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Deep Magma Storage During the 2021 La Palma Eruption
Kyle Dayton
Esteban Gazel
Penny Wieser
Valentin R. Troll
Juan Carlos Carracedo
Hector La Madrid
Diana C. Roman
Jamison Ward
Meritxell Aulinas
Harri Geiger
Frances M. Deegan
Guillem Gisbert
Francisco J. Perez-Torrado
出版
Universität
, 2023
URL
http://books.google.com.hk/books?id=AFhl0AEACAAJ&hl=&source=gbs_api
註釋
Abstract: The 2021 La Palma eruption provided an unpreceded opportunity to test the relationship between earthquake hypocenters and the location of magma reservoirs. We performed density measurements on CO2-rich fluid inclusions (FIs) hosted in olivine crystals that are highly sensitive to pressure via calibrated Raman spectroscopy. This technique can revolutionize our knowledge of magma storage and transport during an ongoing eruption, given that it can produce precise magma storage depth constraints in near real time with minimal sample preparation. Our FIs have CO2 recorded densities from 0.73 to 0.98 g/cm3, translating into depths of 15 to 27 km, which falls within the reported deep seismic zone recording the main melt storage reservoir