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northern Laurentia

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Journal Article
Journal: GSA Bulletin
Published: 01 July 2012
GSA Bulletin (2012) 124 (7-8): 1155–1168.
... craton–like, Taltson-Thelon orogen, and Wopmay orogen sources. Following the dichotomy of detrital zircon age spectra presented by Cambrian samples from Mackenzie Mountains and Great Bear Lake south allows subdivision of other published detrital zircon ages from across northern Laurentia into two groups...
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Journal Article
Journal: GSA Bulletin
Published: 07 August 2024
GSA Bulletin (2025) 137 (1-2): 495–521.
... in northern Canada ( Corrigan et al., 2009 ; Corrigan and Van Rooyen, 2023 ; Weller and St-Onge, 2017 ) probably did not terminate in southern Laurentia as is commonly supposed ( Whitmeyer and Karlstrom, 2007 ) but continued westward into proto-Australia ( Fig. 1 ). If so, any such Australian orogen...
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Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 13 June 2021
Lithosphere (2021) 2021 (1): 7866155.
... 2021 The autochthonous Yukon block of northwestern Laurentia (Figure 1 (b)) forms a distinct lithospheric domain underlying most of northern Yukon, from the Northwest Territories to Alaskan borders [ 36 ]; this region represents a high-standing crustal block that controlled depositional...
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Journal Article
Journal: Geology
Published: 26 March 2021
Geology (2021) 49 (7): 779–783.
... eastern margin was punctuated by short-lived extension that generated the Midcontinent Rift ca. 1110–1090 Ma. Whereas this cratonic rift basin is typically considered an isolated occurrence, a series of new depositional ages demonstrate that multiple cratonic basins in northern Laurentia originated around...
FIGURES
Journal Article
Journal: Lithosphere
Publisher: GSW
Published: 01 December 2016
Lithosphere (2016) 8 (6): 649–667.
... and translated along the northern margin of Laurentia (e.g., Colpron and Nelson, 2011 ; Cocks and Torsvik, 2011 ; Miller et al., 2011 ). Figure 1. Generalized location maps. (A) The distribution of paleo-Arctic terranes in the northern Cordillera (modified from Colpron and Nelson, 2011 ). (B...
Journal Article
Published: 01 November 2022
Journal of Paleontology (2022) 96 (6): 1461–1478.
... associated with Holorhynchus , Deloprosopus , and Eoconchidium . This unique fauna was widely distributed across several tectonic plates, largely confined to the paleoequatorial and especially the northern paleotropical zones, such as northern Laurentia, accretionary terranes of Alaska, Kolyma, Baltica...
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Journal Article
Published: 03 October 2023
Canadian Journal of Earth Sciences (2023) 60 (12): 1597–1626.
..., such as the North Slope subterrane and eventual development of the passive margin of northern Laurentia. Corresponding author: Karol Faehnrich (email: [email protected] ) The authors declare there are no competing interests. 08 02 2023 06 06 2023 03 10 2023 2023...
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Journal Article
Journal: GSA Bulletin
Published: 06 February 2019
GSA Bulletin (2019) 131 (7-8): 1075–1094.
...Keith Dewing; Thomas Hadlari; D. Graham Pearson; William Matthews Abstract Three tectonic events affected the northern margin of Laurentia between Early Ordovician and Early Devonian time. Each tectonic cycle started with an unconformity followed by rapid subsidence and an influx of clastic...
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Journal Article
Published: 08 November 2024
Journal of the Geological Society (2025) 182 (1): jgs2024-093.
... shows the extent of the collisional Grenvillian–Sveconorwegian orogen; dashed green line with triangles shows peri-Rodinian subduction zones; blue line indicates a passive margin adjacent to (present-day) northern Baltica. Au, Australia; Si, Siberia; La, Laurentia; P, Pearya (Ellesmere Island); Sv...
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Journal Article
Journal: GSA Bulletin
Published: 01 September 2010
GSA Bulletin (2010) 122 (9-10): 1686–1699.
... black area), and delivering Grenvillian grains to adjacent peri-Gondwanan continental margins (black arrows). Also shown are the potentially coeval Shaler and related river systems in northern Laurentia ( Rainbird et al., 1992 , 1997 ). See text for discussion. Abbreviations: UMG—Uinta Mountain Group...
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Journal Article
Journal: Geology
Published: 22 November 2021
Geology (2022) 50 (3): 266–271.
... terranes. The new data link the tuffs to granitoids (326 Ma) of the Maya block in southern Mexico, which was part of northern Gondwana. Correlation of the Stanley-Barnett tuffs across southern Laurentia suggests the likely presence of Mississippian tuffs over a broad region in southern Laurentia...
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Journal Article
Published: 01 January 2012
Rocky Mountain Geology (2012) 47 (1): 1–35.
... an earlier cycle of sedimentation predating ca. 1750-Ma deformation in the northern Yavapai province. The southward progression of ages is consistent with regional tectonic models for the evolution of the Paleoproterozoic accretionary provinces in southern Laurentia, and the multiple cycles of sedimentation...
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Journal Article
Published: 01 March 2005
The Journal of Geology (2005) 113 (2): 169–179.
... of the Wyoming craton into Laurentia. 2 U.S. Geological Survey, 345 Middlefield Road, Menlo Park, California 94025, U.S.A. 3 Department of Geology, Amherst College, Amherst, Massachusetts 01002, U.S.A. 4 Department of Earth Sciences, Montana State University, Bozeman, Montana 59717, U.S.A. e...
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Journal Article
Journal: Geology
Published: 01 January 2005
Geology (2005) 33 (1): e70.
...:NAFTGT]2.0.CO;2 Bartholomew M.J. Tollo R.P. 2004 , Northern ancestry for the Goochland terrane as a displaced fragment of Laurentia : Geology , v. 32 , p . 669 – 672 , doi: 10.1130/G20520.1 . 0016-7592(2004)036[0080:NUZEFP]2.0.CO;2 Owens B.E. Peng Z.X. Tucker R.D...
Journal Article
Journal: Geology
Published: 01 January 2005
Geology (2005) 33 (1): e70–e71.
... tectonics 7 : Dordrecht, Netherlands , Kluwer Academic Publishers , p . 363 – 374 . 0091-7613(2004)032[0669:NAFTGT]2.0.CO;2 Bartholomew M.J. Tollo R.P. 2004 , Northern ancestry for the Goochland terrane as a displaced fragment of Laurentia : Geology , v. 32 , no. 8 , p . 669 – 672...
Journal Article
Journal: Geology
Published: 01 August 2004
Geology (2004) 32 (8): 669–672.
... and outboard of the Reading Prong accounts for its affinities to the Blue Ridge (unique anorthosites), Manhattan Prong (abundant amphibolites), and Reading Prong (ca. 600 Ma magmatism). Thus similar to the translation of Madagascar out of Africa, the Goochland terrane was rifted from Laurentia, marooned...
FIGURES
Journal Article
Published: 28 March 2002
Canadian Journal of Earth Sciences (2002) 39 (3): 313–329.
...Gerald M. Ross; David W. Eaton Abstract The western Canadian Shield of northern Alberta is composed of a series of continental slivers that were accreted to the margin of the Archean Rae hinterland ca. 1.9–2.0 Ga., preserving a unique record of continental evolution for the interval 2.1–2.3 Ga...
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Journal Article
Journal: GSA Bulletin
Published: 01 November 1996
GSA Bulletin (1996) 108 (11): 1467–1480.
...Stéphane Faure; Alain Tremblay; Jacques Angelier Abstract A numerical paleostress tensor analysis using striated fault planes has been conducted in the Quebec reentrant of the northern Appalachians to characterize the stress field of late Paleozoic deformations. Three directions of maximum...
Image
Tectonic environment of northern Laurentia adapted from palaeogeographical maps of Plafker & Berg (1994), Nokleberg et al. (2000), and Midwinter et al. (2016).
Published: 02 April 2024
Figure 6. Tectonic environment of northern Laurentia adapted from palaeogeographical maps of Plafker & Berg ( 1994 ), Nokleberg et al. ( 2000 ), and Midwinter et al. ( 2016 ).
Image
Geological Setting. (A) Bedrock map of northern Laurentia showing the location of the Great Slave Lake shear zone (GSLsz) relative to Archean cratons and Paleoproterozoic belts (Stz—Snowbird tectonic zone; THO—Trans-Hudson orogen; Tmz—Taltson magmatic zone; Ttz—Thelon tectonic zone; WO—Wopmay Orogen) and basins (TB—Thelon basin; AB—Athabasca basin). (B) Metamorphic facies map of the study area showing sample locations, after Dyck et al. (2021). Shading corresponds to lithological boundaries. N.W.T.—Northwest Territories; Alta.—Alberta; Nvt.—Nunavut; Man.—Manitoba.
Published: 20 July 2022
Figure 1. Geological Setting. (A) Bedrock map of northern Laurentia showing the location of the Great Slave Lake shear zone (GSLsz) relative to Archean cratons and Paleoproterozoic belts (Stz—Snowbird tectonic zone; THO—Trans-Hudson orogen; Tmz—Taltson magmatic zone; Ttz—Thelon tectonic zone; WO