Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12544/1181
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Moussallam, Yves
Tamburello, Giancarlo
Peters, Nial
Apaza Choquehuayta, Fredy Erlingtton
Schipper, C. Ian
Curtis, Aaron
Aiuppa, Alessandro
Masías Alvarez, Pablo Jorge
Boichuh, Marie
Bauduin, Sophie
Barnie, Talfan
Bani, Philipson
Giudice, Gaetano
Moussallam, Manuel
Arequipa
Moquegua
Perú
2018-03-28T19:57:58Z
2018-03-28T19:57:58Z
2017-06
Moussallam, Y.; Tamburello, G.; Peters, N.; Apaza, F.; Schipper, C., et al. (2017) - Volcanic gas emissions and degassing dynamics at Ubinas and Sabancaya volcanoes; implications for the volatile budget of the central volcanic zone. Journal of Volcanology and Geothermal Research, 343: 181-191. Doi: 10.1016/j.jvolgeores.2017.06.027
0377-0273
https://hdl.handle.net/20.500.12544/1181
Emission of volcanic gas is thought to be the dominant process by which volatiles transit from the deep earth to the atmosphere. Volcanic gas emissions, remain poorly constrained, and volcanoes of Peru are entirely absent from the current global dataset. In Peru, Sabancaya and Ubinas volcanoes are by far the largest sources of volcanic gas. Here, we report the first measurements of the compositions and fluxes of volcanic gases emitted from these volcanoes. The measurements were acquired in November 2015. We determined an average SO2 flux of 15.3 ± 2.3 kg s- 1 (1325-ton day- 1) at Sabancaya and of 11.4 ± 3.9 kg s- 1 (988-ton day- 1) at Ubinas using scanning ultraviolet spectroscopy and dual UV camera systems. In-situ Multi-GAS analyses yield molar proportions of H2O, CO2, SO2, H2S and H2 gases of 73, 15, 10 1.15 and 0.15 mol% at Sabancaya and of 96, 2.2, 1.2 and 0.05 mol% for H2O, CO2, SO2 and H2S at Ubinas. Together, these data imply cumulative fluxes for both volcanoes of 282, 30, 27, 1.2 and 0.01 kg s- 1 of H2O, CO2, SO2, H2S and H2 respectively. Sabancaya and Ubinas volcanoes together contribute about 60% of the total CO2 emissions from the Central Volcanic zone, and dominate by far the total revised volatile budget of the entire Central Volcanic Zone of the Andes.
application/pdf
eng
Elsevier
Journal of Volcanology and Geothermal Research, v. 343, 2017
info:eu-repo/semantics/restrictedAccess
Repositorio Institucional INGEMMET
Instituto Geológico, Minero y Metalúrgico – INGEMMET
Gases volcánicos
Desgasificación
Monitoreo de volcanes
Dióxido decarbono
Volcanes
Volcán Sabancaya
Volcán Ubinas
Volcanic gas emissions and degassing dynamics at Ubinas and Sabancaya volcanoes; implications for the volatile budget of the central volcanic zone
info:eu-repo/semantics/article
Vulcanología
Países Bajos
10.1016/j.jvolgeores.2017.06.027
Journal of Volcanology and Geothermal Research
https://doi.org/10.1016/j.jvolgeores.2017.06.027
Peer reviewed

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