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Volume 15, issue 16
Atmos. Chem. Phys., 15, 9361–9379, 2015
https://doi.org/10.5194/acp-15-9361-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Atmos. Chem. Phys., 15, 9361–9379, 2015
https://doi.org/10.5194/acp-15-9361-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 21 Aug 2015

Research article | 21 Aug 2015

Ash iron mobilization through physicochemical processing in volcanic eruption plumes: a numerical modeling approach

G. A. Hoshyaripour et al.

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Cited articles

Atkins, P. W.: Physical Chemistry, Oxford Univ. Press, New York, 1986.
Ayris, P. M. and Delmelle, P.: V}olcanic and atmospheric controls on ash iron solubility: {A review, Phys. Chem. Earth, Parts A/B/C, 45–46, 103–112, 2012.
Ayris, P. M., Lee, A. F., Wilson, K., Kueppers, U., Dingwell, D. B., and Delmelle, P.: SO2 sequestration in large volcanic eruptions: High-temperature scavenging by tephra, Geochim. Cosmochim. Ac., 110, 58–69, 2013.
Ayris, P. M., Delmelle, P., Cimarelli, C., Maters, E. C., Suzuki, Y. J., and Dingwell, D. B.: HCl uptake by volcanic ash in the high temperature eruption plume: mechanistic insights, Geochim. Cosmochim. Ac., 144, 188–201, 2014.
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Iron released from volcanic ash can perturb the biogeochemical cycles in the ocean. However, knowing that the emitted ash from a volcano contains insoluble iron, what processes can solubilize the ash iron while it is airborne? To answer this question, a numerical model is developed in this study to simulate the gas-ash-aerosol interactions within the eruption plume. Results show that the dissolution of the ash mediated by halogen acids exert the key control on ash iron mobilization.
Iron released from volcanic ash can perturb the biogeochemical cycles in the ocean. However,...
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