Search results for "Central American Volcanic Arc"

New insights of the volcanic gas signature of the Central American Volcanic Arc

Volcanic gas emissions carry crucial information on pre- and syn-eruptive processes, and on behaviour of active volcanic systems. Gas variations arise from replenishment of magma storage zones with mafic magma, from magma ascent and evolution, and from interaction with hydrothermal systems and volcanic lakes. As such, volcanic gases represent “open windows” into genesis and release of volatiles from the Earth’s interior. Volcanic emission measurements allow understanding subsurface magmatic and hydrothermal processes, and contribute to eruption forecasting. Carbon dioxide and sulfur gas represent the most abundant and studied gas species. In particular, CO2, due his fast exsolution during m…