1. New Mexico Institute of Mining and Technology, Earth and Environmental Science, Socorro, NM, USA
2. Mineral Sciences, National Museum of Natural History Smithsonian Institution, 10th St. & Constitution Ave. NW, Washington, DC 20560, USA
3. Alaska Volcano Observatory, U.S. Geological Survey (USGS), 4230 University Drive, Anchorage, AK 99508, USA
4. Graduate School of Oceanography, University of Rhode Island, Narragansett Bay Campus, 215 S Ferry Rd, Narragansett, RI 02882, USA