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Magma budgets and steady‐state activity of Vulcano and Stromboli
Author(s) -
Harris Andrew J. L.,
Stevenson David S.
Publication year - 1997
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/97gl00861
Subject(s) - magma , volcano , geology , magma chamber , fractional crystallization (geology) , petrology , geochemistry
We present three models for magma budget during steady‐state volcanic activity, by which non‐erupted magma is emplaced as dykes or cumulates or crystallises in place. Using gas and thermal data we apply our models at Vulcano to calculate degassing, cooling and crystallisation of magma at a rate of 40–375 kg s −1 within a magma body with an upper surface at a ∼2 km depth. At Stromboli we calculate a steady magma supply of 300–1300 kg s −1 to shallow (<1 km) depths.