Physics
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010georl..3720311s&link_type=abstract
Geophysical Research Letters, Volume 37, Issue 20, CiteID L20311
Physics
3
Volcanology: Experimental Volcanism, Volcanology: Magma Migration And Fragmentation, Volcanology: Subaqueous Volcanism, Volcanology: Eruption Mechanisms And Flow Emplacement, Volcanology: Volcano Monitoring (7280)
Scientific paper
Compared to “dry” atmospheric eruption of magma or “dry” magma/rock contact, intensity and time scale of heat discharge from magma to the surroundings is strongly modified by an effective coolant: water or water-sediment mixes. In the case of subaqueous or subglacial eruptions magma-water contact must take place and can result in phreatomagmatic explosions. Even if no explosions occur, rapid cooling results in the formation of pyroclasts by thermal granulation. To study this process in detail, a short-term calorimeter was built for the direct measurement of the heat-flux from a magmatic melt to a coolant. Volcanic rocks from recent eruptions in Iceland were remelted and used to produce jets of melt poured into a coolant-filled container. Particles could be produced in a non-explosive process, that are practical identical to those from natural hyaloclastites. The process' fragmentation energy is about 10% of the total heat transferred from melt to coolant.
Büttner Ralf
Gudmundsson Magnús T.
Oddsson B.
Schmid Alfred
Seegelken R.
No associations
LandOfFree
Experiments on the heat discharge at the dynamic magma-water-interface does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Experiments on the heat discharge at the dynamic magma-water-interface, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Experiments on the heat discharge at the dynamic magma-water-interface will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1231549