Update 2015: DECADE - Gorely Volcano, Russia Project Update uri icon

DCO ID 11121/5184-2582-3312-2081-CC

Date Submitted

  • 2015-10-26

Update Text

  • Update submitted by Tobias Fischer, October 2015

    The very first assessment of volatile flux emissions from Gorely, an actively degassing volcano in Kamchatka were made during the IAVCEI CCVG gas workshop in 2011. Using a variety of in situ and remote sensing techniques, we determined the bulk plume concentrations of major volatiles (H2 O 93.5%, CO2 , 2.6%, SO2 2.2%, HCl 1.1%, HF 0.3%, H2  0.2%) and trace-halogens (Br, I), therefore estimating a total gas release of 11,000 tons per day during September 2011, at which time the target was non eruptively degassing at 900 C. Gorely is a typical arc emitter, contributing 0.3% and 1.6% of the total global fluxes from arc volcanism for CO2  and HCl, respectively. Gorely¬í volcano is a representative mean end-member for arc magmatism in the north-west Pacific region.