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Cordilleran Section - 119th Annual Meeting - 2023

Session No. 10
Wednesday, 17 May 2023: 1:30 PM-4:30 PM
Whitney Peak Ballroom 2 (The Whitney Peak Hotel)

T1. Evolution of Transcrustal Cordilleran Arc Systems

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

 

Katie Ardill, Wenrong Cao and Barbara C. Ratschbacher, Advocates
Paper #
Start Time
 
1:30 PM
Introductory Remarks
10-1
1:35 PM
GEOLOGY OF A LARGE INTACT EXTENSIONAL OCEANIC ARC CRUSTAL SECTION WITH SUPERIOR EXPOSURES: CRETACEOUS ALISITOS ARC, BAJA CALIFORNIA (MEXICO)
BUSBY, Cathy, Department of Earth and Planetary Sciences, University of California - Davis, Davis, CA 95616, MORRIS, Rebecca, School of Earth & Ocean Sciences, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, CANADA, DEBARI, Susan M., Geology Department, Western Washington University, 516 High St, Bellingham, WA 98225, MEDYNSKI, Sarah, Centre Scientifique et Technique du Bâtiment, Champs-sur-Marne, 77447, France, PUTIRKA, Keith, Department of Earth and Environmental Sciences, California State University - Fresno, Fresno, CA 93740, ANDREWS, Graham, Geology and Geography, West Virginia University, Brooks Hall G33, 98 Beechurst Ave, Morgantown, WV 26506, SCHMITT, Axel K., Institute of Earth Sciences, Heidelberg University, Im Neuenheimer Feld 234-236, Heidelberg, 69120, Germany and BROWN, Sarah R., Department of Geology & Geography, West Virginia University, 98 Beechurst Avenue, Morgantown, WV 26506
10-2
1:55 PM
CONTINENTALIZATION OF AN INTRAOCEANIC ARC: THE CASE FROM THE JURASSIC BONANZA ARC, VANCOUVER ISLAND, CANADA
CANIL, Dante, School of Earth and Ocean Sciences, University of Victoria, 3800 Finnerty Road, Victoria, BC V8W3V6, Canada and MORRIS, Rebecca, School of Earth & Ocean Sciences, University of Victoria, 3800 Finnerty Road, Victoria, BC V8P 5C2, CANADA
10-3
2:15 PM
SPECULATIONS ON MAGMA ADDITIONS AND TERRANE ACCRETIONS IN THE KLAMATH MOUNTAINS, CA/OR
YOSHINOBU, Aaron, Department of Geosciences, Texas Tech University, Lubbock, TX 79409, RICHARDSON, Andrea, Department of Geosciences, Texas Tech University, 1200 Memorial Circle, Lubbock, TX 79409 and BARNES, Calvin, Department of Geosciences, Texas Tech University, Lubbock, TX 79409-1053
10-4
2:35 PM
DO BACK-ARC SIERRAN-LIKE PLUTONS IN THE SOUTHWEST USA SIGNAL MID-CRETACEOUS SLAB ROLLBACK?
HOWARD, Keith, 345 Middlefield Rd, Menlo Park, CA 94025-3561, ALLEN, Charlotte M., Central Analytical Research Facility and School of Earth and Atmospheric Sciences, Queensland University of Technology, 2 George St, Brisbane, QLD 4001, Australia and WOODEN, Joseph L., U.S. Geological Survey, Retired, Menlo Park, CA 94025
 
2:55 PM
Break
10-5
3:10 PM
EFFICIENT FRACTIONAL CRYSTALLIZATION AND EARLY ZIRCON SATURATION IN AN UPPER CRUSTAL ARC MAFIC INTRUSION: HIDDEN LAKES MAFIC COMPLEX, SIERRA NEVADA BATHOLITH
LEWIS, Madeline, Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, West Lafayette, IN 47907 and EDDY, Michael, Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, 550 Stadium Mall Drive, West Lafayette, CA 47907
10-6
3:30 PM
STRUCTURE AND AGE OF ORTHOGNEISSES WITHIN THE EAST-CENTRAL SKAGIT GNEISS COMPLEX; INSIGHTS INTO THE MAGMATIC EVOLUTION OF THE NORTH CASCADES ARC
HOINVILLE, Alex R.1, GORDON, Stacia M.1 and MILLER, Robert B.2, (1)Department of Geological Sciences, University of Nevada, Reno, 1664 N. Virginia Street, Reno, NV 89557, (2)Geology Department, San Jose State University, San Jose, CA 95192
10-7
3:50 PM
SUBDUCTION VELOCITY CONTROLS ON ARC MAGMATISM ALONG LONG-LIVED NE ASIA CORDILLERAN ARC SYSTEM
WU, Jeremy Tsung-Jui1, WU, Jonny2, WU, Yangming3, CHEN, Lingling4, JUN, Mikyoung4 and RAHIMZADEH BAJGIRAN, Moloud2, (1)Department of Earth and Atmospheric Sciences, University of Houston, Houston, TX 77204, (2)Department of Earth and Atmospheric Sciences, University of Houston, 3507 Cullen Blvd, Rm. 233, Houston, TX 77204-5008, (3)School of Earth Science and Engineering, Sun Yat-Sen University, Guangzhou, Guangdong 510275, China, (4)Department of Mathematics, University of Houston, Houston, TX 77204
 
4:10 PM
Concluding Remarks
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