Pyritized mudstone and associated facies in the Permian–Triassic boundary of the Çürük Dağ section, Southern Turkey

Varol, Baki; Koşun, Erdal; Pinar, Neslihan Ünal; Ayrancı, Korhan

doi:10.1016/j.jseaes.2010.11.017

Cited by 4 publications

(1 citation statement)

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“…Palaeoenvironmental reconstructions of the Permian-Triassic interval have primarily focused on the period of time surrounding the PTME (e.g., Wignall and Twitchett, 1996;Lehrmann et al, 2003;Thomas et al, 2004;Algeo et al, 2007;Son et al, 2007;Grasby and Beauchamp, 2009;Bond and Wignall, 2010;Brookfield et al, 2010;Liao et al, 2010;Richoz et al, 2010;Varol et al, 2011). Only a handful of studies have produced continuous environmental records across the entire Lower Triassic interval of environmental instability at the regional or local scale (e.g., Shen et al, 2015;Lau et al, 2016;Grasby et al, 2021;Ishizaki and Shiino, 2023;Saito et al, 2023).…”

Section: Introductionmentioning

confidence: 99%

Hyperthermal-driven anoxia and reduced productivity in the aftermath of the Permian-Triassic mass extinction: a case study from Western Canada

Woods,

Zonneveld,

Wakefield

2023

Front. Earth Sci.

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Introduction: The eruption of the Siberian Traps near the Permian-Triassic boundary (PTB) resulted in the rapid input of vast amounts of CO2 into the atmosphere and the subsequent development of a hothouse climate across much of the Early Triassic. The distribution of environmental stresses led to a complex recovery as survivors navigated high SSTs in shallow settings and an expanded OMZ that impinged upon the continental shelves. The Ursula Creek section of western British Columbia preserves a complete Lower-lowermost Middle Triassic sedimentary record of deep-water facies and provides a means to examine how offshore oceanic conditions varied along the western continental margin of Pangaea across the PTB and the entire Permian-Triassic recovery interval.Methods: A total of 204 samples were collected from the uppermost Permian Fantasque Formation, the Griesbachian—Dienerian Grayling Formation and the Smithian—Anisian Toad Formation and analyzed for major, minor, and trace elements in addition to %TOC contents.Results: Anoxic to euxinic conditions were persistent during deposition of most of the study interval based on lithologic indicators (finely-laminated siltstone that lacks trace fossils and a benthic fauna) and elevated Mo, U, and V enrichment factors (EFs). Ba, Cu, Ni, P, and Zn EFs indicate dampened productivity (EFs <1) across the much of the Early Triassic that was the result of weakened upwelling during a global hothouse interval. An increase in Cu, Ni, P, and Zn enrichment factors during the Anisian track a decline in global temperatures and the reestablishment of coastal upwelling as global thermal gradients and wind speeds increased.Discussion: The results of this study point to the persistence of hyperthermal events and associated environmental stressors and underscores the urgency of curbing modern greenhouse gas emissions to prevent Earth from tipping into a hothouse state.

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Section: Introductionmentioning

confidence: 99%

Hyperthermal-driven anoxia and reduced productivity in the aftermath of the Permian-Triassic mass extinction: a case study from Western Canada

Woods,

Zonneveld,

Wakefield

2023

Front. Earth Sci.

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Final Results and Recommendations of the Last 10 Years IGCP 572 and 630 Field Workshops in South Turkey, Oman, India (Kashmir) and Armenia

Baud¹

2018

J. Earth Sci.

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Assessing Early Triassic paleoceanographic conditions via unusual sedimentary fabrics and features

Woods

2014

Earth-Science Reviews

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Pyritized mudstone and associated facies in the Permian–Triassic boundary of the Çürük Dağ section, Southern Turkey

Cited by 4 publications

References 44 publications

Hyperthermal-driven anoxia and reduced productivity in the aftermath of the Permian-Triassic mass extinction: a case study from Western Canada

Hyperthermal-driven anoxia and reduced productivity in the aftermath of the Permian-Triassic mass extinction: a case study from Western Canada

Final Results and Recommendations of the Last 10 Years IGCP 572 and 630 Field Workshops in South Turkey, Oman, India (Kashmir) and Armenia

Assessing Early Triassic paleoceanographic conditions via unusual sedimentary fabrics and features

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