2022
DOI: 10.1093/petrology/egac095
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Composition and Petrology of a Mush-Bearing Magma Reservoir beneath Tenerife

Abstract: Deciphering the dynamics of sub-volcanic magmatic processes requires a detailed understanding of the compositional and textural relationships between melt and crystals. To examine these relationships, we investigated material from one of the largest caldera-forming explosive eruptions on the ocean island of Tenerife, the 312 ka Fasnia event. This eruption ejected juvenile pyroclasts of melt-bearing, partially crystalline cumulate nodules alongside phonolitic pumice and accidental lithic clasts. Nodules contain… Show more

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Cited by 4 publications
(3 citation statements)
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“…In our tomography model, we observed a high Vp/Vs ratio anomaly in the lower part of the “keel”, which may represent slow ascent of fluid‐saturated magma in a ductile medium, compatible with the petrological model of Horn et al. (2022). At some point, oversaturation reaches a threshold, causing abrupt fluid release and degassing.…”
Section: Tenerife Island Tomographysupporting
confidence: 87%
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“…In our tomography model, we observed a high Vp/Vs ratio anomaly in the lower part of the “keel”, which may represent slow ascent of fluid‐saturated magma in a ductile medium, compatible with the petrological model of Horn et al. (2022). At some point, oversaturation reaches a threshold, causing abrupt fluid release and degassing.…”
Section: Tenerife Island Tomographysupporting
confidence: 87%
“…Our interpretation is corroborated by recent petrological studies of the same region. Horn et al (2022) present new evidence of several mafic/intermediate melt structures along with the existence of a phonolitic magma structure below the Las Cañadas caldera.…”
Section: Tenerife Island Tomographymentioning
confidence: 78%
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