Official Journal of the Asia Oceania Geosciences Society (AOGS)
Table 1 Bromo volcanic gas ratios, gas composition, and degassing budget
From: Bromo activity over the last decade: consistent passive degassing and source magma evolution
Date | H2S/SO2 | CO2/SO2 | H2/SO2 | H2O/SO2 | Source |
|---|---|---|---|---|---|
20/09/2014 | 0.35 ± 0.07 | 3.6 ± 1.0 | 0.14 ± 0.05 | 61 ± 16 | Aiuppa et al. (2015) |
21/09/2014 | 0.18 ± 0.08 | 4.6 ± 1.8 | 0.29 ± 0.17 | 142 ± 54 | |
03/10/2018 | 0.44 ± 0.02 | 3.9 ± 0.9 | 0.24 ± 0.07 | 137 ± 51 | This work |
05/10/2018 | 0.53 ± 0.003 | 5.0 ± 3.1 | 0.38 ± 0.16 | 64 ± 37 | |
06/10/2018 | 0.46 ± 0.01 | – | – | – | |
Mean | 0.39 ± 0.04 | 4.3 ± 1.7 | 0.26 ± 0.11 | 101 ± 39 | |
Mean CO2/ST | 3.1 ± 1.6 | ||||
Gas composition and mean flux estimates | ||
|---|---|---|
Composition (mol %) | Flux (t/d) | |
H2O | 94.4 | 5141 ± 658 |
CO2 | 4.0 | 532 ± 70 |
SO2 | 0.9 | 181 ± 60 |
H2S | 0.4 | 37 ± 12 |
H2 | 0.2 | 1.0 ± 0.2 |