The Permian emplacement of granite–gneiss complexes in the East Uralian Zone and implications on the geodynamics of the Uralides

Görz, Ines; Buschmann, Bernd; Kroner, Uwe; Hauer, R.-W.; Henning, Diana

doi:10.1016/j.tecto.2008.12.019

Cited by 4 publications

(2 citation statements)

References 49 publications

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“…The corresponding zircons are mostly euhedral and with magmatic textures, indicating relatively proximal first cycled magmatic sources and requires relatively fast erosion and transport of zircons from source to sink [63]. The later stage of Uralian orogenesis is characterized by magmatic activity varying from the late Devonian to mid/late Permian age [5,[64][65][66][67]. Thus, the evidence suggests that the Uralian Orogen was a significant source during the deposition of southern Taimyr Permo-Carboniferous sedimentary successions.…”

Section: Provenance Of Permo-carboniferous and Early Cretaceous Succementioning

confidence: 95%

Provenance of Late Paleozoic-Mesozoic Sandstones, Taimyr Peninsula, the Arctic

et al. 2013

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The sedimentary and provenance characteristics of seven Permo-Carboniferous and two early Cretaceous samples from the Taimyr Peninsula provide information about the latest evolution of Uralian orogeny and the opening of the Amerasian Basin. The Permo-Carboniferous samples have a mixed provenance of recycled and first cycle sediment, sourced from metamorphic and igneous terranes. U-Pb detrital zircon ages represent a mixture of Precambrian-Paleozoic grains with euhedral, penecontemporaneous late Carboniferous and Permian grains consistent with derivation from the Uralian Orogen, plus additional Timanian and Caledonian material presumably derived from Baltica. Differences between the late Permian sample and the other Carboniferous and early Permian samples are interpreted to reflect the final collisional stage of Uralian orogeny. Early Cretaceous sediments deposited at the time of the Amerasian Basin opening preserve a mixed provenance of mainly first cycle metamorphic and igneous source material, as well as an unstable heavy mineral assemblage dominated by staurolite, suggesting local derivation. Detrital zircon ages fall almost exclusively into one late Permian-early Triassic cluster, indicating a Siberia Trap-related magmatic source. The detrital zircon age spectra support a passive margin setting for Taimyr during the opening of the Amerasian Basin in the early Cretaceous

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Section: Provenance Of Permo-carboniferous and Early Cretaceous Succementioning

confidence: 95%

Provenance of Late Paleozoic-Mesozoic Sandstones, Taimyr Peninsula, the Arctic

et al. 2013

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“…However, in recent years, geochemical and isotopic data have been obtained demonstrating that the protolith of the East Uralian zone may be primarily oceanic crust and gneisses that do not contain Palaeozoic granites but rather constitute the boundaries of granite massifs (Görz et al 2009;Görz and Hielscher 2010).…”

Section: Introductionmentioning

confidence: 99%

The early Precambrian history of rock metamorphism in the Urals segment of crust

Pystin

Pystina

2014

International Geology Review

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Early Precambrian rock units in the Urals are present in several polymetamorphic complexes, which are exposed in the Urals in the form of small (<1500 km 2 ) tectonic blocks. Their ages are Archaean (as old as 3.5 Ga) and Palaeoproterozoic. During the formation of these complexes in the early Precambrian, two stages of ultra-high-temperature (granulite) metamorphism occurred. The maximum age of the early Neoarchaean stage of metamorphism is 2.79 Ga. Evidence of this metamorphic event includes the dating of the Taratash gneiss-granulite complex of the South Urals. Gneiss-migmatite complexes, which dominate the lower Precambrian section of the Urals, were formed in the Palaeoproterozoic during the sequential appearance of granulite facies metamorphism followed by amphibolite facies metamorphism and accompanying granitization. The maximum age of the Palaeoproterozoic stage of granulite metamorphism in the Alexandrov gneissmigmatite complex, the most well-studied complex in the South Urals, is 2.08 Ga.

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An explicit plate kinematic model for the orogeny in the southern Uralides

Görz

Hielscher

2010

Tectonophysics

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The Permian emplacement of granite–gneiss complexes in the East Uralian Zone and implications on the geodynamics of the Uralides

Cited by 4 publications

References 49 publications

Provenance of Late Paleozoic-Mesozoic Sandstones, Taimyr Peninsula, the Arctic

Provenance of Late Paleozoic-Mesozoic Sandstones, Taimyr Peninsula, the Arctic

The early Precambrian history of rock metamorphism in the Urals segment of crust

An explicit plate kinematic model for the orogeny in the southern Uralides

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