Isotope evidence for Archean accordion-tectonics in the Superior Province
Precambrian Research(2023)
摘要
•Coeval juvenile growth and reworking at 3.3–3.25 Ga in the Winnipeg River terrane.•Zircon growth at 3.05 Ga potentially defines an episode of high-grade metamorphism.•Correlated igneous and metamorphic events amongst the plutonic-gneiss terranes.•Simultaneous growth of the granite-greenstone terranes between 3.1 Ga and 2.7 Ga.•Archean accordion-tectonics proposed for the evolution of the Superior craton.
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关键词
Archean tectonics,Crustal formation,U-Pb,Lu-Hf,Zircon
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