This year's colloquium series will consist of a mixture of researchers across the University of Arizona along with visiting scientists as well! The colloquium series will be conducted in the Gould-Simpson “Fishbowl” (2nd floor) from 4-5PM on Thursdays. There will be a Zoom option as well to tune in: https://arizona.zoom.us/j/98858976814
Schedule is subject to change.
Organized by Kaustubh Thirumalai, Mauricio Ibañez-Mejia, and Jonny Wu.
Geosciences Colloquium Series 2025-2026
Fall 2025
| DATE | SPEAKER | TITLE |
|---|---|---|
| August 28, 2025 | Susan Beck (Professor, University of Arizona Department of Geosciences) NOTE: This talk will take place in ENR2 S107 | Contributions of Seismic Imaging to Understanding the South America Cordillera System |
| September 4, 2025 | Alex Pullen (Associate Professor, Department of Environmental Engineering and Earth Sciences, Clemson University) | Connecting the lithosphere with the Hydrosphere and atmosphere |
| September 11, 2025 | CANCELLED | |
| September 18, 2025 | Mark Holland (Research Scientist, Arizona Geological Survey) | The non-uniformitarian Grenville orogeny: Insights from high precision U-Pb geochronology of a Grenvillian anorthosite massif |
| September 25, 2025 | Veleda Müller (PostDoc, University of Arizona Department of Geosciences) | Tectonics, erosion, and the making of mountains: insights from Patagonia |
| October 2, 2025 | Francisco Apen (Assistant Professor, School of Earth and Sustainability, NAU) | Record of Eoarchean-Hadean crustal evolution from the Tanzanian craton |
| October 9, 2025 | Stephen Roberts, (University of Southampton, UK, SEG Thayer Lindsley Visiting Lecturer) NOTE: This is a virtual talk that will be played in room 228A | Investigations of Modern Vent Sites and the Feedback Loops Between These Natural Laboratories and Terrestrial VHMS Deposits |
| October 16, 2025 | Anta-Clarisse Sarr (Researcher, Department of Earth Sciences, University of Oregon) | Monsoon or not Monsoon? How did global topography help shape Asian Climate |
| October 23, 2025 | ***Not Talk, GSA Week*** | |
| October 30, 2025 | Terry Plank (Arthur D. Storke Memorial Professor of Geochemistry, Lamont-Doherty Earth Observatory, Columbia Climate School) | Magma Stalling and Launching Depths beneath Active Volcanoes |
| November 6, 2025 | Emily Beverly (Assistant Professor, Earth and Atmospheric Sciences, University of Houston) | Stable vs. Chaotic Eras - Quantifying Landscape Evolution during early Eocene Hyperthermals in western North America |
| November 13, 2025 | Julia Tejada (Assistant Professor, Division of Geological and Planetary Sciences, Caltech) | Beyond bones and teeth: geochemical windows into the evolution of diets |
| November 20, 2025 | Speaker TBD | |
| November 27, 2025 | ***No talk, Thanksgiving Day*** | |
| December 4, 2025 | Ken Sims (Professor, Department of Geology and Geophysics, University of Wyoming) | TBD |
Colloquium Archive
| DATE | SPEAKER | TITLE |
|---|---|---|
| January 16, 2025 | Brian Horton (Professor, Department of Earth and Planetary Sciences, Jackson School of Geosciences, UT Austin) | River drainage evolution in the Amazon foreland basin during uplift of the Andes |
| January 23, 2025 | Donna Shillington (Professor, School of Earth and Sustainability, NAU) | Controls on great earthquakes in the Alaska-Aleutian subduction zone |
| January 30, 2025 | Johannes Hammerli (Assistant Professor, School of the Environment, WSU) | Unraveling Fluid Origins in Mineralized Systems Through Cl/Br Ratios in Scapolite: Advancing from Experimental Studies to Geological Applications |
| February 6, 2025 | Ryan Glaubke (Postdoctoral Research Associate, Department of Geosciences, UofA) | Deglaciation and the Deep: The Ocean’s Role in the Last Major Example of Global Climate Change |
| February 13, 2025 | Emily Cooperdock (Assistant Professor, Department of Earth, Environmental & Planetary Sciences, Brown University) | Is mantle alteration key to maintaining a habitable planet? |
| February 20, 2025 | Jon Spencer (Adjunct Researcher, Department of Geosciences, University of Arizona) | Reconstruction of Cenozoic tectonic extension and the initial distribution of porphyry copper deposits in the greater Sonoran Desert region, with implications for deposit genesis |
| February 27, 2025 | Lizz Ultee (Assistant Professor of Earth and Climate Sciences, Middlebury College) | Future glacial water resources in a changing climate |
| March 6, 2025 | Michael Dinniman (Senior Research Scientist, Old Dominion University) | How the Antarctic Ice Sheet Impacts the Ocean (besides changing sea level) |
| March 13, 2025 | ***No Talk, Spring Break*** | |
| March 20, 2025 | Julie Euber (SARSEF) | Seventy Years of SARSEF: Creating Arizona’s Future Critical Thinkers and Problem Solvers through Science and Engineering |
| March 27, 2025 | ***No Talk, GeoDaze & Advisory Board Meeting*** | |
| April 3, 2025 | Cin-Ty Lee (Harry Carothers Wiess Professor of Geology, Earth, Environmental and Planetary Sciences, Rice University) | Crustal thickness and its role in planetary habitability |
| April 10, 2025 | M. Akif Sarikaya (Quaternary Geologist, Istanbul Technical University, Eurasia Institute of Earth Sciences) | Glacier-based paleoclimatology in the Anatolian mountains, Türkiye |
| April 17, 2025 | Mattia Pistone (Assistant Professor, Department of Geology, University of Georgia Athens) | Moho Mission to the Foundation of Continents: The ICDP DIVE Drilling Project |
| April 24, 2025 | CANCELLED - Francisco Apen (Assistant Professor, School of Earth and Sustainability, NAU) | Record of Eoarchean-Hadean crustal evolution from the Tanzanian craton |
| May 1, 2025 | Guleed Ali (IDEA Fellow in Sustainable Climate and Solutions, Stony Brook University) | The Last High Watermark of th |
| DATE | SPEAKER | TITLE |
|---|---|---|
| August 29, 2024 | Jessica Tierney (Professor, University of Arizona Geosciences) | Past Climates Inform Our Future NOTE: This talk will be located in Koffler Rm 204 |
| September 5, 2024 | Esteban Gazel (Cornell University) | Oceanic intraplate explosive eruptions fed directly from the mantle |
| September 12, 2024 | Cancelled | |
| September 19, 2024 | Lowell Chair Candidate | |
| September 26, 2024 | **No Talk Due to GSA*** | |
| October 3, 2024 | Lowell Chair Candidate | |
| October 10, 2024 | Lowell Chair Candidate | |
| October 17, 2024 | Lowell Chair Candidate | |
| October 24, 2024 | No Talk | |
| October 31, 2024 | Eric Schmidtke (PhD Candidate, Simon Fraser University, Canada) | Fine-tuning our focus: A clearer vision of the Early Eocene tectonomagmatic evolution of the Pacific Northwest Cordilleran hinterland through high-resolution chronostratigraphy and goechemistry of the Challis-Kamloops group |
| November 7, 2024 | Dustin Schroeder (Associate Professor of Geophysics, Stanford University) | Exploring the Subsurface Processes of Ice Sheets and Icy Moons with Ice Penetrating Radar |
| November 14, 2024 | Megan Mueller (NSF Postdoctoral Fellow, University of Arizona Geosciences) | The Timing, Drivers, and Consequences of Continental Collision |
| November 21, 2024 | Eleanour Snow (Director, Youth and Education Program, USGS) | Tucson to Tampa to Austin to DC: A path through academia to public service, centering education, mentoring, and inclusion |
| November 28, 2024 | ***No Talk, Thanksgiving Break*** | |
| December 5, 2024 | No Talk |
| DATE | SPEAKER | TITLE |
|---|---|---|
| January 11, 2024 | Dr. Peter DeCelles (Professor, Tectonics, Stratigraphy and Sedimentology) | Why the Central Andes are Bigger than the Himalaya |
| January 18, 2024 | Dr. Jordan Abell (Geosciences Postdoctoral Research Associate) | How space dust can rock our understanding of past climates: A Pliocene story of North Pacific productivity, dustiness, and iron fertilization. |
| January 25, 2024 | No Talk | |
| February 1, 2024 | Dr. Marc Hirschmann (Professor, Department of Earth and Environmental Science, University of Minnesota) | The Deep Earth Oxygen Cycle |
| February 8, 2024 | Alan Juarez-Zuniga (Postdoctoral Research Associate, University of Arizona Department of Geosciences) | Elucidating the Interaction Between Aquifers and Faults from Geophysical Datasets |
| February 15, 2024 | Alicia Cruz-Uribe (Edward Sturgis Grew Associate Professor of Mineralogy and Petrology, School of Earth and Climate Sciences, The University of Maine) | Prospects and challenges for in situ beta decay geochronology |
| February 22, 2024 | Dr. Jeremy Tsung-Jui Wu (Postdoctoral Researcher, Department of Geological Sciences and Engineering, University of Nevada, Reno) | Subduction Velocity Control on Arc Magmatism along Western Pacific Convergent margins. |
| February 29, 2024 | Dr. Ari Matmon (Professor, Head of the Earth Science Institute, Hebrew University) | A new look at an old landscape: The chronology of the Kalahari Group sediments |
| March 7, 2024 | SPRING BREAK | |
| March 14, 2024 | No Talk | |
| March 21, 2024 | GeoDaze - No Speaker | |
| March 28, 2024 | Dr. John Douglass (Paradise Valley Community College) | Discovery of beach sand, beachrock, and capping tufa on Balakai Mesa: Implications for the Bidahochi Formation and the overflow origin of the Grand Canyon |
| April 4, 2024 | ||
| April 11, 2024 | Harriet Lau (Assistant Professor, Department of Earth, Environmental & Planetary Sciences, Brown University) | Evolving Solid Earth Dynamics across the Mid Pleistocene Transition |
| April 18, 2024 | Ryan Venturelli (Assistant Professor, Geology and Geological Engineering, Colorado School of Mines) | Retreat, Recovery, and Subglacial Radiocarbon: Untangling past [in]stability of the West Antarctic Ice Sheet |
| April 25, 2024 | TBD | |
| May 1, 2024 | TBD |
