Changing Volatile Contents Just Prior to Super-Eruptions: Evidence from the Upper Bandelier Tuff, Valles Caldera, New Mexico

Nicholas Franklin Meszaros1, Morgan Wade Maynard Nasholds2, Matthew J Zimmerer3 and James E Gardner1, (1)University of Texas at Austin, Department of Geological Sciences, Jackson School of Geosciences, Austin, TX, United States, (2)New Mexico Institute of Mining and Technology, Earth and Environmental Science Department, Socorro, NM, United States, (3)New Mexico Bureau of Geology and Mineral Resouces, Socorro, NM, United States