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Time-resolved seismic tomography detects magma intrusions at Mt. Etna (2007)

Patanè, D. ; Barberi, G. ; Cocina, O. ; [et al.]

American Association for the Advancement of Science

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Publication Date: 2017-04-04

Description: The continuous volcanic and seismic activity at Mount Etna makes this volcano an important laboratory for seismological and geophysical studies. We used repeated three-dimensional tomography to detect variations in elastic parameters during different volcanic cycles, before and during the October 2002–January 2003 flank eruption. Well-defined anomalous low P- to S-wave velocity ratio volumes were revealed. Absent during the pre-eruptive period, the anomalies trace the intrusion of volatile-rich (Q4 weight percent) basaltic magma, most of which rose up only a few months before the onset of eruption. The observed time changes of velocity anomalies suggest that four-dimensional tomography provides a basis for more efficient volcano monitoring and shortand midterm eruption forecasting of explosive activity.

Description: Published

Description: 821-823

Description: reserved

Keywords: NONE ; 04. Solid Earth::04.01. Earth Interior::04.01.02. Geological and geophysical evidences of deep processes ; 04. Solid Earth::04.06. Seismology::04.06.07. Tomography and anisotropy ; 04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring

Repository Name: Istituto Nazionale di Geofisica e Vulcanologia (INGV)

Type: article

Format: 727523 bytes

Format: application/pdf

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Revisiting carbon flux through the ocean's twilight zone (2010)

Buesseler, Ken O. ; Lamborg, Carl H. ; Boyd, Philip W. ; [et al.]

American Association for the Advancement of Science

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Publication Date: 2017-01-04

Description: Citation only. Published in Science 316: 567-570, doi: 10.1126/science.1137959

Description: Funding was obtained primarily through the NSF, Ocean Sciences Programs in Chemical and Biological Oceanography, with additional support from the U.S. Department of Energy, Office of Science, Biological and Environmental Research Program, and other national programs, including the Australian Cooperative Research Centre program and Australian Antarctic Division.

Keywords: Carbon flux ; Carbon sequestration ; Biological pump

Repository Name: Woods Hole Open Access Server

Type: Article