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Cordilleran Section - 121st Annual Meeting - 2025

Session No. 2
Wednesday, 2 April 2025: 8:00 AM-12:00 PM
Fresno (Holiday Inn Sacramento Downtown - Arena)

T11. Mysteries of the Sierra Nevada

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

 

Craig Jones, Christopher Henry, Matt ONeal and Peter Holland, Advocates
Paper #
Start Time
2-1
8:00 AM
OCEAN-CORE COMPLEXES FORMED AT SLOW-SPREADING RIDGES CAN EXPLAIN THE ULTRAMAFIC-SUPRACRUSTAL CONTACTS COMMONLY EXPOSED IN SIERRA NEVADA METAMORPHIC BELTS
SHIMABUKURO, David, Department of Geology, California State University, Sacramento, CA 95819 and WAKABAYASHI, John, Department of Earth and Environmental Sciences, California State University, Fresno, CA 93740
2-2
8:20 AM
TIMING AND CRUSTAL INFLUENCES OF EARLY AND LATE JURASSIC ARC MAGMATISM IN THE LAKE COMBIE COMPLEX, SIERRA NEVADA METAMORPHIC PROVINCE, CALIFORNIA
RACK, Sierra and ROESKE, Sarah M., Earth and Planetary Sciences, University California- Davis, One Shields Avenue, Davis, CA 95616
2-3
8:40 AM
MID-CRETACEOUS DEFORMATION AND ISOTOPIC DISTURBANCE OF THE NEOPROTEROZOIC-PALEOZOIC METASEDIMENTARY FRAMEWORK OF THE SOUTHWESTERN SIERRA NEVADA ARC
ROGERS, Lucy1, GEVEDON, Michelle1, CONCHA, Christian A.2 and CLEMENS-KNOTT, Diane2, (1)Geology Department, Colorado College, Colorado Springs, CO 80946, (2)Department of Geological Sciences, California State University Fullerton, 800 North State Blvd., Fullerton, CA 92831
2-4
9:00 AM
EVIDENCE AT THE SUTTER BUTTES VOLCANO FOR TOPOGRAPHIC EVOLUTION OF THE SACRAMENTO VALLEY, NORTHERN CALIFORNIA
HAUSBACK, Brian, Geology, California State University, Sacramento, 6000 J Street, Sacramento, CA 95819-6043, LANGENHEIM, Victoria, U.S. Geological Survey, Geology, Minerals, Energy, and Geophysics Science Center, P.O. Box 158, Moffett Field, CA 94035 and SWISHER III, Carl, Department of Earth and Planetary Sciences, Rutgers University, 610 Taylor Road, Piscataway, NJ 08854
2-5
9:20 AM
GEOLOGY ALONG THE AMADOR CENTRAL RAILROAD: SPEEDER CARS TO ACCRETION
HOLLAND, Peter1, WOOD, Jim2, ONEAL, Matt1 and MCCRINK, Timothy1, (1)California Department of Conservation, California Geological Survey, 715 P Street, Sacramento, CA 95814, (2)Sierra Geological Services, Colfax, CA 95713
 
9:40 AM
Break
2-6
10:00 AM
STRATIGRAPHY AND EVOLUTION OF THE ANCESTRAL RIVER CHANNELS (PALEOVALLEYS), NORTHERN SIERRA NEVADA, USA
HENRY, Christopher, Nevada Bureau of Mines and Geology, University of Nevada, Reno, Reno, NV 89557, HEIZLER, Matthew T., New Mexico Bureau of Geology & Mineral Resources, New Mexico Tech, Socorro, NM 87801, ONEAL, Matt, California Geological Survey, Sacramento, CA 95814 and WOOD, Jim, Sierra Geological Services, Colfax, CA 95713
2-7
10:20 AM
ANALYSIS OF AN INTRACANYON FLOW IN THE CENTRAL SIERRA NEVADA, CA AS EVIDENCE FOR NEOGENE TILTING AND UPLIFT
SHIELDS, Jessie, Geological Sciences and Engineering, University of Nevada, Reno, NV 89557 and PLUHAR, Christopher J., Earth and Environmental Sciences, California State University, Fresno, 2576 E San Ramon Ave, M/S ST24, Fresno, CA 93740
2-8
10:40 AM
CENOZOIC SIERRA NEVADA TILTING: THE BIG STORY FROM CENTRAL VALLEY STRATIGRAPHY
PHILLIPS, Fred, Earth & Environmental Science Dept, New Mexico Tech, 801 Leroy Place`, Socorro, NM 87801
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