Loading...
Please wait, while we are loading the content...
Similar Documents
Volcanic gas emissions and degassing dynamics at Ubinas and Sabancaya volcanoes; implications for the volatile budget of the central volcanic zone
| Content Provider | Semantic Scholar |
|---|---|
| Author | Moussallam, Yves Tamburello, Giancarlo Peters, Nial Apaza, Fredy Schipper, Ian C. I. Curtis, Aaron Todd Aiuppa, Alessandro Masias, Pablo Boichu, Marie Bauduin, Sophie Barnie, Talfan Bani, Philipson Giudice, Gaetano Moussallam, Manuel |
| Copyright Year | 2017 |
| Abstract | Abstract 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 SO 2 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 H 2 O, CO 2 , SO 2 , H 2 S and H 2 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 H 2 O, CO 2 , SO 2 and H 2 S at Ubinas. Together, these data imply cumulative fluxes for both volcanoes of 282, 30, 27, 1.2 and 0.01 kg s − 1 of H 2 O, CO 2 , SO 2 , H 2 S and H 2 respectively. Sabancaya and Ubinas volcanoes together contribute about 60% of the total CO 2 emissions from the Central Volcanic zone, and dominate by far the total revised volatile budget of the entire Central Volcanic Zone of the Andes. |
| Starting Page | 181 |
| Ending Page | 191 |
| Page Count | 11 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.jvolgeores.2017.06.027 |
| Volume Number | 343 |
| Alternate Webpage(s) | https://www.repository.cam.ac.uk/bitstream/handle/1810/269899/Ubinas%20and%20Sabancaya.pdf?isAllowed=y&sequence=1 |
| Alternate Webpage(s) | https://doi.org/10.1016/j.jvolgeores.2017.06.027 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
