Cordilleran Section - 121st Annual Meeting - 2025

Session No. 29
Friday, 4 April 2025: 8:00 AM-12:00 PM
Fresno (Holiday Inn Sacramento Downtown - Arena)

T17. Evolution of Plutons and Batholiths at Different Crustal Levels

GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Structural Geology and Tectonics Division

 

Madeline Lewis and Ami Ward, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
8:05 AM
THE CASE FOR A LARGE CATHEDRAL PEAK MAGMA CHAMBER, TUOLUMNE INTRUSIVE COMPLEX, SIERRA NEVADA
MEMETI, Valbone1, DURNING, Sadie1, PATERSON, Scott R.2, SCHOENE, Blair3 and YE, Julia Ann1, (1)Department of Geological Sciences, California State University Fullerton, 800 N State College Blvd, Fullerton, CA 92831, (2)Department of Earth Sciences, University of Southern California, Los Angeles, CA 90089-0740, (3)Princeton University Geosciences, 208 Guyot Hall, Princeton, NJ 08544-0001
8:25 AM
TITANITE PETROCHRONOLOGY AND BORON-ISOTOPE GEOCHEMISTRY OF THE TUOLUMNE INTRUSIVE SUITE, CA: INSIGHTS INTO PLUTONIC GROWTH AND EVOLUTION
WARD, Ami1, STEARNS, Michael A.2, COLEMAN, Drew S.1, KYLANDER-CLARK, Andrew3, RASBURY, E. Troy4, WOOTON, Kathleen M.4 and THOMAS, Kamron5, (1)Dept. of Earth, Marine and Environmental Sciences, University of North Carolina at Chapel Hill, Mitchell Hall, 104 South Rd. CB #3315, Chapel Hill, NC 27599, (2)Utah Valley University, 800 W University Pwky, Orem, UT 84058; Department of Earth Science, Utah Valley University, 800 W. University Pkwy., Orem, UT 84058, (3)Geological Sciences, UC, Santa Barbara, Department of Geological Sciences, UC Santa Barbara—Building 526, Santa Barbara, CA 93106-9630, (4)Geosciences, SUNY Stony Brook, Stony Brook, NY 11794-2100, (5)Utah Valley University, Orem, UT 84058
8:45 AM
REINTERPRETING COMPOSITIONAL ZONING OF THE CENTRAL WHITNEY PLUTON, SIERRA NEVADA, CALIFORNIA
HIRT, William, Biological and Physical Sciences, College of the Siskiyous, 800 College Avenue, Weed, CA 96094
 
9:05 AM
Break
9:20 AM
PLUTON EMPLACEMENT DURING NEVADAN OROGENESIS: THE ASHLAND PLUTON, KLAMATH MOUNTAINS, OR AND CA
BARNES, Calvin, Department of Geosciences, Texas Tech University, Lubbock, TX 79409-1053 and SYLVESTER, Paul, Department of Geosciences, Texas Tech University, Lubbock, TX 79409
9:40 AM
DRIPABILITY: DOCUMENTING A HETEROGENEOUS VISCOSITY STRUCTURE IN AND BENEATH POTENTIALLY FOUNDERING ARC LITHOSPHERE, NORTHERN VOLCANIC ZONE, ANDES
JOHNSON, Sophia, Department of Earth and Space Sciences, University of Washington, Johnson Hall 070, 1707 NE Grant Lane, Seattle, WA 98195, CONDIT, Cailey, Department of Earth and Space Sciences, University of Washington, 4000 15th Avenue NE, Seattle, WA 98107, BERNARD, Rachel, Department of Geology, Amherst College, 16 Barrett Hill Dr, Amherst, MA 01002 and IBANEZ-MEJIA, Mauricio, Department of Geosciences, University of Arizona, 1040 East 4th St, Tucson, AZ 85721
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