Joint 118th Annual Cordilleran/72nd Annual Rocky Mountain Section Meeting - 2022

Session No. 18
Wednesday, 16 March 2022: 8:00 AM-12:00 PM
CBC-A 112 (UNLV Classroom Building Complex A)

T2. Neo-Insights into the Neoproterozoic of Western North America

 

William Guenthner, Kendra Murray, Devon Orme and David Pearson, Advocates
Paper #
Start Time
8:00 AM
PROTEROZOIC ROCK UNITS IN THE SOUTHERN BROOKS RANGE, ARCTIC ALASKA, TIES TO BALTICA?
CRAIG, Jason, Geological Sciences, Stanford University, 450 Jane Stanford Way, Building 320, Stanford, CA 94305 and MILLER, Elizabeth, Department of Geological Sciences, Stanford University, Stanford, CA 94305
8:20 AM
NEW STRUCTURAL, STRATIGRAPHIC, AND GEOCHRONOLOGIC CONSTRAINTS FROM NORTHEASTERN WASHINGTON WITH IMPLICATIONS FOR THE NEOPROTEROZOIC RIFTING OF RODINIA
EYSTER, Athena1, SMITH, Emily F.1, AGUILAR, Valerie1, MILLER, Rachel1 and WELLS-MORAN, Sarah2, (1)Department of Earth and Planetary Sciences, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, (2)Geosciences Department, Wellesley College, 106 Central St, Wellesley, MA 02481
8:40 AM
NEOPROTEROZOIC TO CAMBRIAN RIFTING IN THE NORTHERN ROCKY MOUNTAINS OF IDAHO AND MONTANA: A TECTONIC MODEL
PEARSON, David1, BRENNAN, Daniel2 and LINK, Paul K.1, (1)Department of Geosciences, Idaho State University, Pocatello, ID 83209, (2)School of Earth and Planetary Sciences, Curtin University, Perth, WA. 6102, AUSTRALIA
9:00 AM
PROTEROZOIC TECTONISM IN SOUTHWESTERN MONTANA: DEEP-TIME LOW-TEMPERATURE THERMOCHRONOLOGY OF BASEMENT ROCKS
KAEMPFER, Jenna, Department of Geology, University of Illinois at Urbana-Champaign, 1301 W. Green St., Urbana, IL 61801, GUENTHNER, William, Department of Geology, University of Illinois at Urbana-Champaign, Urbana, IL 61801 and PEARSON, David, Geosciences, Idaho State University, 921 S. 8th Ave, STOP 8072, Pocatello, ID 83209
9:20 AM
UPDATED NEOPROTEROZOIC-CAMBRIAN AGE MODEL AND SUBSIDENCE ANALYSIS OF THE NORTH AMERICAN CORDILLERAN MARGIN, NORTHERN UTAH AND SOUTHEAST IDAHO
DEHLER, Carol1, YONKEE, Adolph2, SCHMITZ, Mark3, SUNDBERG, Fred A.4, COTHREN, Hannah1 and ELLISON, Matthew5, (1)Department of Geology, Utah State University, 4505 Old Main Hill, Logan, UT 84322, (2)Department of Earth and Environmental Sciences, Weber State University, 1415 Edvalson St - DEPT 2507, Ogden, UT 84408-2507, (3)Department of Geosciences, Boise State University, Boise, ID 83725, (4)Museum of Northern Arizona, 3101 N Fort Valley Rd, Flagstaff, AZ 86001, (5)Gerhart Cole, 7657 S. Holden Street, Midvale, UT 84047
9:40 AM
CAN MARTITE FORMATION AND (U-TH)/HE CHRONOMETRY RECORD THE DEVELOPMENT OF ANCIENT NONCONFORMITIES?
JENSEN, Jordan and AULT, Alexis, Department of Geosciences, Utah State University, 4505 Old Main Hill, Logan, UT 84322
10:00 AM
TECTONOSTRATIGRAPHIC ANALYSIS OF THE NEOPROTEROZOIC MCCOY CREEK GROUP IN THE NORTHERN EGAN RANGE, EASTERN NEVADA
ZINTO, Joneel, Department of Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106
10:20 AM
SORTING SNOWBALLS IN DEATH VALLEY
NELSON, Lyle1, SMITH, Emily F.1 and MACDONALD, Francis A.2, (1)Department of Earth and Planetary Sciences, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, (2)Department of Earth Science, University of California, Santa Barbara, CA 93106
10:40 AM
EDIACARAN AND CAMBRIAN VOLCANICS OF NEVADA: IMPLICATIONS FOR THE LATE NEOPROTEROZOIC LAURENTIAN MARGIN”
MARTINEZ, Daniela, Departamento de Geología - Undergrad Student, Universidad de Sonora, Hermosillo, SON, SO 83000, Mexico, BARRON, Arturo, Geology Department, Universidad de Sonora, Blvd Luis Encinas y Rosales, Hermosillo, SO 83000, Mexico and HAGADORN, James, Dept. of Earth Sciences, Denver Museum of Nature & Science, 2001 N Colorado Blvd, Denver, 80205-5732, Mexico
11:00 AM
INVERTED NEOPROTEROZOIC GRABENS ON WESTERN NORTH AMERICAN AND SIBERIAN RIFT MARGINS: CONJUGATE PIERCING POINTS IN RODINIA?
SEARS, James, Department of Geosciences, University of Montana, Missoula, MT 59812
11:20 AM
EDIACARAN-CAMBRIAN RIFT RELATED VOLCANISM IN WESTERN LAURENTIA: ABORTED RIFT EVENT(S)?
BARRON, Arturo, Universidad de Sonora, Hermosillo, SON, 83000, Mexico, HAGADORN, James, Dept. of Earth Sciences, Denver Museum of Nature & Science, 2001 N Colorado Blvd, Denver, 80205-5732, Mexico, PAZ MORENO, Francisco A., Departamento de Geología, Universidad de Sonora, Blvd. Luis Encinas y Rosales, Hermosillo, 83000, Mexico, MARTINEZ, Daniela, Departamento de Geología - Undergrad Student, Universidad de Sonora, Hermosillo, SON, SO 83000, Mexico and HOLM-DENOMA, Chris, U.S. Geological Survey, Geology, Geophysics, and Geochemistry Science Center, Denver Federal Center, Denver, CO 80225
11:40 AM
THE LATEST NEOPROTEROZOIC HAFNIUM ISOTOPE EXCURSION: SNOWBALL EROSION OR PAN-AFRICAN OROGENS?
SUNDELL, Kurt, Dept. of Geosciences, University of Arizona, Tucson, AZ 85721 and MACDONALD, Francis, Department of Earth Science, University of California Santa Barbara, 1006 Webb Hall, Santa Barbara, CA 93117
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