostratigraphic records...
FIGURES
Journal Article
Journal: Geology
Published: 01 December 2010
Geology (2010) 38 (12): 1099-1102.
... China craton, or Antarctica. If the detrital zircons were far-traveled, this is a new constraint for viable reconstructions of the Nuna supercontinent. However, given the high percentage of pre–1.8 Ga zircons, unexposed proximal basement sources are more likely, resulting in a model by which Vishnu...
FIGURES
Series: AAPG Memoir
Published: 01 January 1980
DOI: 10.1306/M30410C12
EISBN: 9781629811840
Image
Northeastern Australian <b>Nuna</b> suture. A: Present-day crustal structure adapt...
in > Geology
Published: 25 September 2018
Figure 4. Northeastern Australian Nuna suture. A: Present-day crustal structure adapted from Korsch et al.’s (2012) geophysical imaging and modeling. Interpreted Nuna 1.6 Ga suture separates an upper plate (Australia) with east-dipping thrusts, and a lower plate (Laurentia) with west-dipping
Image
Configuration and paleogeographic position of the Columbia (<b>Nuna</b>) supercont...
Published: 01 May 2015
Fig. 8 Configuration and paleogeographic position of the Columbia (Nuna) supercontinent soon after assembly at ~1740 Ma ( Zhang et al., 2012 ). Note location of sediment-hosted copper mineralization at Udokan and the Repparfjord area in continental masses Siberia and Baltica, respectively
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Sedimentary succession and geochemical records of Axel Heiberg Island, <b>Nuna</b>...
in > Geology
Published: 01 May 2015
Figure 2. Sedimentary succession and geochemical records of Axel Heiberg Island, Nunavut, Canada. A: Stratigraphy and bio- and lithostratigraphy, paleoceanographic events, and lithology. B: Total organic carbon (TOC, %). C: U-Pb geochronology ages (red dashed lines indicate absolute age tie points
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Tentative reconstruction of the Tarim craton in the Columbia (<b>Nuna</b>) superco...
Published: 01 May 2015
Figure 10. Tentative reconstruction of the Tarim craton in the Columbia (Nuna) supercontinent modified after the paleomagnetism-based global reconstruction by S.H. Zhang et al. (2012) . Note the presence of two accretion-to-collisional interior orogens along the northern and southern margins
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Reconstruction of the supercontinent <b>Nuna</b> at 1600 Ma after Pisarevsky  et a...
Published: 01 June 2014
F ig . 4. Reconstruction of the supercontinent Nuna at 1600 Ma after Pisarevsky et al. ( 2014 ), showing the Great Proterozoic Accretionary Orogen.
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Reconstruction of core of <b>Nuna</b> supercontinent. A: Quality-filtered 1.9–1.3 ...
in > Geology
Published: 01 May 2011
Figure 1. Reconstruction of core of Nuna supercontinent. A: Quality-filtered 1.9–1.3 Ga paleomagnetic poles from Siberia, and coeval results from Laurentia and Baltica (Table DR1; see footnote 1 ), color-coded by craton (lighter shades represent ages prior to final cratonization), in present
Image
Figure  2. Map showing location of Beaver Pond site, Ellesmere Island, <b>Nuna</b>...
Published: 01 August 2008
Figure 2. Map showing location of Beaver Pond site, Ellesmere Island, Nunavut (78°33′N, 82°25′W). This Pliocene site has yielded the remains of Dipoides sp. along with Dipoides woodcuttings
Journal Article
Journal: GSA Bulletin
Published: 01 November 2013
GSA Bulletin (2013) 125 (11-12): 1735-1751.
..., the search for its predecessor Nuna (a.k.a. Hudsonland or Columbia) is only now reaching a stage of global synthesis between tectonostratigraphic and paleomagnetic data. According to most definitions, Nuna assembled at 1.9–1.75 Ga, or perhaps as late as 1.6 Ga, and fragmented during the interval 1.5–1.2 Ga...
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