Skip to content

Research at St Andrews

Voluminous silicic eruptions during late Permian Emeishan igneous province and link to climate cooling

Research output: Contribution to journalArticle

Author(s)

J. Yang, Peter Anthony Cawood, Y. Du

School/Research organisations

Abstract

Silicic eruptive units can constitute a substantive component in flood-basalts-dominated large igneous provinces, but usually constitute only a small proportion of the preserved volume due to poor preservation. Thus, their environmental impact can be underestimated or ignored. Establishing the original volume and potential climate-sensitive gas emissions of silicic eruptions is generally lacking for most large igneous provinces. We present a case study for the ~260 Ma Emeishan province, where silicic volcanic rocks are a very minor component of the preserved rock archive due to extensive erosion during the Late Permian. Modal and geochemical data from Late Permian sandstones derived from the province suggest that silicic volcanic rocks constituted some ~30% by volume of the total eroded Emeishan volcanic source rocks. This volume corresponds to >3×10 km on the basis of two independent estimate methods. Detrital zircon trace element and Hf isotopic data require the silicic source rocks to be formed mainly by fractional crystallization from associated basaltic magmas. Based on experimental and theoretical calculations, these basalt-derived ~10 km silicic eruptions released ~10 g sulfur gases into the higher atmosphere and contribute to the contemporaneous climate cooling at the Capitanian-Wuchiapingian transition (~260 Ma). This study highlights the potentially important impact on climate of silicic eruptions associated with large igneous province volcanism.
Close

Details

Original languageEnglish
Pages (from-to)166-175
Number of pages10
JournalEarth and Planetary Science Letters
Volume432
Early online date3 Nov 2015
DOIs
Publication statusPublished - 15 Dec 2015

    Research areas

  • Silicic volcanism, Emeishan, Climate cooling, Sulfur gas emission

Discover related content
Find related publications, people, projects and more using interactive charts.

View graph of relations

Related by author

  1. Implications of 770 Ma Rhyolitic Tuffs, eastern South China Craton in constraining the tectonic setting of the Nanhua Basin

    Qi, L., Xu, Y., Cawood, P. A., Wang, W. & Du, Y., Jan 2019, In : Lithos. 324-325, p. 842-858

    Research output: Contribution to journalArticle

  2. Evolution of the Mozambique Belt in Malawi constrained by granitoid U-Pb, Sm-Nd and Lu-Hf isotopic data

    Manda, B. W. C., Cawood, P. A., Spencer, C. J., Prave, T., Robinson, R. & Roberts, N. M. W., 29 Nov 2018, In : Gondwana Research. In press

    Research output: Contribution to journalArticle

Related by journal

  1. An early diagenetic deglacial origin for basal Ediacaran “cap dolostones”

    Ahms, A-S., Maloof, A., Macdonald, F., Hoffman, P., Bjerrum, C., Bold, U., Rose, C. V., Strauss, J. & Higgins, J., 15 Jan 2019, In : Earth and Planetary Science Letters. 506, p. 292-307 16 p.

    Research output: Contribution to journalArticle

  2. Calibration of Na partitioning in the calcitic foraminifer Operculina ammonoides under variable Ca concentration: toward reconstructing past seawater composition

    Hauzer, H., Evans, D., Müller, W., Rosenthal, Y. & Erez, J., 1 Sep 2018, In : Earth and Planetary Science Letters. 497, p. 80-91 12 p.

    Research output: Contribution to journalArticle

  3. Constraining the evolution of Neogene ocean carbonate chemistry using the boron isotope pH proxy

    Sosdian, S. M., Greenop, R., Hain, M. P., Foster, G. L., Pearson, P. N. & Lear, C. H., 15 Sep 2018, In : Earth and Planetary Science Letters. 498, p. 362-376 15 p.

    Research output: Contribution to journalArticle

  4. Cryogenic silicification of microorganisms in hydrothermal fluids

    Fox-Powell, M. G., Channing, A., Applin, D., Cloutis, E., Preston, L. J. & Cousins, C. R., 15 Sep 2018, In : Earth and Planetary Science Letters. 498, p. 1-8 8 p.

    Research output: Contribution to journalArticle

  5. Pervasive aerobic nitrogen cycling in the surface ocean across the Paleoproterozoic Era

    Kipp, M. A., Stüeken, E. E., Yun, M., Bekker, A. & Buick, R., 15 Oct 2018, In : Earth and Planetary Science Letters. 500, p. 117-126 10 p.

    Research output: Contribution to journalArticle

Related by journal

  1. Earth and Planetary Science Letters (Journal)

    Chris Hawkesworth (Member of editorial board)
    19851993

    Activity: Publication peer-review and editorial work typesEditor of research journal

ID: 228961346