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Rocky Mountain Section - 73rd Annual Meeting - 2023

Session No. 22
Thursday, 25 May 2023: 8:00 AM-12:00 PM
Longs Peak 302A (Lory Student Center)

T9. Tectonism and Magmatism in the Rio Grande Rift

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

 

Gregory Stark, John Singleton, W. Scott Baldridge and Kenneth Sims, Advocates
Paper #
Start Time
22-1
8:00 AM
LITHOSPHERE AND ASTHENOSPHERE MAGMA SOURCES IN THE RIO GRANDE RIFT - INSIGHTS FROM GEODYNAMIC MODELS
HARRY, Dennis, MAYLE, Micah and CROCKER, Eli, Department of Geosciences, Colorado State University, Fort Collins, CO 80521
22-2
8:20 AM
DECONSTRUCTING THE EVOLUTIONARY HISTORY OF SUMMER COON VOLCANO, COLORADO: EVIDENCE FROM GEOCHEMISTRY AND RADIOGENIC ISOTOPES
STARK, Gregory J. and SIMS, Kenneth, Department of Geology and Geophysics, University of Wyoming, Laramie, WY 82071
22-3
8:40 AM
MAGMA MIXING IN THE HINSDALE MAGMATIC SYSTEM, NORTHERN RIO GRANDE RIFT IN SOUTHERN COLORADO AND NORTHERN NEW MEXICO, USA
GILMER, Amy, PhD1, THOMPSON, Ren1, TURNER, Kenzie1 and MORGAN, Leah2, (1)Geosciences and Environmental Change Science Center, U.S. Geological Survey, PO Box 25046 MS 980, Denver, CO 80225, (2)U.S. Geological Survey, Geology, Geochemistry, and Geophysics Science Center, Denver, CO 80225
22-4
9:00 AM
THE JEMEZ MOUNTAINS VOLCANIC FIELD (JMVF): A PETROLOGIC HISTORY
WOLFF, John, School of the Environment, Washington State University, PO Box 642812, Pullman, WA 99164, RAMOS, Frank C., Department of Geological Sciences, New Mexico State University, PO Box 30001, MSC 3AB, Las Cruces, NM 88003, ROWE, Michael C., School of Environment, University of Auckland, Auckland, 1142, New Zealand, WU, Jie, School of the Environment, University of Auckland, Auckland, 1142, New Zealand, BORO, Joseph R., School of the Environment, Washington State University, Pullman, WA 99164 and SELF, Stephen, Earth and Planetary Science, University of California, Berkeley, Berkeley, CA 94720
22-5
9:20 AM
EVIDENCE FROM VOLCANIC ROCK XENOCRYSTS FOR ONSET OF EXTENSIONAL TECTONISM IN NORTHERNMOST RIO GRANDE RIFT SYSTEM, COLORADO
FARMER, G. Lang, Department of Geological Sciences and CIRES, University of Colorado, Boulder, CO 80309, ELLISON, Eric T., Department of Geological Sciences, University of Colorado, Boulder, CO 80309 and BELL, Aaron, Geological Sciences, University of Colorado Boulder, 2200 Colorado Ave, 2200 Colorado Ave. Rm #285, Boulder, CO 80309
22-6
9:40 AM
CENOZOIC METAMORPHISM AND ALONG-STRIKE PEAK TEMPERATURES IN THE PENNSYLVANIAN MINTURN FORMATION IN THE SANGRE DE CRISTO RANGE: UNRAVELING THE COMPLEX THERMAL HISTORY OF THE RIO GRANDE RIFT IN SOUTHERN COLORADO
MALAVARCA, Samantha, Department of Geosciences, Colorado State University, Warner College of Natural Resources, 1401 Campus Delivery, Fort Collins, CO 80523, SINGLETON, John, Department of Geosciences, Colorado State University, Fort Collins, CO 80523, SITAR, Michael, Department of Geosciences, Colorado State University, Fort Collins, CO 80523-1482, RAHL, Jeffrey, Department of Earth and Environmental Geoscience, Washington and Lee University, 204 W Washington St, Lexington, VA 24450-2116 and MAGLOUGHLIN, J.F., Warner College of Natural Resources, Colorado State University, 400 University Ave, Fort Collins, CO 80523
22-7
10:00 AM
TECTONIC EVOLUTION OF THE NORTHERN SANGRE DE CRISTO MOUNTAINS, COLORADO, USA
LINDSEY, David A. and CAINE, Jonathan, U.S. Geological Survey, Box 25046, Denver Federal Center, MS 973, Denver, CO 80225-0046
22-8
10:20 AM
LATE OLIGOCENE TO EARLY MIOCENE EXTENSIONAL REACTIVATION OF THE INDEPENDENCE MINE SHEAR ZONE IN THE SANGRE DE CRISTO RANGE, SOUTHERN COLORADO
SITAR, Michael1, SINGLETON, John1, RAHL, Jeffrey2, CAINE, Jonathan Saul3 and KING, Jacob1, (1)Department of Geosciences, Colorado State University, Fort Collins, CO 80523-1482, (2)Department of Earth and Environmental Geoscience, Washington and Lee University, 204 W Washington St, Lexington, VA 24450-2116, (3)U.S. Geological Survey, Geology, Geophysics, and Geochemistry Science Center, Denver, CO 80225
22-9
10:40 AM
REFINING THE PRE- AND SYN-RIO GRANDE RIFT COOLING HISTORY ACROSS THE SANGRE DE CRISTO RANGE AND ALVARADO FAULT THROUGH APPLICATION OF MID- TO LOW-TEMPERATURE THERMOCHRONOMETRY
GHAMEDI, Omar1, SINGLETON, John2, SITAR, Michael1, RAHL, Jeffrey3, WONG, Martin4, O'SULLIVAN, Paul5, HURTADO, Cece6 and MALAVARCA, Samantha7, (1)Department of Geosciences, Colorado State University, Fort Collins, CO 80523-1482, (2)Department of Geosciences, Colorado State University, Fort Collins, CO 80523, (3)Department of Earth and Environmental Geoscience, Washington and Lee University, 204 W Washington St, Lexington, VA 24450-2116, (4)Earth and Environmental Geoscience, Colgate University, Hamilton, NY 13346, (5)GeoSep Services, 1521 Pine Cone Road, Moscow, ID 83843, (6)Department of Geosciences, Colorado State University, Fort Collins, CO 80521, (7)Department of Geosciences, Colorado State University, Warner College of Natural Resources, 1401 Campus Delivery, Fort Collins, CO 80523
22-10
11:00 AM
CONSTRAINING THE OLIGOCENE-MIOCENE TRANSITION FROM CLOSED BASIN RIFT SEDIMENTATION DURING THE EARLIEST STAGES OF THE ANCESTRAL RIO GRANDE FLUVIAL SYSTEM, SOUTH-CENTRAL NEW MEXICO
SCHNEIDER, Ethan1, HAMPTON, Brian A.1 and RIDL, Shay2, (1)Department of Geological Sciences, New Mexico State University, Las Cruces, NM 88003, (2)Earth & Environmental Sciences, University of Iowa, Iowa City, IA 52242
22-11
11:20 AM
A SHALLOW RIFT BASIN SEGMENTED IN SPACE AND TIME: THE SOUTHERN SAN LUIS BASIN, RIO GRANDE RIFT, NORTHERN NEW MEXICO
DRENTH, Benjamin, U.S. Geological Survey, Geology, Geophysics, and Geochemistry Science Center, W 6th Kipling St., MS 964, Denver, CO 80225, GRAUCH, V.J.S., U.S. Geological Survey, Box 25046, DFC, MS 964, Denver, CO 80225, TURNER, Kenzie, U.S. Geological Survey, Geosciences and Environmental Change Science Center, P.O. Box 25046, DFC, MS 980, Denver, CO 80225, RODRIGUEZ, Brian D., U.S. Geological Survey, Box 25046, MS 964, Denver, CO 80225, THOMPSON, Ren A., U.S. Geological Survey, Geosciences and Environmental Change Science Center, PO Box 25046 MS 980, Denver, CO 80225 and BAUER, Paul W., New Mexico Bureau of Geology, 801 Leroy Place, Socorro, NM 87801
22-12
11:40 AM
INFLUENCE OF GLACIAL EROSION AND MELT ON THE SANGRE DE CRISTO NORMAL FAULT SYSTEM, SOUTHERN COLORADO
HURTADO, Cece and GALLEN, Sean, Department of Geosciences, Colorado State University, Fort Collins, CO 80521
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