Auxiliary Material for
Gas emissions from five volcanoes in northern Chile, and implications for the volatiles budget of
the Central Volcanic Zone
G. Tamburello1, T.H. Hansteen2, S. Bredemeyer2, A. Aiuppa1,3
1
2
DiSTeM, Università di Palermo
GEOMAR, Helmholtz Centre for Ocean Research, Kiel
3
INGV, Sezione di Palermo
Geophysical Research Letter
Introduction
The table “ts01.pdf” contains the SO2 flux data for 5 volcanoes in northern Chile during the period
November 2012 – December 2013, measured using two transportable scanning Mini-DOAS
systems described in further detail in the paper.
The table “ts02.pdf” contains the gas molar ratios obtained using the INGV-type Multicomponent
Gas Analyzer System (MultiGAS) and sets of base-treated filter packs.
The table “ts03.pdf” contains the first chemical composition of two fumaroles of Ollagüe fumarolic
system collected on June 5, 2005.
1. ts01.pdf Statistical summary of SO2 flux data used in this study.
1.1 Column “Volcano”, Name of the volcano which SO2 flux has been measured.
1.2 Column “Scans/day”, Number of DOAS scans performed on the specified date.
1.3 Column “Average”, t·d-1,Average SO2 flux on the specified date.
1.4 Column “Min”, t·d-1, Minimum SO2 flux measured on the specified date.
1.5 Column “Max”, t·d-1, Maximum SO2 flux measured on the specified date.
1.6 Column “St.Dev.”, t·d-1, Standard deviation of the daily SO2 flux dataset.
1.7 Column “Wind speed”, m·s-1, Wind speed used for the calculation of the SO2 flux for each day.
2. ts02.pdf Gas molar ratios of Lastarria and Láscar volcanoes.
2.1 Column “Volcano”, Name of the volcano which gas composition has been measured.
2.2 Column “CO2/SO2”, molar ratio, MultiGAS derived CO2/SO2 molar ratios.
2.2 Column “SO2/H2S”, molar ratio, MultiGAS derived SO2/H2S molar ratios.
2.4 Column “CO2/Stot”, molar ratio, MultiGAS derived CO2/Stot molar ratios.
2.5 Column “H2O/CO2”, molar ratio, MultiGAS derived H2O/CO2 molar ratios.
2.6 Column “Stot/Cl”, molar ratio, filter-pack derived Stot/Cl molar ratios.
2.7 Column “Cl/F”, m·s-1, filter-pack derived Cl/F molar ratios.
2.8 Column “Stot/Br”, filter-pack derived Stot/Br molar ratios.
2.9 Column “Br/I”, filter-pack derived Br/I molar ratios.
3. ts03.pdf Chemical composition of two fumaroles sampled on Ollagüe volcano
3.1 Column “Latitude”, degrees, latitude of the sampled fumarole.
3.2 Column “Longitude”, degrees, longitude of the sampled fumarole.
3.3 Column “Altitude”, m, altitude of the sampled fumarole.
3.4 Column “Temperature”, °C, temperature of the gas at the sampling site.
3.5-3.17 Columns, mmol·mol-1, concentration of the specified gas.
3.18 Column “δ13C”, ‰, measure of the ratio of stable isotopes 13C.
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