Magmatic Gas Composition Reveals the Source Depth of Slug-Driven Strombolian Explosive Activity

  title={Magmatic Gas Composition Reveals the Source Depth of Slug-Driven Strombolian Explosive Activity},
  author={Mike R. Burton and Patrick Allard and Filippo Muré and Alessandro La Spina},
  pages={227 - 230}
Strombolian-type eruptive activity, common at many volcanoes, consists of regular explosions driven by the bursting of gas slugs that rise faster than surrounding magma. Explosion quakes associated with this activity are usually localized at shallow depth; however, where and how slugs actually form remain poorly constrained. We used spectroscopic measurements performed during both quiescent degassing and explosions on Stromboli volcano (Italy) to demonstrate that gas slugs originate from as… 
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