Isotopic ratio and concentration of sulfur in the undersaturated alkaline magmas of Vulture Volcano (Italy) |
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Authors: | L Marini A Paiotti C Principe G Ferrara R Cioni |
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Institution: | (1) Geotermica Italiana srl, Lungarno Mediceo 16, 56127 Pisa, Italy;(2) Istituto di Geocronologia e Geochimica Isotopica, CNR, Via Cardinale Pietro Maffi 36, 56127 Pisa, Italy |
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Abstract: | Both the 34 value and the total S content of products from Vulture Volcano, Italy are mainly controlled by the separation of S gases, predominantly SO2, from high f
O2magmas containing S predominantly as SO
2-
4
. The addition of evaporites to such magmas appears to be a relatively uncommon and limited phenomenon. The total S content of the most primitive product of Vulture Volcano (5600 mg/kg) is very high. The high 34S value of 4 indicates an origin through the partial melting of a mantle containing high S, enriched in 34S of unknown origin. |
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Keywords: | Sulphur isotopes alkaline magmas magma degassing magma contamination Vulture Volcano Italy |
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