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handle: 10261/23284
En un afloramiento intrusivo, constituído por rocas dacítico-andesíticas, al W de Noguera de Albarracín, existen enclaves de rocas metamórficas con espinela, corindón, sillimanita y otros minerales. Los estudios petrológicos indican que estos enclaves fueron originados en un proceso polifásico donde varias secuencias mineralógicas prógradas y retrógradas son reconocidas. Muchas de la paragénesis indican condiciones físicas de formación alrededor de los 800° C y los 5 Kb. Se plantea la posibilidad de la existencia de una relación entre el proceso metamórfico y el volcánico, y ambos asociados con el abombamiento cortical, posiblemente en relación con granitoides, que tuvo lugar en la Sierra de Albarracín durante el Paleozoico Superior.
Enclaves, spinel, sillimanite, corundum, andesites, inclusions, Corundum, Spinel, andesitas, sillimanita, dacitas, espinela, Espinela, Sillimanita, QE1-996.5, corindón, Geology, Corindón, Sillimate, Dacites, Andesites, Inclusions, enclaves, Andesitas, Dacitas
Enclaves, spinel, sillimanite, corundum, andesites, inclusions, Corundum, Spinel, andesitas, sillimanita, dacitas, espinela, Espinela, Sillimanita, QE1-996.5, corindón, Geology, Corindón, Sillimate, Dacites, Andesites, Inclusions, enclaves, Andesitas, Dacitas
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