Mesoarchean Continental Breakup: Evolution and Inferences from the &gt;2.8 Ga Slave Craton‐Cover Succession, Canada

Mueller, W.U.; Corcoran, Patricia L.; Pickett, C.

doi:10.1086/425967

Cited by 26 publications

(24 citation statements)

References 40 publications

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“…The majority of Mesoarchaean quartz arenite successions are considered to have been deposited on stable continental shelves along rifted margins (Thurston and Chivers, 1990;Eriksson et al, 1994;Mueller et al, 2005), but quartz-rich deposits of fault-controlled, high relief Mesoarchaean (e.g., Krapez, 1996) and Neoarchean (Corcoran et al, 1998) (Eriksson and Soegaard 1985;Hessler and Lowe, 2006).…”

Section: Greenstone Belt Sedimentationmentioning

confidence: 99%

“…Recognizable sedimentary processes in greenstone belts include debris flows on highgradient alluvial fans, mid-channel bar formation and unconfined sheetflood deposition in low-sinuosity, gravel-and sand-dominated braided rivers, wind ripple and dune migration in aeolian settings, tidal and wave reworking in shallow-marine environments, and deposition from turbulent flows (e.g., Eriksson, 1977Eriksson, , 1979Eriksson et al, 1994;Heubeck and Lowe;1994;Corcoran and Mueller, 2004;Mueller et al, 2005;Long, 2011). The predominance of low-sinuosity braided to the exclusion of high-sinuosity meandering fluvial deposits is compatible with high runoff rates linked to steep gradients, related to a lack of bank stabilization in the absence of land plants (Schumm, 1961;Davies and Gibling, 2011;Long, 2011).…”

Section: Greenstone Belt Sedimentationmentioning

confidence: 99%

“…Such iron formations are most common in the stable-shelf successions preserved in younger greenstone belts (<3.0 Ga) in the Slave and Superior Provinces, Canada, the Yilgarn Block, Australia and in Zimbabwe (e.g., Blenkinsop, 1993;Bleeker, 2003;Wyche et al, 2004;Mueller et al, 2005). Sulphidic iron formations likely developed below the pycnocline and Eriksson (1983) has likened Archaean iron formations to…”

Section: Greenstone Belt Sedimentationmentioning

confidence: 99%

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Secular changes in sedimentation systems and sequence stratigraphy

et al. 2013

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________________________________________________________________________The ephemeral nature of most sedimentation processes and the fragmentary character of the sedimentary record are of first-order importance. Despite a basic uniformity of external controls on sedimentation resulting in markedly similar lithologies, facies, facies associations and depositional elements within the rock record across time, there are a number of secular changes, particularly in rates and intensities of processes that resulted in contrasts between preserved Precambrian and Phanerozoic successions. Secular change encompassed (1) variations in mantle heat, rates of plate drift and of continental crustal growth, the gravitational effects of the Moon, and in rates of weathering, erosion, transport, deposition and diagenesis;(2) a decreasing planetary rotation rate over time; (3) no vegetation in the Precambrian, but prolific microbial mats, with the opposite pertaining to the Phanerozoic; (4) the long-term evolution of the hydrosphere-atmosphere-biosphere system. A relatively abrupt and sharp turning point was reached in the Neoarchaean, with spikes in mantle plume flux and tectonothermal activity and possibly concomitant onset of the supercontinent cycle. Substantial and irreversible change occurred subsequently in the Palaeoproterozoic, whereby the dramatic change from reducing to oxidising volcanic gases ushered in change to an oxic environment, to be followed at ca. 2.4-2.3 Ga by the "Great Oxidation Event" (GOE); rise in atmospheric oxygen was accompanied by expansion of oxygenic photosynthesis in the cyanobacteria. A possible global tectono-thermal "slowdown" from ca. 2.45-2.2 Ga may have separated a preceding plate regime which interacted with a higher energy mantle from a ca. 2.2-2.0 Ga Phanerozoicstyle plate tectonic regime; the "slowdown" period also encompassed the first known global-scale glaciation and overlapped with the GOE. While large palaeodeserts emerged from ca. 2.0 -1.8 Ga, possibly associated with the evolution of the supercontinent cycle, widespread euxinia by ca. 1.85 Ga

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Section: Greenstone Belt Sedimentationmentioning

confidence: 99%

Section: Greenstone Belt Sedimentationmentioning

confidence: 99%

Section: Greenstone Belt Sedimentationmentioning

confidence: 99%

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Secular changes in sedimentation systems and sequence stratigraphy

et al. 2013

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“…The Bell Lake Group is the lowermost part of the Yellowknife Supergroup and comprises orthoquartzite, felsic volcanic rocks and BIF packages from the bottom to the top. In general, the Bell Lake Group is considered to have been formed in a depositional setting, similar to that of a back-arc basin adjacent to a continental margin [21] during transgression [23]. A field photograph of the Dwyer Lake BIF.…”

Section: Sampling Sites and Sample Collectionmentioning

confidence: 99%

Fractal Nature of the Band-Thickness in the Archean Banded Iron Formation in the Yellowknife Greenstone Belt, Northwest Territories, Canada

Katsuta¹,

Shimizu²,

Takano³

et al. 2013

Climate Change and Regional/Local Responses

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“…Mueller et al, 2005). Strike-slip settings such as the Canterbury Plains of New Zealand and the Gulf of Aqaba, as well as foreland basin settings such as the Indo-Gangetic Plains of India are possible Holocene depositional-geodynamic analogues but all three examples lack a direct transition to tidally influenced sedimentation.…”

Section: Depositional and Geodynamic Settingmentioning

confidence: 99%