6533b829fe1ef96bd128a9fb

RESEARCH PRODUCT

Elevated CO2 emissions during magmatic-hydrothermal degassing at Awu Volcano, Sangihe Arc, Indonesia

Philipson BaniEtienne Le GlasKristiantoAlessandro AiuppaMarcello BitettoDevy Kamil Syahbana

subject

lcsh:GeologyCO2 emissionlcsh:QE1-996.5[SDU.STU.VO]Sciences of the Universe [physics]/Earth Sciences/VolcanologyAwu volcano CO2 emission Sangihe arc Volcanic degassingAwu volcano[SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environmentvolcanic degassingCO<sub>2</sub> emissionSangihe arc

description

Awu is a remote and little known active volcano of Indonesia located in the northern part of Molucca Sea. It is the northernmost active volcano of the Sangihe arc with 18 eruptions in less than 4 centuries, causing a cumulative death toll of 11,048. Two of these eruptions were classified with a Volcanic Explosivity Index (VEI) of 4. Since 2004, a lava dome has occupied the centre of Awu crater, channelling the fumarolic gas output along the crater wall. A combined Differential Optical Absorption Spectroscopy (DOAS) and Multi-component Gas Analyzer System (Multi-GAS) study highlight a relatively small SO2 flux (13 t/d) sustained by mixed magmatic&ndash

yearjournalcountryeditionlanguage
2020-11-01
10.3390/geosciences10110470http://hdl.handle.net/10447/498810