Triggering mechanism at the origin of paroxysms at Stromboli (Aeolian Archipelago, Italy): The 5 April 2003 eruption

Details Triggering mechanism at the origin of paroxysms at Stromboli (Aeolian Archipelago, Italy): The 5 April 2003 eruption Triggering mechanism at the origin of paroxysms at Stromboli (Aeolian Archipelago, Italy): The 5 April 2003 eruption

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3210305m&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 10, CiteID L10305

Physics

Geophysics

18

Geochemistry: Fluid And Melt Inclusion Geochemistry, History Of Geophysics: Volcanology, Geochemistry, And Petrology, Volcanology: Eruption Mechanisms And Flow Emplacement, Volcanology: Explosive Volcanism, Volcanology: Magma Migration And Fragmentation

Scientific paper

The 5 April 2003 paroxysm of Stromboli occurred during an ongoing effusive episode that initiated on 28 December 2002. It mainly consisted in two, a few seconds apart cannon-like explosions followed by a vertical gas/pyroclast jet. The HK-basaltic pumices, that were generated, mainly contain crystals that were drained back from the shallow parts of the plumbing system. Few euhedral to anhedral olivines and their melt inclusions testify to crystal fractionation and possible mixing between HK-basaltic magmas variable in their volatile content, extent of evolution and volume. The most primitive, volatile-rich, HK-basalt term is sizable at micrometer scale, only. We propose that the triggering mechanism of the paroxysm was initiated at moderate pressures (>=240 MPa) and was related to bubble-driven ascent of magma blobs. The latter rose through and interacted with overlying slightly more evolved melts and, finally mingled with the shallow crystal-rich magma just before the eruption.

Affiliated with

Also associated with

No associations

Rating

Triggering mechanism at the origin of paroxysms at Stromboli (Aeolian Archipelago, Italy): The 5 April 2003 eruption 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 Triggering mechanism at the origin of paroxysms at Stromboli (Aeolian Archipelago, Italy): The 5 April 2003 eruption, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Triggering mechanism at the origin of paroxysms at Stromboli (Aeolian Archipelago, Italy): The 5 April 2003 eruption will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1435098