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DOI	10.1016/j.epsl.2021.116853
	On Archean craton growth and stabilisation: Insights from lithospheric resistivity structure of the Superior Province
	Hill G.J.; Roots E.A.; Frieman B.M.; Haugaard R.; Craven J.A.; Smith R.S.; Snyder D.B.; Zhou X.; Sherlock R.
发表日期	2021
ISSN	0012821X
卷号	562
英文摘要	The nature of lithospheric evolution and style of the driving tectonic processes during the growth and stabilisation of continental crust in the Archean remain enigmatic. The hotter, rheologically weak Archean crust would be unable to support thick orogens. Thus, gravitational collapse likely occurred when continental fragments became overthickened and/or when far-field stresses were relieved during the terminal stages of orogenesis. 3D magnetotelluric resistivity models of the Archean Superior Province, reveal the presence of low resistivity zones in the mid-lower crust that reflect a protracted history of magmatic-hydrothermal activity contemporaneous with construction and collapse. These include sub-vertical zones of low resistivity in the mid-upper crust, inferred to represent corridors of paleo-fluid flow along crustal-scale structural networks developed in response to terrane amalgamations. Subsequent orogenic collapse resulted in widespread lateral flow within the lower crust accommodated by sub-horizontal shear zones and included magmatic refertilisation. Thus, the preserved low-resistivity anomalies in the mid-lower crust represent an amalgamation of magmatic-hydrothermal and deformational processes that occurred during construction, peak orogenesis, and collapse in the Archean. © 2021
关键词	Abitibi Archean crustal formation craton geodynamics magnetotellurics superior province
英文关键词	Metals; Shear flow; Stabilization; Tectonics; Continental crusts; Far-field stress; Gravitational collapse; Hydrothermal activity; Orogenic collapse; Resistivity models; Resistivity structure; Structural networks; Flow of fluids; Archean; continental crust; craton; geodynamics; lithospheric structure; magnetotelluric method; tectonics; Abitibi; Canada; Quebec [Canada]; Superior Province
语种	英语
来源期刊	Earth and Planetary Science Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/203130
作者单位	Institute of Geophysics, Czech Academy of Science, Prague, Czech Republic; Mineral Exploration Research Centre, Laurentian University, Sudbury, Canada; Geological Survey of Canada, Ottawa, Canada
推荐引用方式 GB/T 7714	Hill G.J.,Roots E.A.,Frieman B.M.,et al. On Archean craton growth and stabilisation: Insights from lithospheric resistivity structure of the Superior Province[J],2021,562.
APA	Hill G.J..,Roots E.A..,Frieman B.M..,Haugaard R..,Craven J.A..,...&Sherlock R..(2021).On Archean craton growth and stabilisation: Insights from lithospheric resistivity structure of the Superior Province.Earth and Planetary Science Letters,562.
MLA	Hill G.J.,et al."On Archean craton growth and stabilisation: Insights from lithospheric resistivity structure of the Superior Province".Earth and Planetary Science Letters 562(2021).