GSA Connects 2021 in Portland, Oregon

Session No. 5
Sunday, 10 October 2021: 8:00 AM-12:00 PM
Portland Ballroom 257 (Hybrid Room) (Oregon Convention Center)

T2. Cenozoic Tectonism, Magmatism, Sedimentation, and Landscape Evolution in the Intermountain West I

GSA Structural Geology and Tectonics Division; GSA Sedimentary Geology Division; GSA Geochronology Division; GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; Geochemical Society

 

Theresa Schwartz, Amy K. Gilmer and Jens-Erik Lund Snee, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
SCHWARTZ, Theresa, U.S. Geological Survey, Geosciences and Environmental Change Science Center, P.O. Box 25046, DFC, MS 980, Lakewood, CO 80225, LUND SNEE, Jens-Erik, U.S. Geological Survey, Denver, CO 80225 and GILMER, Amy K., Geosciences and Environmental Change Science Center, U.S. Geological Survey, PO Box 25046 MS 980, Denver, CO 80225
5-1
8:05 AM
THE NORTH AMERICAN CORDILLERAN ANATECTIC BELT (Invited Presentation)
CHAPMAN, James, Geology and Geophysics, University of Wyoming, Geology and Geophysics Dept., 1000 E. University Ave, Laramie, WY 82071
5-2
8:25 AM
DEFORMATION IN CRETACEOUS STRATA NEAR THE FRONTAL LIMIT OF LARAMIDE TECTONISM, DEVILS RIVER UPLIFT REGION OF SOUTHWEST TEXAS, USA
FERRILL, David1, SMART, Kevin1, EVANS, Mark A.2, CAWOOD, Adam J.1, MORRIS, Alan P.1, MCGINNIS, Ronald N.1, LEHRMANN, Daniel3, SICKMANN, Zachary T.4 and BELLOW, Harrison B.1, (1)Space Science & Engineering Division, Southwest Research Institute, 6220 Culebra Road, San Antonio, TX 78238-5166, (2)Department of Geological Sciences, Central Connecticut State University, 1615 Stanley Street, New Britain, CT 06050, (3)Geosciences, Trinity University, One Trinity Place, San Antonio, TX 78212, (4)Department of Geological Sciences, University of Texas at Austin, 4525 Speedway, Austin, TX 78751
5-3
8:40 AM
PALEOGENE BASEMENT THRUST REACTIVATION OF MESOZOIC NORMAL FAULTS: EVIDENCE FROM THE LOBO FORMATION, SOUTHWEST NEW MEXICO
COPELAND, Peter1, LAWTON, Timothy2, HALL, Stuart1, GARBER, Jarret1, SOLARI, Luigi3, WHITE, Shantel1, DE LOS SANTOS, Marie4, DAILEY, Sarah1, BYERS, Callum1, NGYUEN, Ashley1 and HERRERA, Viktor1, (1)Earth and Atmos. Sci, University of Houston, 312 Science and Research 1, 3507 Cullen BLvd, Houston, TX 77204, (2)University of Texas at Austin, Bureau of Economic Geology, 10611 Exploration Way, Austin, TX 78758, (3)Universidad Nacional Autónoma de México, Centro de Geociencias, Campus Juriquilla, Santiago de Querétaro, 76001, Mexico, (4)Dept. of Geosci., Univ. of Arizona, Tucson, AZ 85721
5-4
8:55 AM
EOCENE SKYSCRAPERS: HIGH TOPOGRAPHY OF THE NORTHERN U.S. CORDILLERA FOLLOWING MESOZOIC COMPRESSION
YOUNG-DAHL, Erin, Moscow, ID 83843-4421, CASSEL, Elizabeth, Geological Sciences, University of Idaho, 875 Perimeter Drive MS 3022, Moscow, ID 83844 and BREECKER, Daniel O., Department of Geological Sciences, The University of Texas at Austin, Austin, TX 78712
5-5
9:10 AM
DO LACUSTRINE INUNDATION PATTERNS RECORD EARLY EXTENSION IN THE LARAMIDE FORELAND PROVINCE? INSIGHTS FROM COMPARISONS WITH MODERN BASEMENT ELEVATIONS
SMITH, Michael, School of Earth and Sustainability, Northern Arizona University, 624 S Knoles Drive, Flagstaff, AZ 86011 and CASSEL, Elizabeth, Geological Sciences, University of Idaho, 875 Perimeter Drive MS 3022, Moscow, ID 83844
 
9:25 AM
Break
5-6
9:35 AM
CHRONOFACIES CONVERGENCE AND DYNAMIC DRAINAGE EVOLUTION IN AN EOCENE BROKEN FORELAND: BRIDGER BASIN, WYOMING, USA
CARROLL, Alan1, GREGORICH, Holly2, HAMMOND, Alexander P.3, HONIG, Shlomo1, PARRISH, Ethan1, SCHWADERER, Colby1 and SMITH, Michael2, (1)Department of Geoscience, University of Wisconsin-Madison, 1215 W Dayton St, Madison, WI 53706, (2)School of Earth and Sustainability, Northern Arizona University, 624 S Knoles Drive, Flagstaff, AZ 86011, (3)1210 N. 62nd St., Apt. 412, Wauwatosa, WI 53213
5-7
9:50 AM
EOCENE BASIN RECORD OF EXTENSIONAL DEFORMATION IN SOUTHWEST MONTANA
THORESEN, Haley, Geological Sciences, University of Idaho, 875 Perimeter Drive MS 3022, Moscow, ID 83843-2214, CASSEL, Elizabeth, Geological Sciences, University of Idaho, 875 Perimeter Drive MS 3022, Moscow, ID 83844 and SMITH, Michael, School of Earth and Sustainability, Northern Arizona University, 624 S Knoles Drive, Flagstaff, AZ 86011
5-8
10:05 AM
EOCENE MAGMATISM AND EXTENSION IN SOUTHWEST MONTANA: PRELIMINARY AGE AND GEOCHEMICAL CONSTRAINTS ON THE DILLON VOLCANIC GROUP
MOSOLF, Jesse1, MCDONALD, Catherine1 and KYLANDER-CLARK, Andrew2, (1)Montana Bureau of Mines and Geology, Montana Tech, Butte, MT 59701, (2)Department of Earth Science, University of California, Santa Barbara, CA 93106
5-9
10:20 AM
MAGMATIC HISTORY OF THE GRIZZLY PEAK CALDERA, SAWATCH RANGE, COLORADO
FRAZER, Ryan1, GILMER, Amy K.1, SOUDERS, A. Kate2 and THOMPSON, Ren1, (1)U.S. Geological Survey, Geosciences and Environmental Change Science Center, PO Box 25046 MS 980, Denver, CO 80225, (2)U.S. Geological Survey, Geology, Geophysics, and Geochemistry Science Center, PO Box 25046 MS 973, Denver, CO 80225
10:35 AM
TIMESCALES OF MAGMATISM DURING LARGE-SCALE EXTENSION: NEW CA-TIMS U-PB ZIRCON GEOCHRONOLOGY OF LATE-MIOCENE INTRUSIONS, CENTRAL DEATH VALLEY, CALIFORNIA
CHAN, Christine1, MCLEAN, Noah M.1, THOMPSON, Ren A.2, GILMER, Amy3, ANDREW, Joseph1 and SOUDERS, A. Kate2, (1)Department of Geology, The University of Kansas, Lawrence, KS 66045, (2)U.S. Geological Survey, Denver, CO 80225, (3)U.S. Geological Survey, Geosciences and Environmental Change Science Center, Denver, CO 80225
 
10:50 AM
Discussion
 
11:10 AM
Concluding Remarks
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