Termination of a continent-margin upwelling system at the Permian–Triassic boundary (Opal Creek, Alberta, Canada)
نویسندگان
چکیده
a Department of Earth and Space Sciences, University of Washington, Seattle, WA 98195, USA b Department of Geoscience, University of Calgary, Calgary, AB, Canada c Department of Earth and Planetary Science, Washington University, St. Louis, MO 63130, USA d Department of Earth Sciences, Durham University, Durham, DH1 3LE, UK e Center for Applied Energy Research and Department of Earth & Environmental Sciences, University of Kentucky, Lexington, KY 40506, USA f Department of Geology, University of Cincinnati, Cincinnati, OH 45221 USA g Chinese Academy of Sciences Key Laboratory of Crust–Mantle Materials and Environments, School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China
منابع مشابه
Association of S-depleted pyrite layers with negative carbonate dC excursions at the Permian-Triassic boundary: Evidence for upwelling of sulfidic deep-ocean water masses
[1] A marine Permian-Triassic boundary (PTB) section at Nhi Tao, Vietnam, contains a series of at least 9 pyritic horizons characterized by concurrent decreases in pyrite S(dSpy) and carbonate C-isotopic compositions (dCcarb). The first and largest of the events that precipitated these pyritic horizons was coincident with the Late Permian mass extinction, while subsequent events were generally ...
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The Permian-Triassic boundary in the Himalayas is reviewed and discussed in the light of palaeontologic and stratigraphic data collected during the past two and a half decades from Kashmir, Spiti and Nepal. The deposition of the Kuling Shales and their equivalents in different parts of the Himalayas was followed by shallowing and regression of the sea. Sedimentation was interrupted at the t...
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The Permian–Triassic boundary at Nhi Tao, Cao Bang Province, Vietnam was sampled in a 7.5-m-thick outcrop section at high resolution (∼5 cm intervals) for chemostratigraphic and magnetic susceptibility analysis. The section consists entirely of slightly argillaceous limestone representing shallow-marine facies of the Jinxi Platform, one of several large carbonate platforms within the Nanpanjian...
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The Permian ended with the largest of known mass extinctions in the history of life. This signal event has been difficult to recognize in Antarctic non-marine rocks, because the boundary with the Triassic is defined by marine fossils at a stratotype section in China. Late Permian leaves (Glossopteris) and roots Vertebraria), and Early Triassic leaves (Dicroidium) and vertebrates (Lystrosaurus) ...
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