This three-year, $337,782 Project Grant from the National Science Foundation's Geosciences program (CFDA 47.050) supports research at California State University Fullerton and Princeton University to determine the time and length scales of magma bodies in magmatic arcs. The grant recipients will study potassium feldspar phenocrysts and megacrysts up to 12 cm long containing mineral inclusions from the Tuolumne Intrusive Complex in Yosemite National Park. Electron microprobe, laser ablation-inductively coupled plasma-mass spectrometry, thermal ionization mass spectrometry, secondary ion mass spectrometry, and other techniques will be used to image feldspar textures and zonation, determine mineral inclusion geochronology and thermometry, and analyze melt compositions. This data will test hypotheses about whether large intrusive complexes represent "hot" or "cold" magma storage and reflect on debates about interconnectedness, thermal evolution, fractionation, mixing and eruption potential of magma bodies over time scales of millions of years. The research supports graduate and undergraduate student training and will inform volcanic hazard outreach.
Mod # | Description | Reason For Modification | Federal Obligation (Click to sort descending) | Date (Click to sort ascending) |
|---|---|---|---|---|
| Not listed | $337.8k | 3/8/23 |