Articles | Volume 15, issue 16
https://doi.org/10.5194/acp-15-9361-2015
https://doi.org/10.5194/acp-15-9361-2015
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, M. Hort, and B. Langmann

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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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Short summary
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.
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