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- W2902983277 endingPage "20180009" @default.
- W2902983277 startingPage "20180009" @default.
- W2902983277 abstract "The thermal and therefore physical state of magma bodies within the crust controls the processes and time scales required to mobilize magmas before eruptions, which in turn are critical to hazard assessment. Crystal records can be used to reconstruct magma reservoir histories, and the resulting time and length scales are converging with those accessible through numerical modelling of magma system dynamics. The goal of this contribution is to summarize constraints derived from crystal chronometry (radiometric dating and modelling intracrystalline diffusion durations), in order to facilitate use of these data by researchers in other fields. Crystallization ages of volcanic minerals typically span a large range (104-105 years), recording protracted activity in a given magma reservoir. However, diffusion durations are orders of magnitude shorter, indicating that the final mixing and assembly of erupted magma bodies is rapid. Combining both types of data in the same samples indicates that crystals are dominantly stored at near- or sub-solidus conditions, and are remobilized rapidly prior to eruptions. These observations are difficult to reconcile with some older numerical models of magma reservoir dynamics. However, combining the crystal-scale observations with models which explicitly incorporate grain-scale physics holds great potential for understanding dynamics within crustal magma reservoirs. This article is part of the Theo Murphy meeting issue 'Magma reservoir architecture and dynamics'." @default.
- W2902983277 created "2018-12-11" @default.
- W2902983277 creator A5083386129 @default.
- W2902983277 date "2019-01-07" @default.
- W2902983277 modified "2023-10-16" @default.
- W2902983277 title "Time scales and temperatures of crystal storage in magma reservoirs: implications for magma reservoir dynamics" @default.
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- W2902983277 doi "https://doi.org/10.1098/rsta.2018.0009" @default.
- W2902983277 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/6335477" @default.
- W2902983277 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30966941" @default.