Cordilleran Section - 116th Annual Meeting - 2020

Session No. 28
Thursday, 14 May 2020: 8:00 AM-12:00 PM
Plaza Room (The Westin Pasadena)

T7. Integrated Subduction Zone Systems: Advances in Understanding Landscape Evolution, Deformation, and Tectonics

 

Melanie J. Michalak, Francis Sousa and Rebecca Dorsey, Advocates
Paper #
Start Time
8:00 AM
NEW DETRITAL ZIRCON DATA FROM THE WESTERNMOST OUACHITA-MARATHON-SONORA SUTURE BELT: IMPLICATIONS FOR WESTERN LAURENTIAN TECTONICS AND CLOSURE OF THE RHEIC OCEAN
RIGGS, Nancy R.1, NAVAS-PAREJO, Pilar2, MARTINI, Michelangelo3 and PRINGLE, Claire K.1, (1)School of Earth and Sustainability, Northern Arizona University, PO Box 4099, Flagstaff, AZ 86011-4099, (2)Instituto de Geología-UNAM, Estación Regional del Noroeste, Hermosillo, 83000, Mexico, (3)Instituto de Geología, Universidad Nacional Autónoma de México, Mexico City, 04510, Mexico
8:20 AM
PENNSYLVANIAN-PERMIAN EVOLUTION OF THE DARWIN BASIN: A BASIN DEVELOPED OVER THE NASCENT CORDILLERAN SUBDUCTION ZONE
VAUGHN, Lochlan W., Earth and Environmental Science, New Mexico Institute of Mining and Technology, 801 Leroy Pl, Socorro, NM 87801 and LEARY, Ryan J., Department of Earth and Environmental Science, New Mexico Institute of Mining and Technology, 801 Leroy Pl., Socorro, NM 87801
8:40 AM
EXPOSURES AT BLIND AND NORTH SHELL BEACHES, SONOMA COUNTY COAST, CALIFORNIA: INSIGHT INTO MÉLANGE-FORMING PROCESSES AND SUBDUCTION SLIP ACCOMMODATION
WAKABAYASHI, John, Earth and Environmental Sciences, California State University Fresno, 2576 E San Ramon Ave, M/S ST24, Fresno, CA 93740
9:00 AM
ROTATION OF THE OREGON COAST RANGE: A CAUTIONARY TALE
BIASI, Joseph A.1, SOUSA, Francis J.2 and ACITO, Sydney2, (1)Division of Geological and Planetary Sciences, California Institute of Technology (Caltech), 1200 E. California Blvd., Pasadena, CA 91125, (2)College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331
 
9:20 AM
Break
9:35 AM
INITIATION, UPLIFT, AND ISOLATION OF THE COOS BAY BASIN, SOUTHWESTERN OREGON: NEW INSIGHTS FROM U-PB DETRITAL ZIRCON DATA
ARMENTROUT, John M., DARIN, Michael H., DORSEY, Rebecca J. and COOKE, Sam S., Department of Earth Sciences, University of Oregon, 100 Cascade Hall, 1272 University of Oregon, Eugene, OR 97403-1272
9:55 AM
LATE CRETACEOUS AGE OF THE DOTHAN FORMATION, SW OREGON: IMPLICATIONS FOR EOCENE GROWTH OF THE NORTHERN KLAMATH MOUNTAINS DURING COLLISION AND ACCRETION OF SILETZIA
DORSEY, Rebecca J.1, MICHALAK, Melanie J.2, SOUSA, Francis J.3 and ACITO, Sydney3, (1)Department of Earth Sciences, University of Oregon, Eugene, OR 97403, (2)Geology Department, Humboldt State University, 1 Harpst Street, Arcata, CA 95521, (3)College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331
10:15 AM
AR-AR DATING OF DETRITAL MICAS FROM THE EARLY EOCENE UMPQUA GROUP, SW OREGON: IMPLICATIONS FOR SEDIMENT PROVENANCE AND PALEORIVER MODELS
ACITO, Sydney1, SOUSA, Francis J.1, DORSEY, Rebecca2, COX, Stephen E.3 and HEMMING, Sidney4, (1)College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, (2)Dept. Geological Sicneces, University of Oregon, 1272 University of Oregon, Eugene, OR 97403, (3)Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, (4)LDEO, Columbia University, Palisades, NY 10964
10:35 AM
PALEOTOPOGRAPHY OF THE KLAMATH MOUNTAINS PROVINCE REVEALED BY U-PB DETRITAL ZIRCON AGES AND HF ISOTOPES FROM THE LATE CRETACEOUS TO EOCENE MONTGOMERY CREEK FORMATION
MICHALAK, Melanie J.1, KINSER, Dylan1, MORALES, Edward1, ACITO, Sydney2, DORSEY, Rebecca J.3 and SOUSA, Francis J.2, (1)Geology Department, Humboldt State University, 1 Harpst Street, Arcata, CA 95521, (2)College of Earth, Ocean, and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331, (3)Dept. of Geological Sciences, University of Oregon, 1272 University of Oregon, Eugene, OR 97403
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