Session: The Rio Grande Rift: Exploring Connections between Deformation, Magmatism, Metamorphism, Sedimentation, Mineralization, and Mantle-to-Surface Processes during Continental Extension (GSA Connects 2024 Meeting in Anaheim, California)

Session No. 278

Wednesday, 25 September 2024: 1:30 PM-5:30 PM

304A (Anaheim Convention Center)

T177. The Rio Grande Rift: Exploring Connections between Deformation, Magmatism, Metamorphism, Sedimentation, Mineralization, and Mantle-to-Surface Processes during Continental Extension

Alyssa Abbey, Alexander Tye, Jason Ricketts and Joshua Rosera, Advocates

Paper #

Start Time

1:30 PM

Introductory Remarks

278-1

1:35 PM

MULTIPHASE DEFORMATION ALONG THE DEADMAN CREEK THRUST IN THE SANGRE DE CRISTO MOUNTAINS, COLORADO: SUPERPOSITION OF RIO GRANDE RIFT EXTENSION ON LARAMIDE CONTRACTION

PRIMUS, Miriam¹, SINGLETON, John¹, BROEDER, Hunter², MALAVARCA, Samantha², RAHL, Jeffrey³ and URSIN, Gabrielle³, (1)Department of Geosciences, Colorado State University, Fort Collins, CO 80523, (2)Department of Geosciences, Colorado State University, Fort Collins, CO 80523-1482, (3)Department of Earth and Environmental Geoscience, Washington and Lee University, 204 W Washington St, Lexington, VA 24450-2116

Recorded Presentation

278-2

1:50 PM

NEW INSIGHTS INTO LARAMIDE CONTRACTION, OLIGOCENE METAMORPHISM, AND RIO GRANDE RIFT EXTENSION IN THE SANGRE DE CRISTO RANGE (SOUTHERN COLORADO) FROM MID- AND LOW-TEMPERATURE THERMOCHRONOLOGY

SINGLETON, John, Department of Geosciences, Colorado State University, Fort Collins, CO 80523, GHAMEDI, Omar, Department of Geosciences, Colorado State University, Fort Collins, CO 80523-1482, MALAVARCA, Samantha, Department of Geosciences, Colorado State University, Warner College of Natural Resources, 1401 Campus Delivery, Fort Collins, CO 80523, SITAR, Michael, Department of Geosciences, Colorado State University, 1685 Beacon Street, Apt 2, Fort Collins, MA 02445, WONG, Martin, Earth and Environmental Geoscience, Colgate University, Hamilton, NY 13346, RAHL, Jeffrey, Department of Earth and Environmental Geoscience, Washington and Lee University, 204 W Washington St, Lexington, VA 24450-2116 and O'SULLIVAN, Paul, GeoSep Services, 1521 Pine Cone Road, Moscow, ID 83843

Recorded Presentation

278-3

2:05 PM

EARLY STAGES OF RIO GRANDE RIFT DEFORMATION RECORDED BY THE OLIGOCENE CHOKECHERRY GRANITE, SOUTHERN COLORADO.

MALAVARCA, Samantha¹, SINGLETON, John², HUDSON, Mark³, WONG, Martin⁴, RAHL, Jeffrey⁵, PRIMUS, Miriam⁶, BROEDER, Hunter¹ and MOSCATI, Richard J.⁷, (1)Department of Geosciences, Colorado State University, Warner College of Natural Resources, 1401 Campus Delivery, Fort Collins, CO 80523, (2)Department of Geosciences, Colorado State University, Fort Collins, CO 80523, (3)USGS, (4)Earth and Environmental Geoscience, Colgate University, Hamilton, NY 13346, (5)Department of Earth and Environmental Geoscience, Washington and Lee University, 204 W Washington St, Lexington, VA 24450-2116, (6)U.S. Geological Survey, Geosciences and Environmental Change Science Center, P.O. Box 25046, DFC, MS 980, Denver, CO 80225, (7)U.S. Geological Survey, Box 25046, MS 963, Denver Federal Center, Denver, CO 80225

Recorded Presentation

278-4

2:20 PM

FIDELITY OF RIFT BASIN RECORDS: HIGH PRECISION CHRONOLOGY AND BASIN SUBSIDENCE IN THE RIO GRANDE RIFT, SOCORRO, NM

SMITH, Tyson, U.S. Geological Survey, Geosciences and Environmental Change Science Center, Denver Federal Center, Denver, CO 80225; United States Geological Survey, Geosciences and Environmental Change Science Center, Denver Federal Center, P.O. Box 25046, MS 980, Denver, CO 80225-0046, GAYNOR, Sean P., U.S. Geological Survey, Geology, Geophysics, and Geochemistry Science Center, Denver, VA 80225, KELLER, C. Brenhin, Department of Earth Sciences, Dartmouth College, Hanover, NH 03755, ELLIS CURRY, Magdalena, Marine, Earth, and Atmospheric Sciences, North Carolina State University, 2800 Faucette Drive, Raleigh, NC 27695 and SCHOENE, Blair, Princeton University Geosciences, 208 Guyot Hall, Princeton, NJ 08544-0001

278-5

2:35 PM

LATE EOCENE INITIATION OF EXTENSION-RELATED HIGH-SILICA MAGMATISM AND MINERALIZATION IN THE SOUTHERN ROCKY MOUNTAINS

ROSERA, Joshua, U.S. Geological Survey, Geology, Energy & Minerals Science Center, Reston, VA 20192 and GAYNOR, Sean P., U.S. Geological Survey, Geology, Geophysics, and Geochemistry Science Center, Denver, VA 80225

2:50 PM

Discussion about early rifting and initiation stages

3:10 PM

Break

278-6

3:25 PM

SYN-RIFT MAGMATISM AND INCIPIENT RIFTING IN NW COLORADO: IMPLICATIONS FOR THERMAL EVOLUTION AND PRE-RIFT LITHOSPHERE COMPOSITION IN THE NORTHERN RIO GRANDE RIFT FROM GEODYNAMIC MODELS

HARRY, Dennis, MAYLE, Micah and ESPINOZA, Jorge, Department of Geosciences, Colorado State University, Fort Collins, CO 80523

Recorded Presentation

278-7

3:40 PM

KINEMATIC AND GEOCHRONOLOGIC EVIDENCE DOCUMENTING ROTATION OF CRUSTAL EXTENSION DIRECTION AND NARROWING OF RIFT FAULTING IN THE SUNKEN BLOCK GRABEN OF THE SOUTHERN RIO GRANDE RIFT, TRANS-PECOS TEXAS

KELSCH, Jesse Moore¹, RICKETTS, Jason², MA, Lin³ and RODRIGUEZ-GONZALEZ, Georgina³, (1)Natural Sciences, Sul Ross State University, US-90, Alpine, TX 79832, (2)Department of Earth, Environmental and Resource Sciences, The University of Texas at El Paso, 500 W University Ave, El Paso, TX 79902, (3)Department of Earth, Environmental and Resource Sciences, University of Texas at El Paso, 500 West University Avenue, El Paso, TX 79968

Recorded Presentation

278-8

3:55 PM

INSIGHTS INTO 8-7 MA RIO GRANDE INTEGRATION FROM STRATIGRAPHY AND DETRITAL-SANIDINE PROVENANCE OF LAKE SOCORRO, AN UPPER MIOCENE PLAYA-LAKE IN THE CENTRAL RIO GRANDE RIFT, NEW MEXICO

KONING, Daniel, NM Bureau of Geology and Mineral Resources/New Mexico Tech, 801 Leroy Place, New Mexico Tech, Socorro, NM 87801, HEIZLER, Matthew T., New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology, 801 Leroy Pl., Socorro, NM 87801, CHAMBERLIN, Richard M., New Mexico Bureau of Geology and Mineral Resources, New Mexico Institute of Mining and Technology, 801 Leroy Place, Socorro, NM 87801 and CONNELL, Sean D., Cheveron, Chevron Technical Center, 1500 Louisiana St, Houston, TX 77002

278-9

4:10 PM

REVISITING QUATERNARY FAULTING IN THE CENTRAL RIO GRANDE RIFT (Invited Presentation)

THOMPSON JOBE, Jessica A.¹, CLINE, Michael², REITMAN, Nadine³, BRIGGS, Richard¹, SION, Brad⁴, MAHAN, Shannon⁵, GRAY, Harrison J.⁶, ELLETT, Nicholas² and CHUPIK, Colin⁷, (1)U.S. Geological Survey, Geologic Hazards Science Center, 1711 Illinois St, Golden, CO 80401, (2)Bureau of Reclamation, Seismology and Geomorphology, Denver Federal Center, Denver, CO 80215, (3)U.S. Geological Survey, Geologic Hazards Science Center, Box 25046, MS 966, Denver Federal Center, Denver, CO 80225, (4)Division of Earth and Ecosystem Sciences, Desert Research Institute, 2215 Raggio Parkway, Reno, NV 89512, (5)U.S. Geological Survey, Geosciences and Environmental Change Science Center, Denver, CO 80225, (6)U.S. Geological Survey, Geosciences and Environmental Change Science Center, P.O. Box 25046, DFC, MS 980, Denver, CO 80225, (7)Bureau of Reclamation, Denver Federal Center, Denver, CO 80215

Recorded Presentation

278-10

4:30 PM

DIFFERENTIAL RIVER INCISION DUE TO QUATERNARY FAULTING AT THE NEXUS OF THE RÍO GRANDE RIFT AND JEMEZ LINEAMENT

CHAVEZ REED, Cameron and KARLSTROM, Karl, Department of Earth and Planetary Sciences, University of New Mexico, Northrop Hall, MSCO3-2040, 1 University of New Mexico, Albuquerque, NM 87131

Recorded Presentation

4:45 PM

Discussion about later rift stages and modern activity

5:00 PM

Concluding Remarks

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