Details
| Original language | English |
|---|---|
| Article number | 6709 |
| Journal | Scientific reports |
| Volume | 10 |
| Issue number | 1 |
| Publication status | Published - 21 Apr 2020 |
Abstract
The dynamics of deep sea explosive eruptions, the dispersion of the pyroclasts, and how submarine eruptions differ from the subaerial ones are still poorly known due to the limited access to sea environments. Here, we analyze two ash layers representative of the proximal and distal deposits of two submarine eruptions from a 500 to 800 m deep cones of the Marsili Seamount (Italy). Fall deposits occur at a distance of more than 1.5 km from the vent, while volcanoclastic flows are close to the flanks of the cone. Ash shows textures indicative of poor magma-water interaction and a gas-rich environment. X-ray microtomography data on ash morphology and bubbles, along with gas solubility and ash dispersion models suggest 200–400 m high eruptive columns and a sea current velocity <5 cm/s. In deep sea environments, Strombolian-like eruptions are similar to the subaerial ones provided that a gas cloud occurs around the vent.
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In: Scientific reports, Vol. 10, No. 1, 6709, 21.04.2020.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Deep sea explosive eruptions may be not so different from subaerial eruptions
AU - Iezzi, Gianluca
AU - Lanzafame, Gabriele
AU - Mancini, Lucia
AU - Behrens, Harald
AU - Tamburrino, Stella
AU - Vallefuoco, Mattia
AU - Passaro, Salvatore
AU - Signanini, Patrizio
AU - Ventura, Guido
N1 - Funding Information: This research has been conducted with funds from CNR-IAMC, University of Chieti, ElettraSincrotone Trieste and INGV. This study was partially supported by the Eurobuilding Spa, the “Fondi Ateneo of the University G. D’Annunzio”, the PRIN (2009PZ47NA_003) project “Experimental determination of the glass-forming ability (GFA), nucleation and crystallization of natural silicate melts” and the PRIN (2017J277S9_003) project “Time scales of solidification in magmas: Application to Volcanic Eruptions, Silicate Melts, Glasses, Glass-Ceramics” awarded to G. Iezzi.
PY - 2020/4/21
Y1 - 2020/4/21
N2 - The dynamics of deep sea explosive eruptions, the dispersion of the pyroclasts, and how submarine eruptions differ from the subaerial ones are still poorly known due to the limited access to sea environments. Here, we analyze two ash layers representative of the proximal and distal deposits of two submarine eruptions from a 500 to 800 m deep cones of the Marsili Seamount (Italy). Fall deposits occur at a distance of more than 1.5 km from the vent, while volcanoclastic flows are close to the flanks of the cone. Ash shows textures indicative of poor magma-water interaction and a gas-rich environment. X-ray microtomography data on ash morphology and bubbles, along with gas solubility and ash dispersion models suggest 200–400 m high eruptive columns and a sea current velocity <5 cm/s. In deep sea environments, Strombolian-like eruptions are similar to the subaerial ones provided that a gas cloud occurs around the vent.
AB - The dynamics of deep sea explosive eruptions, the dispersion of the pyroclasts, and how submarine eruptions differ from the subaerial ones are still poorly known due to the limited access to sea environments. Here, we analyze two ash layers representative of the proximal and distal deposits of two submarine eruptions from a 500 to 800 m deep cones of the Marsili Seamount (Italy). Fall deposits occur at a distance of more than 1.5 km from the vent, while volcanoclastic flows are close to the flanks of the cone. Ash shows textures indicative of poor magma-water interaction and a gas-rich environment. X-ray microtomography data on ash morphology and bubbles, along with gas solubility and ash dispersion models suggest 200–400 m high eruptive columns and a sea current velocity <5 cm/s. In deep sea environments, Strombolian-like eruptions are similar to the subaerial ones provided that a gas cloud occurs around the vent.
UR - http://www.scopus.com/inward/record.url?scp=85083771536&partnerID=8YFLogxK
U2 - 10.1038/s41598-020-63737-7
DO - 10.1038/s41598-020-63737-7
M3 - Article
C2 - 32317696
AN - SCOPUS:85083771536
VL - 10
JO - Scientific reports
JF - Scientific reports
SN - 2045-2322
IS - 1
M1 - 6709
ER -