23 Distributed volcanic fields of the southwestern U.S. (Posters)

This session invites submissions from various disciplines (e.g., petrology, tectonics, geophysics, geochronology) that explore distributed volcanism in the southwestern U.S. Topics of interest include spatio-temporal trends, magma compositions, and mantle and/or crustal controls on volcanism.

Tuesday, 19 May 2026
8:00 AM - 5:30 PM
Alvarado D/E

Participants

• Chair Emily Johnson
• Chair Elizabeth Windom
• Chair Kellie Wall
• Chair Jisoo Kim

Presentations

• 8:00 AM
  A Magmatic Mystery: Origins and Volcanic History of deposits along U.S. Route 285 near Saguache, Colorado.
  Lydia Bradley, Bowling Green State University, Bowling Green, OH and Kurt Panter, Bowling Green State University, Bowling Green, OH
  410504 (Technical Sessions)
• 8:00 AM
  Magmatic Sources and Processes in Southwest Utah across the Basin and Range/Colorado Plateau Transition Zone
  Zhiqing Su, Miami University, Oxford, OH and Greg Valentine, University at Buffalo, Geology Department, Buffalo, NY and Elisabeth Widom, Miami University, Oxford, OH and Maria Murta, University at Buffalo, Buffalo, NY and David Kuentz, Miami University, Oxford, OH
  410540 (Technical Sessions)
• 8:00 AM
  Evaluating the Magmatic Duration of Climax-type Porphyry Deposits and Mineral Systems
  Sean Gaynor, Geology, Geophysics & Geochemistry Science Center, , Denver, CO and Joshua Rosera, Geology, Energy & Minerals Science Center, Fairfax, VA and Cameron Mercer, Geology, Geophysics & Geochemistry Science Center, Denver, CO
  410601 (Technical Sessions)
• 8:00 AM
  It's Tuff getting recognized: Ignimbrites of the Sour Creek dome, Yellowstone
  Raymond Salazar, Socorro, NM and Madison Myers, Montana State University, Bozeman, MT and Colin James Wilson, Victoria University of Wellington, Wellington and Hailey Finch, Central Washington University, Ellensburg, WA and Stacy Henderson, Montana State University, Bozeman, MT and Jess Ketel
  410642 (Technical Sessions)
• 8:00 AM
  Basin and Range Extension in the Lassen Volcano Backarc: Hybrid Lava Compositions in the Poison Lake Volcanic Chain, California
  John Chadwick, College of Charleston, Charleston, SC and Ella Jones, College of Charleston, Charleston, SC and Claire Strobl, College of Charleston, Charleston, SC and Jake Stinebrook, College of Charleston, Charleston, SC and Jen Floss, College of Charleston, Charleston, SC and Michael Clynne, US Geological Survey, CalVO MS 910, Menlo Park, CA and Dawn Ruth, United States Geological Survey, Moffett Field, CA and Shelby Bowden, Savannah River National Laboratory, Aiken, SC
  410654 (Technical Sessions)
• 8:00 AM
  Pre-Eruptive Magmatic Processes and Eruption Initiation Timescales for the Multi-Phase Eruption of Sunset Crater, San Francisco Volcanic Field, Arizona, USA
  Emily Yoder, New Mexico Institute of Mining and Technology, Socorro, New Mexico and Kellie Wall, Oregon Department of Geology and Mineral Industries, Portland, Oregon and Emily Johnson, U.S. Geological Survey, Vancouver, Washington
  410659 (Technical Sessions)
• 8:00 AM
  Did Cenozoic Volcanism in the Colorado Plateau Extend Farther in Space and Time Than Previously Accepted? Insights From the Pemada Canyon Dike.
  Matthew Ponce, New Mexico Institute of Mining and Technology, Socorro, New Mexico and Kevin Hobbs, New Mexico Bureau of Geology and Mineral Resources, Socorro, NM and Julia Ricci, New Mexico Bureau of Geology and Mineral Resources, Socorro, New Mexico and Laura Waters, New Mexico Tech, Socorro, NM
  410694 (Technical Sessions)