170:– Glennie Complex around 1.92–1.88 Ga. Today these Palaeoproterzoic structures in the Trans-Hudson Orogen welds the Archaean Hearne and the Superior cratons. As the ocean continued to close, an Andean-style arc pluton known as the Wathaman Batholith formed 1.86–1.85 Ga. The subduction of the Manikewan Ocean stopped when the La Ronge Arc collided with Hearne. The final closure of the ocean around 1.83 Ga, when Hearne, Superior, and Sask cratons merged with the Flin Flon – Glennie Complex, was followed by a period of metamorphism that peaked around 1.82–1.8 Ga. The Manikewan Mobile Belt now covers an area of 600,000 km (230,000 sq mi) but is overlain by Middle Proterozoic
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to the west. Hearne and Rae were extensively reworked during the assembly of
Laurentia and overlain by Palaeoproterozoic cover sequences. On Hearne the most extensive such cover sequence is a series of continental and marine deposits known as the Hurwitz Group, a series of north-east-trending belts
106:(STZ). During the Neoarchaean and Palaeoproterozoic the STZ played a major role when the Western Churchill Province was first assembled and then reworked. The STZ is a record of Neoarchaean plate tectonics similar in scale to modern orogenic belts.
166:, started to open along the south-east margin of Hearne at 2.075 Ga and had reached a width of 5,000 km (3,100 mi) after a hundred million years. Intra-oceanic arc collision resulted in the Amisk Collage and the
391:"Continental arc magmatism along the southeast Hearne Craton margin in Saskatchewan, Canada: comparison of the 1.92–1.91 Ga Porter Bay Complex and the 1.86–1.85 Ga Wathaman Batholith"
150:
infolded with
Archaean basement in central Hearne has a fold-train with a wavelength of 35–45 km (22–28 mi). In the south-western Hearne continental
278:"Paleoproterozoic basement-cover infolding and thick-skinned thrusting in Hearne domain, Nunavut, Canada: intracratonic response to Trans-Hudson orogen"
524:
474:"Chronology of crustal growth and recycling in the Paleoproterozoic Amisk collage (Flin Flon Belt), Trans-Hudson orogen, Canada"
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rocks known as the Kiyuk Group overlie the
Hurwitz Group. Both groups are covered by a thick cover of thrusts and folds.
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348:"North American Central Plains conductivity anomaly within the Trans-hudson orogen in northern Saskatchewan, Canada"
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Jones, A. G.; Craven, J. A.; McNeice, G. W.; Ferguson, I. J.; Boyce, T.; Farquarson, C.; Ellis, R. G. (1993).
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431:"Manikewan: An early proterozoic ocean in central Canada, its igneous history and orogenic closure"
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The Hearne Craton is separated from the Rae Craton by the 2,000 km (1,200 mi)-long
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Palaeomap of North
American and Scandinavian cratons, basement rocks, and orogenic belts
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formed at 2.0–1.7 Ga Hearne and Rae formed a central strip to which the
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Stern, R. A.; Machado, N.; Syme, E. C.; Lucas, S. B.; David, J. (2000).
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Geological map of north-western Canada. Hearne Craton marked with C.
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320:"Lithoprobe leads to new perspectives on continental evolution"
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cratons were accreted. This strip is bounded by a series of
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Aspler, L. B.; Chiarenzelli, J. R.; McNicoll, V. J. (2002).
90:. Before being merged these six cratons formed independent
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10.1130/0091-7613(1993)021<1027:NACPCA>2.3.CO;2
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that cover 150,000 km (58,000 sq mi). A
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62:. Hearne is one of the six Archaean cratons of the
318:Clowes, R. M.; Cook, F. A.; Ludden, J. N. (1998).
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86:) that are bound together by Palaeoproterozoic
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54:in northern Canada which, together with the
162:The Manikewan Ocean, a palaeocean named by
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220:Aspler, Chiarenzelli & McNicoll 2002
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389:Maxeiner, R. O.; Rayner, N. (2011).
478:Canadian Journal of Earth Sciences
137:to the south, the 2.0–1.9 Ga
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415:10.1016/j.precamres.2010.10.005
210:, Abstract; Introduction, p. 1
196:Clowes, Cook & Ludden 1998
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303:10.1016/S0301-9268(02)00029-3
458:10.1016/0301-9268(84)90036-6
222:, Introduction, pp. 332–335
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235:Maxeiner & Rayner 2011
141:and the 1.97–1.84 Ga
237:, Introduction, pp. 93–95
27:Craton in northern Canada
525:Geology of North America
429:Stauffer, M. R. (1984).
133:: the 1.92–1.69 Ga
490:10.1139/cjes-36-11-1807
249:, Introduction, p. 1808
104:Snowbird Tectonic Zone
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438:Precambrian Research
395:Precambrian Research
282:Precambrian Research
58:, forms the Western
450:1984PreR...25..257S
407:2011PreR..184...93M
367:1993Geo....21.1027J
294:2002PreR..116..331A
520:Historical geology
98:Geological setting
60:Churchill Province
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484:(11): 1807–1827.
361:(11): 1027–1030.
247:Stern et al. 2000
208:Jones et al. 1993
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48:Hearne Craton
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135:Trans-Hudson
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198:, p. 2
174:sandstone.
148:synclinoria
509:Categories
261:, Abstract
178:References
56:Rae Craton
333:(10): 1–7
327:GSA Today
172:Athabasca
168:Flin Flon
111:Laurentia
119:Superior
80:Superior
515:Cratons
446:Bibcode
403:Bibcode
363:Bibcode
355:Geology
290:Bibcode
269:Sources
131:orogens
127:Wyoming
76:Wyoming
495:31 May
463:31 May
420:31 May
380:31 May
337:31 May
309:31 May
143:Wopmey
125:, and
52:craton
434:(PDF)
351:(PDF)
323:(PDF)
183:Notes
115:Slave
109:When
68:Slave
50:is a
497:2016
465:2016
422:2016
382:2016
339:2016
311:2016
123:Sask
84:Nain
46:The
486:doi
454:doi
411:doi
399:184
371:doi
298:doi
286:116
72:Rae
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331:8
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20:)
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