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Joint 120th Annual Cordilleran/74th Annual Rocky Mountain Section Meeting - 2024

Session No. 20
Thursday, 16 May 2024: 8:00 AM-12:00 PM
Cedar Ballroom (Davenport Grand Hotel)

T5. The Boring Billion was not so Boring! Mesoproterozoic Tectonics, Sedimentation, and Geochronology of Northwest Laurentia I

 

Robert Thomas and Paul K. Link, Advocates
Paper #
Start Time
 
8:00 AM
Introduction Paul Link
 
8:05 AM
Introductory Remarks
20-1
8:25 AM
A TRIBUTE TO DON WINSTON, MONTANA FIELD GEOLOGIST
THOMAS, Robert, Environmental Sciences Department, University of Montana Western, 710 S. Atlantic St., Box 83, Dillon, MT 59725
20-2
8:45 AM
BELT-SIBERIA CONNECTION: MATCHING LIPS TIGHTEN PROTEROZOIC RODINIA RESTORATION AND MAY IMPLY A MULTIPOLAR GEOMAGNETIC FIELD
SEARS, James, Department of Geosciences, University of Montana, Missoula, MT 59812
20-3
9:05 AM
REVISITING RED BEDS: MAGNETIC ANALYSES OF THE SPOKANE, GRINNELL, AND APPEKUNNY FORMATIONS, BELT-PURCELL SUPERGROUP, MT
SLOTZNICK, Sarah, ZIELINSKI, Laurie and MOEHL, Olivia C., Department of Earth Sciences, Dartmouth College, Hanover, NH 03755
20-4
9:25 AM
THE MESOPROTEROZOIC BELT–LEMHI CONNECTION, WESTERN MONTANA AND EAST-CENTRAL IDAHO
LONN, Jeffrey D.1, BURMESTER, Russell F.2 and LEWIS, Reed S.2, (1)Montana Bureau of Mines and Geology, 1505 West Park Street, Butte, MT 59701, (2)Idaho Geological Survey, University of Idaho, 875 Perimeter Dr., MS 3014, Moscow, ID 83844
20-5
9:45 AM
STRATIGRAPHY OF MESOPROTEROZOIC UNITS PR1 AND PR2 IN THE COAL CREEK INLIER, YUKON, CANADA: POSSIBLE PINGUICULA GROUP CORRELATIVES
WEBB, Lucy C.1, AMBROSE, Tyler K.2, HALVERSON, Galen P.3 and SPERLING, Erik A.1, (1)Department of Earth and Planetary Sciences, Stanford University, Stanford, CA 94305, (2)Yukon Geological Survey, Whitehorse, YT Y1A 0R3, Canada, (3)Department of Earth and Planetary Sciences, McGill University, Montreal, QC H3A 0E8, Canada
20-6
10:05 AM
ASSESSMENT OF THE TECTONIC HISTORY RECORDED WITHIN DETRITAL ZIRCONS RECOVERED FROM HIGH GRADE METASEDIMENTARY ROCKS IN THE ELK CITY REGION OF CENTRAL IDAHO
SCHWARTZ, Darin, Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725 and DI FIORI, Russell, PhD, PG Idaho, Idaho Geological Survey, University of Idaho, 875 Perimeter Dr., MS 3014, Moscow, ID 83844
 
10:25 AM
Break
20-7
10:40 AM
NOXON/LEMHI ARCH AND RIFT:  A MAJOR PROTEROZOIC/PALEOZOIC NORTH AMERICAN PLATE BOUNDARY
WHITE, Brian G., NIOSH Spokane Research Laboratory (Retired)
20-8
11:00 AM
SPECULATION ON THE AGES AND RELATIVE STRATIGRAPHIC POSITIONS OF BELT SUPERGROUP-EQUIVALENT ROCKS OF THE LEMHI SUBBASIN, EAST-CENTRAL IDAHO AND SOUTHWESTERN MONTANA
PEARSON, David M., Department of Geosciences, Idaho State University, Pocatello, ID 83201, SUNDELL, Kurt E., Department of Geosciences, Idaho State University, 921 S. 8th Ave. Stop 8072, Pocatello, ID 83209 and PARKER, Stuart, Montana Bureau of Mines and Geology, 1300 West Park St., Butte, MT 59701
20-9
11:20 AM
THE LATE MESOPROTEROZOIC, POST-BELT, TECTONIC RECORD OF NORTHEASTERN WASHINGTON AND NORTHERN IDAHO: EVIDENCE OF GRENVILLE-AGE TECTONISM?
BRENNAN, Daniel, Montana Bureau of Mines and Geology, 1300 West Park St., Butte, MT 59701; Earth Dynamics Research Group, Curtin University, Perth, WA. 6102, AUSTRALIA, LI, Zheng-Xiang, Earth Dynamics Research Group, School of Earth and Planetary Sciences, Curtin University, Bentley, Perth, GPO Box U1987, Australia and JOHNSON, Tim E., School of Earth and Planetary Sciences, Curtin University, Perth, Western Australia 6845, Australia
20-10
11:40 AM
TIMING OF MIDDLE PROTEROZOIC MINERALIZATION AND MAGMATISM IN THE HELENA EMBAYMENT OF THE BELT BASIN
ZIEG, Jerry1, BOULEY, Logan1, DIETRICH, Joel1, NACEY, Kyle1 and MAHONEY, J. Brian2, (1)Tintina Montana Inc., 17 E Main St., White Sulphur Springs, MT 59645, (2)Geology, 422 GARFIELD AVE, Eau Claire, WI 54701
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