Infrasonic evidences for branched conduit dynamics at Mt. Etna volcano, Italy

Details Infrasonic evidences for branched conduit dynamics at Mt. Etna volcano, Italy Infrasonic evidences for branched conduit dynamics at Mt. Etna volcano, Italy

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3619308m&link_type=abstract

Geophysical Research Letters, Volume 36, Issue 19, CiteID L19308

Computer Science

Sound

5

Volcanology: Explosive Volcanism, Volcanology: Eruption Mechanisms And Flow Emplacement, Volcanology: Volcano Monitoring (7280), Volcanology: Instruments And Techniques

Scientific paper

On multi-vents volcanoes changes in activity between different vents reflect a complex fluid-dynamics of the shallow feeding systems and are often explained numerically and experimentally in terms of conduit branches and bifurcations. We present new geophysical constraints on the shallow feeding system of Etna volcano derived from array analysis of infrasound radiated from two distinct sources, one located in the SE crater and one in the Voragine or NE crater (VNE). These two sources alternated in their behavior, with the VNE crater system radiating low amplitude background infrasound interrupted by episodes of increased infrasound radiation from the SE crater. This switching behavior suggested a branched shallow feeding system strongly controlled by the gas/magma-flux. Here, the VNE craters represented the preferential and most stable branch of degassing during stationary flux regime, while the SE crater branch activated in response to an increase in the magma/gas supply rate.

Affiliated with

Also associated with

No associations

Rating

Infrasonic evidences for branched conduit dynamics at Mt. Etna volcano, Italy 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 Infrasonic evidences for branched conduit dynamics at Mt. Etna volcano, Italy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Infrasonic evidences for branched conduit dynamics at Mt. Etna volcano, Italy will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1360554