Multi-decadal satellite measurements of global volcanic degassing
نویسندگان
چکیده
منابع مشابه
Water in volcanic glass: From volcanic degassing to secondary hydration
Volcanic glass is deposited with trace amounts (0.1–0.6 wt.%) of undegassed magmatic water dissolved in the glass. After deposition, meteoric water penetrates into the glass structure mostly as molecular H2O. Due to the lower dD (‰) values of non-tropical meteoric waters and the 30‰ offset between volcanic glass and environmental water during hydration, secondary water imparts lighter hydrogen ...
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The rates of passive degassing from volcanoes are investigated by modelling the convective overturn of dense degassed and less dense gas-rich magmas in a vertical conduit linking a shallow degassing zone with a deep magma chamber. Laboratory experiments are used to constrain our theoretical model of the overturn rate and to elaborate on the model of this process presented by Kazahaya et al. (19...
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The history of ice velocity and calving front position of Daugaard Jensen Gletscher, a large outlet glacier in East Greenland, is reconstructed from field measurements, aerial photography and satellite imagery for the period 1950–2001. The calving terminus of the glacier has remained in approximately the same position over the past 50 years. There is no evidence of a change in ice motion betwee...
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ژورنال
عنوان ژورنال: Journal of Volcanology and Geothermal Research
سال: 2016
ISSN: 0377-0273
DOI: 10.1016/j.jvolgeores.2016.01.002