Journal
ELEMENTS
Volume 12, Issue 2, Pages 91-96Publisher
MINERALOGICAL SOC AMER
DOI: 10.2113/gselements.12.2.91
Keywords
granite; rhyolite; continental crust; igneous petrology; magma
Categories
Funding
- National Science Foundation [EAR-0312691, 0336070, 0538129, 062210, EAR-1019632, 0944169, OCE-1060754]
- Directorate For Geosciences
- Division Of Earth Sciences [0538129] Funding Source: National Science Foundation
- Division Of Earth Sciences
- Directorate For Geosciences [0944169, 0336070] Funding Source: National Science Foundation
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The relationships between silicic volcanic and plutonic rocks have long puzzled geologists because the rich set of observations from petrology, geochronology, thermal modeling, geophysical techniques, and geochemistry have led to contradictory interpretations. Although compositional evolutionary trends leading to granite and rhyolite are congruent, it is not clear if rhyolites are formed by the extraction of melt from shallow crystal mushes that otherwise solidify to form granite plutons, or are derived from a greater depth in parallel with granite plutons, or are formed by processes separate from those which form granite plutons. Finding a consistent explanation for the silicic volcanic-plutonic relationship bears on important Earth science questions, including, How is silicic continental crust formed? and, Can we predict supereruptions?
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