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  • Paisley et al 2019 Volcanica

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Degassing-induced chemical heterogeneity at the 2011-2012 Cordón Caulle eruption

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Degassing-induced chemical heterogeneity at the 2011-2012 Cordón Caulle eruption. / Paisley, Rebecca; Berlo, Kim; Whattam, Jack et al.

In: Volcanica, Vol. 2, No. 2, 26.11.2019, p. 211-237.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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Paisley, R, Berlo, K, Whattam, J, Schipper, CI & Tuffen, H 2019, 'Degassing-induced chemical heterogeneity at the 2011-2012 Cordón Caulle eruption', Volcanica, vol. 2, no. 2, pp. 211-237. https://doi.org/10.30909/vol.02.02.211237

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Vancouver

Paisley R, Berlo K, Whattam J, Schipper CI, Tuffen H. Degassing-induced chemical heterogeneity at the 2011-2012 Cordón Caulle eruption. Volcanica. 2019 Nov 26;2(2):211-237. doi: 10.30909/vol.02.02.211237

Author

Paisley, Rebecca ; Berlo, Kim ; Whattam, Jack et al. / Degassing-induced chemical heterogeneity at the 2011-2012 Cordón Caulle eruption. In: Volcanica. 2019 ; Vol. 2, No. 2. pp. 211-237.

Bibtex

@article{5748b08effe2438cac4dd64409f9b0e2,
title = "Degassing-induced chemical heterogeneity at the 2011-2012 Cord{\'o}n Caulle eruption",
abstract = "Low H2O concentrations preserved in the erupted products from the 2011-2012 eruption at Cord{\'o}n Caulle, Chile, have limited its use as a recorder of the shallow degassing processes responsible for the observed hybrid activity. However, volatile trace element heterogeneity (e.g. Li, Pb, Tl) is observed in different textural domains (e.g. breccias, tuffisites), which each represent the competing processes of fracturing, gas fluxing and melt relaxation occurring at different locations within the upper conduit. Elemental depletions in tuffisite veins record scavenging of metals by the fluxing gas phase. Preserved concentration gradients indicate deep-conduit degassing events are short-lived (~minutes), whilst late-stage activity involves hours of gas venting from a single location. Later-erupted material is more degassed than earlier-erupted bombs indicating a progressive loss of volatiles with eruption duration. Combining in situ textural and volatile trace element analyses can constrain evolving degassing processes in systems that are depleted in H2O and CO2",
author = "Rebecca Paisley and Kim Berlo and Jack Whattam and Schipper, {C. Ian} and Hugh Tuffen",
year = "2019",
month = nov,
day = "26",
doi = "10.30909/vol.02.02.211237",
language = "English",
volume = "2",
pages = "211--237",
journal = "Volcanica",
issn = "2610-3540",
publisher = "Volcanica",
number = "2",

}

RIS

TY - JOUR

T1 - Degassing-induced chemical heterogeneity at the 2011-2012 Cordón Caulle eruption

AU - Paisley, Rebecca

AU - Berlo, Kim

AU - Whattam, Jack

AU - Schipper, C. Ian

AU - Tuffen, Hugh

PY - 2019/11/26

Y1 - 2019/11/26

N2 - Low H2O concentrations preserved in the erupted products from the 2011-2012 eruption at Cordón Caulle, Chile, have limited its use as a recorder of the shallow degassing processes responsible for the observed hybrid activity. However, volatile trace element heterogeneity (e.g. Li, Pb, Tl) is observed in different textural domains (e.g. breccias, tuffisites), which each represent the competing processes of fracturing, gas fluxing and melt relaxation occurring at different locations within the upper conduit. Elemental depletions in tuffisite veins record scavenging of metals by the fluxing gas phase. Preserved concentration gradients indicate deep-conduit degassing events are short-lived (~minutes), whilst late-stage activity involves hours of gas venting from a single location. Later-erupted material is more degassed than earlier-erupted bombs indicating a progressive loss of volatiles with eruption duration. Combining in situ textural and volatile trace element analyses can constrain evolving degassing processes in systems that are depleted in H2O and CO2

AB - Low H2O concentrations preserved in the erupted products from the 2011-2012 eruption at Cordón Caulle, Chile, have limited its use as a recorder of the shallow degassing processes responsible for the observed hybrid activity. However, volatile trace element heterogeneity (e.g. Li, Pb, Tl) is observed in different textural domains (e.g. breccias, tuffisites), which each represent the competing processes of fracturing, gas fluxing and melt relaxation occurring at different locations within the upper conduit. Elemental depletions in tuffisite veins record scavenging of metals by the fluxing gas phase. Preserved concentration gradients indicate deep-conduit degassing events are short-lived (~minutes), whilst late-stage activity involves hours of gas venting from a single location. Later-erupted material is more degassed than earlier-erupted bombs indicating a progressive loss of volatiles with eruption duration. Combining in situ textural and volatile trace element analyses can constrain evolving degassing processes in systems that are depleted in H2O and CO2

U2 - 10.30909/vol.02.02.211237

DO - 10.30909/vol.02.02.211237

M3 - Journal article

VL - 2

SP - 211

EP - 237

JO - Volcanica

JF - Volcanica

SN - 2610-3540

IS - 2

ER -