%0 Journal Article
%9 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES
%A Saing, U. B.
%A Bani, Philipson
%A Haerani, N.
%A Aiuppa, A.
%A Primulyana, S.
%A Alfianti, H.
%A Syahbana, D. K.
%A Kristianto,
%T First characterization of Gamkonora gas emission, North Maluku, East Indonesia
%D 2020
%L fdi:010079011
%G ENG
%J Bulletin of Volcanology
%@ 0258-8900
%K Gamkonora volcano ; Magmatic degassing ; Gas emission budget
%K INDONESIE ; MOLUQUES DU NORD ; GAMKONORA MONT
%M ISI:000527917500001
%N 5
%P art. 37 [11 ]
%R 10.1007/s00445-020-01375-7
%U https://www.documentation.ird.fr/hor/fdi:010079011
%> https://www.documentation.ird.fr/intranet/publi/2020/05/010079011.pdf
%V 82
%W Horizon (IRD)
%X Gamkonora is an active volcano capable of intense manifestations that regularly forced thousands of inhabitants to flee their villages. The most extreme eruption, in 1673, was a VEI 5 event that induced pitch-dark environment over the region. Paradoxically, little is known about Gamkonora volcano and here we present the first gas measurement results obtained in September 2018 using a MultiGAS and a scanning DOAS. Results highlight a relatively small but magmatic gas with a CO2/S-T of 3.5, in the range of high-temperature gas emissions from Indonesian volcanoes and H2O/SO2, CO2/SO2, H2S/SO2, and H-2/SO2 ratios of 135, 5.6, 0.6, and 0.2, respectively. The daily gas emission budget corresponds to 129 t, 13 t, 3.4 t, 1.1 t, and 0.03 t for H2O, CO2, SO2, H2S, and H-2, respectively. Bulk rock analyses indicate a basaltic andesite to andesite source beneath Gamkonora.
%$ 066