James Sears
University of Montana, Missoula, MT
Activity
2024
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BELT-SIBERIA CONNECTION: MATCHING LIPS TIGHTEN PROTEROZOIC RODINIA RESTORATION AND MAY IMPLY A MULTIPOLAR GEOMAGNETIC FIELD
20 The Boring Billion was not so Boring! Mesoproterozoic Tectonics, Sedimentation, and Geochronology of Northwest Laurentia IThursday, 16 May 20248:00 AM - 12:00 PMCedar Ballroom
2022
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INVERTED NEOPROTEROZOIC GRABENS ON WESTERN NORTH AMERICAN AND SIBERIAN RIFT MARGINS: CONJUGATE PIERCING POINTS IN RODINIA?
18 Neo-Insights into the Neoproterozoic of Western North AmericaWednesday, 16 March 20228:00 AM - 12:00 PMCBC-A 112
2020
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DETRITAL ZIRCON FROM A LARGE CENOZOIC DELTA AT THE MOUTH OF HUDSON STRAIT: EVIDENCE FOR CANADA’S AMAZON-SCALE, “PALEO-BELL RIVER” BASIN
T230 From Hudson Bay to the Coastal Plain: Comparisons of Pre-LGM (Last Glacial Maximum) Quaternary Records in Glaciated and Unglaciated North America IIThursday, 29 October 20205:30 PM - 8:00 PMMeeting Rooms
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EVOLUTION OF PROTEROZOIC EARTH'S MAGNETIC FIELD IN THE CONTEXT OF PLATE TECTONICS
T73 Assembling Laurentia: Turning Points in Paleoproterozoic Tectonic Evolution ITuesday, 27 October 20201:30 PM - 5:30 PMMeeting Rooms
2019
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FIELD RELATIONSHIPS THROUGHOUT THE SOUTHERN DEATH VALLEY REGION OF CA REQUIRE THE HORSE THIEF SPRING FORMATION TO BE OLDER THAN THE 1.1 GA CRYSTAL SPRING DIABASE
41 D26. Recent Advances in Precambrian Geology (Posters)Sunday, 22 September 20199:00 AM - 5:30 PMHall AB, North Building
2018
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SIGNIFICANT QUADRUPOLE MOMENT FOR PRECAMBRIAN GEODYNAMO? IMPLICATIONS FROM WEST LAURENTIA-SIBERIA CONTINENTAL RECONSTRUCTION AND NEPTUNIAN HOMOLOGUE
69 Recent Advances in Planetary Geoscience (Posters)Thursday, 17 May 20188:30 AM - 4:30 PMOutdoor Tents
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GREAT BASIN PIERCING POINTS CONSTRAIN THE PROTEROZOIC LAURENTIA-SIBERIA CONNECTION
48 Recent Advances in Basin-and-Range and Proterozoic Geology of the Western U.S. III: A Session Honoring Ernie DuebendorferWednesday, 16 May 20183:30 PM - 5:15 PMKaibab Room
2017
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NEOPROTEROZOIC-EARLY CAMBRIAN PULL-APART BASINS ALONG CORDILLERAN TRANSFORM MARGIN, NORTH AMERICA, AND IMPLICATIONS FOR SIBERIAN CONJUGATE CONNECTION
T344 New Perspectives on Cordilleran Tectonics, Paleogeography, and MetallogenyWednesday, 25 October 20171:30 PM - 5:30 PMTahoma 5
2016
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SIBERIA-WEST LAURENTIA PALEOCONTINENTAL CONNECTION: CONSTRAINTS FROM MESOPROTEROZOIC CRATONIC BASINS
T112 Structure and Tectonics of Mesoproterozoic BasinsMonday, 26 September 20168:00 AM - 12:00 PMRoom 203
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GRENVILLE FORELAND BASIN LINKS SIBERIA-WEST LAURENTIA PALEOCONTINENTAL CONNECTION
T112 Structure and Tectonics of Mesoproterozoic BasinsMonday, 26 September 20168:00 AM - 12:00 PMRoom 203
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POSSIBLE WINDERMERE RIFTS IN THE MESOPROTEROZOIC BELT BASIN OF THE MONTANA ROCKIES
T112 Structure and Tectonics of Mesoproterozoic BasinsMonday, 26 September 20168:00 AM - 12:00 PMRoom 203
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NORTH-FLOWING PALEO-RIVER ON THE MONIDA PASS SEGMENT OF THE MONTANA-IDAHO CONTINENTAL DIVIDE: DOWN-STREAM REACH OF THE EARLY COLORADO RIVER SYSTEM DESTROYED BY BASIN-RANGE FAULTING?
T5 CRevolution 2.5: Origin and Evolution of the Colorado River System and Cenozoic Landscape Evolution of the Colorado Plateau-Rocky Mountain Region ISunday, 25 September 20168:00 AM - 12:00 PMRoom 406
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EARLY CAMBRIAN TRILOBITES CONFIRM SIBERIA-WEST LAURENTIA PALEOCONTINENTAL CONNECTION
32 Structural Geology and TectonicsThursday, 19 May 20161:00 PM - 3:00 PMCrest Room
2015
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PLIOCENE TRUNCATION OF A MAJOR NORTH-FLOWING RIVER SYSTEM BY THE YELLOWSTONE HOTSPOT TRACK NEAR MONIDA PASS, IDAHO/MONTANA
8 Yellowstone/Teton/Snake River Plain Volcano–Tectonic System: Honoring 55 Years of Distinguished Research and the Legacy of Bob SmithFriday, 22 May 20158:00 AM - 12:00 PMWyoming Theater
2014
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WHEN MOUNTAINS CROSS RIVERS: PLIOCENE TRUNCATION OF THE ANCESTRAL UPPER MISSOURI IN THE WAKE OF THE YELLOWSTONE HOTSPOT, MONTANA/IDAHO CONTINENTAL DIVIDE
29 Session Honoring Kenneth L. Pierce and the Breadth of His Research in Greater YellowstoneWednesday, 21 May 20148:00 AM - 12:00 PMProcrastinator Theater
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AMAZON-SCALE, MID-CENOZOIC “BELL RIVER” DRAINAGE BASIN OF NORTH AMERICA: IMPLICATIONS FOR TECTONICS OF THE WESTERN INTERIOR
10 Paleogene Topography, Basin Evolution, and Sediment Dispersal in the Northern Rocky Mountain RegionMonday, 19 May 20141:00 PM - 5:00 PMSUB 233/235
2013
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NORTH-FLOWING OUTLET FOR 23-17 MA GRAND CANYON? EVIDENCE FROM NEVADA, IDAHO, MONTANA, AND CANADA
273 Special Session: CRevolution 2: Cenozoic Landscape Evolution of the Colorado Plateau–Rocky Mountain Region and the Carving of Grand Canyon IVTuesday, 29 October 20131:00 PM - 5:00 PMMile High Ballroom 4CD
2012
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MAKING NUNA AND BREAKING RODINIA: IMPLICATIONS OF SIBERIA-LAURENTIA CONNECTIONS FOR SUPERCONTINENT CYCLES
T153 Detrital Zircon Provenance of Neoproterozoic to Lower Paleozoic Strata of Northern and Western LaurentiaTuesday, 6 November 20128:00 AM - 12:00 PM203B
2011
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‘SAGLEK SUPER-RIVER' AND THE EARLY MIOCENE (22-17 MA) BEGINNING OF THE GRAND CANYON
22 Interactions of Climate, Tectonics, and Sedimentation in Cenozoic Basins of the Basin and RangeThursday, 19 May 20111:30 PM - 5:00 PMCottonwood
2010
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POSSIBLE MIDDLE MIOCENE STRATH TERRACES IN THE GRAND CANYON LEAD TO THE VIRGIN MOUNTAINS: DID THE COLORADO RIVER FLOW INTO THE GREAT BASIN FROM 17 TO 6 MA?
T239 Geology in the National Parks: Research, Mapping, Education, and Outreach IWednesday, 3 November 20108:00 AM - 12:00 PMRoom 405
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TECTONITE FABRIC IN THE CONTACT AUREOLE OF A SYNKINEMATIC STOCK, LEWIS AND CLARK LINE TRANSPRESSIONAL SHEAR ZONE, GARNET MINING DISTRICT, MONTANA
T289 Applications of Structural Geology in Meeting the Natural Resource and Energy Needs of Society: Challenges and Innovations for the Twenty-First CenturyWednesday, 3 November 20101:30 PM - 5:30 PMHall E
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SHRIMP AND LAICPMS DETRITAL ZIRCON GEOCHRONOLOGY OF MESOPROTEROZOIC TO EARLY CAMBRIAN SAMPLES FROM SE SIBERIA AND SW LAURENTIA; IMPLICATIONS FOR RODINIA RECONSTRUCTION
T217 Proterozoic Crustal Evolution of Southern Laurentia: Tectonic Settings, Petrology, Geochemistry, and Geochronology IITuesday, 2 November 20101:30 PM - 5:30 PMRoom 302
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TRACKING THE UPLIFT OF YELLOWSTONE'S THERMAL DOME IN SW MONTANA
28 Structural Geology, Tectonics, and Petrology (Posters)Friday, 23 April 20108:00 AM - 4:00 PMRushmore H
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TESTING THE BULGE: USE OF NEOGENE BEDROCK PALEO-VALLEYS TO TEST MODELS OF THE YELLOWSTONE THERMAL DOME AND RELATED DEFORMATION
28 Structural Geology, Tectonics, and Petrology (Posters)Friday, 23 April 20108:00 AM - 4:00 PMRushmore H
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GOLD-BEARING VEINS IN THE GARNET MINING DISTRICT, GRANITE COUNTY, MONTANA: SYN-TECTONIC MINERALIZATION ALONG THE LEWIS AND CLARK LINE SHEAR ZONE
1 Economic GeologyWednesday, 21 April 201010:20 AM - 12:00 PMRushmore G
2009
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BREAKING UP IS HARD TO DO: EVOLUTION OF THE NORTH AMERICAN CORDILLERAN MARGIN IN THE CONTEXT OF THE SIBERIAN CONNECTION
T61 Neoproterozoic through Cretaceous Evolution of the North American Cordilleran Margin: Contrasting Tectonics, Paleogeography, and PaleoenvironmentsSunday, 18 October 20091:30 PM - 5:30 PMB110/111/112
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SEDIMENTARY RECORD AND DETRITAL ZIRCON PROVENANCE OF THE EOCENE-OLIGOCENE RENOVA FORMATION, BITTERROOT VALLEY, WESTERN MONTANA
18 Undergraduate Research (Posters)Wednesday, 13 May 20098:00 AM - 5:00 PM
2008
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DETRITAL ZIRCON LINKAGES BETWEEN SE SIBERIA AND SW NORTH AMERICA
15 Proterozoic Tectonics of the Southwestern U.S.: Origin and History of the Lithosphere: From Continental Assembly, to Breakup, to Influence of Old Structures on Younger Tectonic Events.Thursday, 20 March 20088:00 AM - 11:40 AM
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IDAHO SOURCES FOR DETRITAL ZIRCONS IN LATE MIOCENE SIXMILE CREEK FORMATION, SW MONTANA
20 Detrital Zircon Studies in Western North AmericaThursday, 20 March 20081:30 PM - 5:15 PM
2007
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SEQUENTIAL DOMING AND FAULTING ALONG THE MARGIN OF THE YELLOWSTONE HOT SPOT TRACK IN SW MONTANA: PARAMETERS TO TEST THE PLUME HYPOTHESIS FROM NEOGENE SIXMILE CREEK FORMATION
T107 The Track of the Yellowstone Hot Spot I: What Do Neotectonics, Climate Indicators, Volcanism, and Petrogenesis Reveal about Subsurface Processes?Monday, 29 October 20071:30 PM - 5:30 PM
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INSITU MICRO-BADDELEYITE U-PB DATING METHOD: ‘AN AGE FROM ANY DIKE'
34 Pulse of the Earth: Geochronology and Paleomagnetism of Large Igneous Provinces—The Key to Reconstructing Precambrian SupercontinentsSunday, 28 October 20071:30 PM - 5:30 PM
2006
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ESTIMATION OF FINITE STRAIN IN CLASTIC SEDIMENTARY ROCKS ASSUMING STRAIN PARTITIONING BETWEEN CLASTS AND MATRIX
T199 Deformation in Sedimentary Rocks I: A Tribute to Richard H. Groshong, Jr.Wednesday, 25 October 20068:00 AM - 12:00 PM
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BALANCING THE MONTANA ROCKY MOUNTAIN TRIANGLE ZONE: WHAT TO DO ABOUT LAYER-PARALLEL STRAIN?
T49 Unraveling Tectonics: The Power Behind Balanced Cross Sections and Kinematic ReconstructionsSunday, 22 October 20061:30 PM - 5:30 PM
2005
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LITHOSTRATIGRAPHIC MATCHES OF MESO- AND NEOPROTEROZOIC STRATA BETWEEN SE SIBERIA AND SW LAURENTIA
T16 Refining the Global Neoproterozoic Geologic RecordSunday, 16 October 20058:00 AM - 12:00 PM
Date Unknown
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SHARED SOURCES FOR LAURENTIAN AND SIBERIAN DETRITAL ZIRCON ASSEMBLAGES: NEW RESULTS FROM SHRIMP AND LAICPMS GEOCHRONOLOGY OF PROTEROZOIC CLASTIC ROCKS
T207 Using Detrital Zircon Geochronology to Answer Geologic Questions We Formerly Could Not Ask (Posters)