2000
DOI: 10.1093/petrology/41.1.21
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Remobilization of Andesite Magma by Intrusion of Mafic Magma at the Soufriere Hills Volcano, Montserrat, West Indies

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Cited by 444 publications
(326 citation statements)
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“…Commonly, amphibole is completely pseudomorphed by opacite composed of extremely fine-grained Fe-Ti oxide minerals. This opacite texture has been noted before 570 The Origin and emplacemenT Of dOmO TinTO, guallaTiri VOlcanO, nOrThern chile. (e.g., García and Jacobson, 1979) and has been described in other dome lavas (e.g., Murphy et al, 2000). In the latter, the authors distinguished between 3 types of amphibole alteration as Type 1 (forming a thin reaction rim), Type 2 (a coarse reaction rim) and Type 3 (complete alteration).…”
Section: Tinto Lava Samplesmentioning
confidence: 94%
“…Commonly, amphibole is completely pseudomorphed by opacite composed of extremely fine-grained Fe-Ti oxide minerals. This opacite texture has been noted before 570 The Origin and emplacemenT Of dOmO TinTO, guallaTiri VOlcanO, nOrThern chile. (e.g., García and Jacobson, 1979) and has been described in other dome lavas (e.g., Murphy et al, 2000). In the latter, the authors distinguished between 3 types of amphibole alteration as Type 1 (forming a thin reaction rim), Type 2 (a coarse reaction rim) and Type 3 (complete alteration).…”
Section: Tinto Lava Samplesmentioning
confidence: 94%
“…La existencia de una cámara magmática relativamente superficial en Campo Negro es, por su parte, consistente con la ausencia de olivino, la aparición del anfíbol y la plagioclasa y la mayor proporción de cristales (Barclay y Carmichael, 2004). Así también, la cámara magmática inferida es coherente con la presencia de enclaves máficos basálticos en relación de 'mingling' (e.g., Murphy et al, 2000;Coombs et al, 2002) con el magma andesítico más abundante, que alimentó las coladas de lava de Campo Negro.…”
Section: Interpretación De Las Características Geoquí-micas Y Petrogrunclassified
“…The triggering mechanism of the violent volcanic eruption is often intrusion of basaltic magma into the more evolved felsic magma chamber (Sparks et al 1977;Pallister et al 1996;Murphy et al 2000;Nairn et al 2004), but in some cases the arrival of a new rhyolitic magma reactivates another rhyolite magma at depth Eichelberger and Izbekov 2000;Smith et al 2004;Shane et al 2008). In the Harsány eruption episode, no sign of basaltic intrusion can be observed.…”
Section: Model 3: Derivation From Isolated Magma Batches and Syn-erupmentioning
confidence: 99%