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FT25RM5. Catastrophic Sliding of the Cenozoic Marysvale

FT25RM5. Catastrophic Sliding of the Cenozoic Marysvale

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Full title: Catastrophic Gravity Sliding During Growth of the Cenozoic Marysvale Volcanic Field, Southwest Utah

Leaders: David Hacker, Robert F. Biek, Peter D. Rowley, David H. Malone, W. Ashley Griffith, Tiffany A. Rivera, Michael J. Braunagel

Endorser: National Science Foundation

Dates: Wed.–Thurs., 21–22 May, 2025

Location: GSA Rocky Mountain Section Meeting 2025, Provo, Utah, USA

Start Time: 8:00 AM (Wed.)

End Time: 5:00 PM (Thurs.)

This field trip will showcase the current understanding of the Marysvale Gravity Slide Complex, consisting of three gigantic gravity slides (each ~100 km long) covering an area >8000 km2. This complex allows for an amazing perspective into repeated catastrophic collapses of a major volcanic field during its magmatic evolution and growth. Field observations of intense deformation, clastic dikes, pseudotachylyte, jigsaw-puzzle fracturing, and consistency of kinematic indicators will illustrate the interpretation of rapid emplacement during each event. In particular, the most up-to-date and integrated field, geochronology, and rock mechanic data will be highlighted to explain our understanding of the internal anatomy, age, and emplacement mechanisms for each mega-slide. Cost includes transportation, hotel (21 May), lunch, dinner, snacks, and water.

By purchasing this item, you are buying a seat on an in-person geological field trip

Please review these Field Safety Documents. You will be contacted to provide your consent to these forms after purchasing a field trip.

Learn more about this and other Rocky Mountain Section Events.

For additional information, please contact Rebecca Taormina, rtaormina@geosociety.org, GSA Field Trip and Short Program Coordinator.

Product Code: FT25RM5

Product Category: FTRIP