Siberian Traps large igneous province: Evidence for two flood basalt pulses around the Permo-Triassic boundary and in the Middle Triassic, and contemporaneous granitic magmatism

Ivanov, Alexei V.; He, Huayiu; Yan, Liekun; Ryabov, V. V.; Shevko, A. Ya.; Palesskii, S. V.; Николаева, И. В.

doi:10.1016/j.earscirev.2013.04.001

Cited by 128 publications

(66 citation statements)

References 89 publications

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“…Current U-Pb and Ar-Ar constraints on the timing and tempo of Siberian Traps magmatism are less precise by an order of magnitude than our new constraints on the extinction. With current estimates, it can only be concluded that magmatism either overlaps with or postdates the extinction (43,47,49). Additionally, the potential for bias between chronometers and subtle differences in calculated dates generated by single or multiple laboratories using different U-Pb data acquisition and reduction protocols currently prohibits exploring the full details of a causal relationship.…”

Section: Discussionmentioning

confidence: 96%

High-precision timeline for Earth’s most severe extinction

Burgess

Bowring

Shen

2014

Proc. Natl. Acad. Sci. U.S.A.

608

479

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Significance Mass extinctions are major drivers of macroevolutionary change and mark fundamental transitions in the history of life, yet the feedbacks between environmental perturbation and biological response, which occur on submillennial timescales, are poorly understood. We present a high-precision age model for the end-Permian mass extinction, which was the most severe loss of marine and terrestrial biota in the last 542 My, that allows exploration of the sequence of events at millennial to decamillenial timescales 252 Mya. This record is critical for a better understanding of the punctuated nature and duration of the extinction, the reorganization of the carbon cycle, and a refined evaluation of potential trigger and kill mechanisms.

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Section: Discussionmentioning

confidence: 96%

High-precision timeline for Earth’s most severe extinction

Burgess

Bowring

Shen

2014

Proc. Natl. Acad. Sci. U.S.A.

608

479

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“…Late Paleozoic granite intrusions are not present in the Verkhoyansk FTB located to the east of the Siberian Craton (Khudoley and Prokopiev 2007, and references therein). Therefore, the predominance of detrital zircon grains with peaks at 293-295 Ma suggests an erosion of granite intrusions widely distributed in the Urals and Taimyr-Severnaya Zemlya FTB (Vernikovsky 1996;Puchkov 2009 and references (Vernikovsky et al 2003;Puchkov 2009;Ivanov et al 2013). However, direct transport of clastic sediments from the Urals to the northern margin of the Siberian Craton seems unlikely based on the abundance of evidence for predominantly marine environments in the northern part of the West Siberian Sedimentary Basin throughout the Jurassic (Vyssotski et al 2006 and references therein).…”

Section: Discussionmentioning

confidence: 99%

Provenance of Jurassic-Cretaceous siliciclastic rocks from the northern Siberian Craton: an integrated heavy mineral study

Vereshchagin¹,

Khudoley²,

Ershova³

et al. 2018

Jour. Geosci.

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The U-Pb ages of detrital zircons and the chemical compositions of detrital garnets and tourmalines from Jurassic-Cretaceous sedimentary rocks of the northern part of the Priverkhoyansk Foreland Basin, the central part of the Yenisey-Khatanga Depression, and the northern part of the Taimyr-Severnaya Zemlya Fold and Thrust Belt were used for a provenance study. Detrital zircons display two age populations, dominated by Late Paleozoic and Paleoproterozoic-Archean zircons, respectively. The first population was recognized in all samples, whereas the second is restricted to Cretaceous samples, suggesting that erosion of the Siberian Craton basement was the main source of clastic sediments only during the Cretaceous. The chemical compositions of the garnets also indicate several sources of detrital material, which changed with time. There are significant differences in the composition of Jurassic (grossular-almandine) and Cretaceous (mainly pyrope) garnets. The pyrope association is characteristic of the high-grade metamorphic rocks of the Siberian Craton, which correlates well with our zircon data. The chemical composition of tourmaline grains varies widely and does not show significant differences between samples of different ages, therefore could not be used to discriminate between different provenance areas in this study.

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“…The lack of an efficient deep-ocean carbonate sink in the end-Permian also slows the regulation of pCO 2 through silicate weathering (Figure 8). The estimated volume of the Siberian Traps LIP is ~4 x 10 6 km 3 , while the area inundated by lavas was ~7 x 10 6 km 2 (Sobolev et al, 2011;Ivanov et al, 2013). In contrast, the CAMP is estimated to have had a subaerial extent of >1.12 x 10 7 km 2 (McHone, 2003) but this figure is poorly constrained because very few of the CAMP outcrops remain; the majority of the LIP…”

Section: Accepted Manuscriptmentioning

confidence: 99%