W. Premo
U.S. Geological Survey, Denver, CO
Activity
2024
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LATE CRETACEOUS TO PALEOGENE GRANITIC MAGMATISM, LAMOILLE CANYON AREA, RUBY MOUNTAINS METAMORPHIC CORE COMPLEX, NE NEVADA
36 Implications of Lithosphere-Crust interactions within the Northern CordilleraFriday, 17 May 20248:00 AM - 12:00 PMCedar Ballroom
2022
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PALEOPROTEROZOIC CRUSTAL EVOLUTION OF THE COLORADO FRONT RANGE: COMBINED U-PB, HF AND OXYGEN ISOTOPE EVIDENCE FROM MAGMATIC ZIRCON
T31 Evaluation of Proterozoic Tectonic Styles in North America and Their Influence on Phanerozoic Structures and Mineralization (Posters)Sunday, 9 October 20229:00 AM - 1:00 PMExhibit Hall F
2019
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STRONTIUM ISOTOPES IN CARBONATE FROM THE EAGLE FORD GROUP AT THE CENOMANIAN-TURONIAN BOUNDARY IN NORTH-CENTRAL TEXAS: A POSSIBLE PROXY FOR SEAWATER COMPOSITION
T169 Chemostratigraphy: Physical and Temporal ApplicationsTuesday, 24 September 20198:00 AM - 12:00 PMRoom 224B, North Building
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RAPID SR ISOTOPE EXCURSIONS IN THE MARINE RECORD AS A TOOL FOR UNDERSTANDING GLOBAL SEAWATER EVOLUTION
T169 Chemostratigraphy: Physical and Temporal ApplicationsTuesday, 24 September 20198:00 AM - 12:00 PMRoom 224B, North Building
2018
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NEW U-PB ZIRCON ANALYSES RECORD PALEOCENE AND MID EOCENE-EARLY OLIGOCENE MELTING OF LATE CRETACEOUS, JURASSIC, AND PROTEROZOIC CRUST IN LOWER PLATE OF THE MAGDALENA-MADERA METAMORPHIC CORE COMPLEX, SONORA, MEXICO
24 Recent Advances in Understanding the Geology of Northwestern Mexico ITuesday, 15 May 20181:30 PM - 3:15 PMHumphreys/Mt. Elden Room
2017
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TRANSFER OF SULFUR IN THE MIOCENE COMSTOCK LODE AU-AG SYSTEM (NEVADA, USA) FROM MANTLE TO METEORIC WATER
T237 System-Scale Zonation of Ore Systems: Insights into 3D Architecture from Lateral and Deep Exposures Due to Mining and Structural DeformationTuesday, 24 October 20171:30 PM - 5:30 PMYakima 1
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PALEOPROTEROZOIC CRUSTAL GROWTH IN THE CENTRAL US: HF AND OXYGEN ISOTOPE EVIDENCE FROM MAGMATIC ZIRCON IN THE YAVAPAI PROVINCE OF NORTH-CENTRAL COLORADO
T19 Origin and Evolution of the Continental Crust: A Celebration of the Career of Paul MuellerSunday, 22 October 20178:00 AM - 12:00 PMSkagit 2
2016
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PALEOTECTONIC AND PALEOGEOGRAPHIC SETTING OF PALEOZOIC AND MESOZOIC ROCKS AT RANCHO SAN MARCOS, EAST-CENTRAL SONORA, MÉXICO
347 Tectonics/Tectonophysics (Posters)Wednesday, 28 September 20169:00 AM - 6:30 PMExhibit Hall E/F
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BRINE EXPULSIONS TO PALEOZOIC BASINS: TRIGGER OF CATASTROPHIC GLOBAL CHANGE
T288 The Early Paleozoic World: Radiations, Extinctions, and Paleoenvironmental Change IIWednesday, 28 September 20168:00 AM - 12:00 PMMile High Ballroom 3C
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SEARCHING FOR THE AERIAL EXTENT OF THE MOUNTAIN PASS CARBONATITE EVENT: EVIDENCE FROM U-PB ZIRCON GEOCHRONOLOGY OF PROTEROZOIC ROCKS IN SOUTHWESTERN UNITED STATES
167 Precambrian Geology (Posters)Monday, 26 September 20169:00 AM - 6:30 PMExhibit Hall E/F
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ARE SOME PROTEROZOIC GARNET–BEARING QUARTZITES IN COLORADO REALLY METARHYOLITES? EVIDENCE FROM PETROGRAPHY, GEOCHEMISTRY, AND GEOCHRONOLOGY
167 Precambrian Geology (Posters)Monday, 26 September 20169:00 AM - 6:30 PMExhibit Hall E/F
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INSIGHT INTO SMALL-VOLUME VOLCANIC FIELDS IN CENTRAL RIO GRANDE RIFT—ALBUQUERQUE VOLCANOES, NEW MEXICO
T173 Cenozoic Evolution of the Southern Rocky Mountains and Northern Rio Grande Rift: Exploring Linkages between Geologic History, Processes, and Landscape Change (Posters)Monday, 26 September 20169:00 AM - 6:30 PMExhibit Hall E/F
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SULFIDE SATURATION IN MAGMAS ASSOCIATED WITH PRECIOUS METAL DEPOSITION AND QUARTZ-ALUNITE ALTERATION AT GOLDFIELD AND OTHER DISTRICTS IN THE ANCESTRAL CASCADES MAGMATIC ARC, CA-NV
T32 Magmatic-Hydrothermal Ore Deposits: Metal Transport from Source to SinkSunday, 25 September 20161:30 PM - 5:30 PMRoom 301
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NEW SHRIMP-RG U-PB ZIRCON AND SR ANALYSES FROM JURASSIC AND LATE CRETACEOUS PLUTONIC SHEETS IN THE EAST-CENTRAL SAN GABRIEL MOUNTAINS, CALIFORNIA
8 Linking Mesozoic Arcs,Tectonics and Mineral Deposits (Posters)Monday, 4 April 20168:30 AM - 5:30 PMBallroom C
2014
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LINKAGES BETWEEN CRUSTAL STRATIGRAPHY, MAGMATIC-HYDROTHERMAL EVOLUTION, AND SOURCES OF COMPONENTS OF GOLD-SILVER DEPOSITS IN THE ADJOINING GOLDFIELD AND TONOPAH DISTRICTS, NEVADA
T96 Innovative Across-Scale Integration in Economic Geology: In the Giant Footprint of Rob KerrichMonday, 20 October 20148:00 AM - 12:00 PM204
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NEW U-PB ZIRCON GEOCHRONOLOGY OF PRECAMBRIAN PARAGNEISSES AND LATE PHANEROZOIC ORTHOGNEISSES OF THE ANGEL LAKE – LIZZIES BASIN REGION OF THE EAST HUMBOLDT RANGE, NORTHEASTERN NEVADA: A COMPARISON WITH THE THERMAL CHRONOLOGY AT LAMOILLE CANYON IN THE ADJACENT RUBY MOUNTAINS
19 Precambrian I: Archean and Paleoproterozoic Crustal Evolution of Western Laurentia (Posters)Tuesday, 20 May 20148:00 AM - 5:00 PMBallroom B, C, D
2013
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CLAST LITHOLOGY, POPULATION, PROVENANCE, AND U-PB GEOCHRONOLOGY: WHAT CAN THE LATE EOCENE CASTLE ROCK CONGLOMERATE TELL US ABOUT THE HISTORY OF THE COLORADO PIEDMONT AND FRONT RANGE?
195 Recent Advances in Stratigraphic ResearchTuesday, 29 October 20138:00 AM - 12:00 PMMile High Ballroom 4EF
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AGES AND PB-SR-ND ISOTOPES OF SILICATE ROCKS AT MOUNTAIN PASS, SOUTHERN CALIFORNIA
37 Precambrian Geology (Posters)Sunday, 27 October 20139:00 AM - 6:30 PMHall D
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NEW SHRIMP-RG U-PB ZIRCON GEOCHRONOLOGY OF PALEOPROTEROZOIC BASEMENT ROCKS FROM WESTERN COLORADO: A REFINEMENT OF THE TIMING FOR PROTEROZOIC CRUSTAL GROWTH IN THE COLORADO PROVINCE
14 Precambrian Petrology and Tectonics (Posters)Thursday, 16 May 20138:00 AM - 5:00 PMNorth/South Ballroom
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AGE AND ORIGIN OF PYROXENITES FROM THE IRON HILL CARBONATITE COMPLEX, GUNNISON, COLORADO: EVIDENCE FROM PB-SR-ND ISOTOPES
14 Precambrian Petrology and Tectonics (Posters)Thursday, 16 May 20138:00 AM - 5:00 PMNorth/South Ballroom
2012
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A REFINEMENT OF THE TIMING FOR PROTEROZOIC CRUSTAL GROWTH IN WESTERNMOST COLORADO FROM SHRIMP-RG U-PB ZIRCON GEOCHRONOLOGY
90 Precambrian Geology (Posters)Monday, 5 November 20129:00 AM - 6:00 PMHall B
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SHRIMP-RG U-PB GEOCHRONOLOGY AND TRACE ELEMENT GEOCHEMISTRY OF ZIRCON FROM PROTEROZOIC GRANITIC PLUTONS IN THE SAWATCH RANGE, COLORADO, USA
90 Precambrian Geology (Posters)Monday, 5 November 20129:00 AM - 6:00 PMHall B
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PRE-RIFT EXTENSION DEFINED BY NEW MAPPING AND GEOCHRONOLOGY IN THE CIMARRON AND TAOS RANGES OF NORTHERN NEW MEXICO
9 Multidisciplinary Studies of the Rio Grande Rift: Basins, Volcanism, Geophysics, and Hydrogeology (Posters)Wednesday, 9 May 20128:00 AM - 5:30 PMAlvarado D&E
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DEPOSITIONAL SETTING AND SOURCE OF DETRITAL ZIRCONS IN THE PERMIAN MINA MÉXICO FOREDEEP IN SONORA, MEXICO
7 Stratigraphy/Sedimentology (Posters)Thursday, 29 March 20128:30 AM - 6:30 PMJuarez 1 and 2
2011
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THE ANGEL LAKE GNEISS COMPLEX OF NORTHEASTERN NEVADA AND THE SOUTHWESTERN LIMITS OF ARCHEAN TO PALEOPROTEROZOIC BASEMENT IN NORTH AMERICA
T175 The Archean of North America: The Core of a Continent (Posters)Tuesday, 11 October 20119:00 AM - 6:00 PMHall C
2010
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SOME OF THE OLDEST ROCKS IN COLORADO ARE RIFT-RELATED? RESULTS FROM SHRIMP U-PB ZIRCON GEOCHRONOLOGY AND MAJOR AND TRACE-ELEMENT GEOCHEMISTRY
T281 Advances in the Geology, Geochemistry, Geochronology, Isotope Geochemistry, Geophysics, Structural Geology, and Tectonics of Central ColoradoWednesday, 3 November 20101:30 PM - 5:30 PMRoom 205
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CONTRASTING PLUTONIC STYLES IN THE PALEOPROTEROZOIC OF COLORADO BETWEEN CA. 1.725 TO 1.690 GA: RESULTS FROM SHRIMP U-PB ZIRCON GEOCHRONOLOGYAND MAJOR AND TRACE-ELEMENT GEOCHEMISTRY
T281 Advances in the Geology, Geochemistry, Geochronology, Isotope Geochemistry, Geophysics, Structural Geology, and Tectonics of Central ColoradoWednesday, 3 November 20101:30 PM - 5:30 PMRoom 205
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THE EARLY PROTEROZOIC POUDRE BASIN, AN IMPORTANT CONSTRAINT OF 1.77—1.73-GA TECTONIC EVENTS IN NORTHERN COLORADO
T281 Advances in the Geology, Geochemistry, Geochronology, Isotope Geochemistry, Geophysics, Structural Geology, and Tectonics of Central ColoradoWednesday, 3 November 20101:30 PM - 5:30 PMRoom 205
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FACTORS CONTROLLING GENERATION AND DISTRIBUTION OF 1400-MA PLUTONS IN COLORADO
T281 Advances in the Geology, Geochemistry, Geochronology, Isotope Geochemistry, Geophysics, Structural Geology, and Tectonics of Central ColoradoWednesday, 3 November 20101:30 PM - 5:30 PMRoom 205
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TERTIARY MAGMATISM IN THE SILVER CLIFF, ROSITA, AND DEER PEAK VOLCANIC CENTERS, WET MOUNTAINS: COLORADO-GEOCHEMISTRY, GEOCHRONOLOGY, AND STRUCTURAL EVOLUTION
T281 Advances in the Geology, Geochemistry, Geochronology, Isotope Geochemistry, Geophysics, Structural Geology, and Tectonics of Central ColoradoWednesday, 3 November 20101:30 PM - 5:30 PMRoom 205
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PROVENANCE OF DETRITAL ZIRCONS IN ORDOVICIAN IAPETUS OCEAN-BASIN QUARTZITES IN SONORA, MEXICO
174 Sediments, Clastic (Posters)Tuesday, 2 November 20108:00 AM - 6:00 PMHall D
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DEPOSITIONAL SETTING AND SOURCE OF DETRITAL ZIRCONS IN THE PERMIAN MINA MÉXICO FOREDEEP IN SONORA, MEXICO
105 Tectonics (Posters)Monday, 1 November 20108:00 AM - 6:00 PMHall D
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AGE AND DEPOSITIONAL SETTING OF DEEP-MARINE ORDOVICIAN RÍO FUERTE AND SAN JOSÉ DE GRACIA FORMATIONS IN NORTHERN SINALOA, MEXICO: REMNANTS OF THE EARLY PALEOZOIC IAPETUS OCEAN
105 Tectonics (Posters)Monday, 1 November 20108:00 AM - 6:00 PMHall D
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CENTRAL COLORADO GEODATABASE, AN EXAMPLE OF REGIONAL GEOSCIENCE INTEGRATION
T108 Geologic Maps, Digital Geologic Maps, and Derivatives from Geologic and Geophysical Maps (Posters)Monday, 1 November 20108:00 AM - 6:00 PMHall D
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IS THE CHEYENNE BELT THE MAZATZAL DEFORMATION FRONT?: EVIDENCE FOR REACTIVATION OF THE CHEYENNE BELT AT ~1.65–1.63 GA
24 Structural and Tectonic Evolution of the Proterozoic Trans-Hudson–Archean Wyoming Province BoundaryFriday, 23 April 20108:00 AM - 10:00 AMAlpine Room
2009
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THE ANGEL LAKE GNEISS COMPLEX REVISITED: PRECAMBRIAN GEOLOGY OF THE NORTHERN EAST HUMBOLDT RANGE, ELKO COUNTY, NEVADA
98 Precambrian Geology (Posters)Monday, 19 October 20099:00 AM - 6:00 PMHall A
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GEOLOGIC FRAMEWORK OF THE NORTHERN PENINSULAR RANGES BATHOLITH, SOUTHERN CALIFORNIA
T40 The Mesozoic and Cenozoic Tectonic Evolution of Northwestern Mexico and the Southwestern United States (Posters)Sunday, 18 October 20099:00 AM - 6:00 PMHall A
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INCREMENTAL PLUTONIC ASSEMBLY OVER TENS OF MILLIONS OF YEARS? U-PB GEOCHRONOLOGY AND GHOST STRATIGRAPHY IN PEGMATITIC GRANITE, RUBY MOUNTAINS, NEVADA
T16 Pluton Assembly: Duration, Mechanisms, and Structural ControlsSunday, 18 October 20098:00 AM - 12:00 PMA105
2008
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A Refined Interpretation of the Medicine Bow Orogeny, Southeastern Wyoming: Accretion, Delamination, and Collision
T341 Evolution of the Lithosphere and Upper Mantle in the Western U.S.Thursday, 9 October 20088:00 AM - 12:00 PM
2007
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SHRIMP U-PB ISOTOPIC SYSTEMATICS OF ZIRCON FROM THE ANGEL LAKE ORTHOGNEISS, EAST HUMBOLDT RANGES, NEVADA: IS THIS REALLY ARCHEAN CRUST?
T146 Geochemistry of Magmatic and Metamorphic Processes: In Honor of the Contributions of Joseph L. Wooden (Posters)Tuesday, 30 October 20078:00 AM - 12:00 PM
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MAPPING THE COLORADO FRONT RANGE: ASSESSMENT OF GEOLOGIC RESOURCES AND ENVIRONMENTAL ISSUES
T58 Geologic Mapping: Innovations and Interoperability (Posters)Sunday, 28 October 20076:00 PM - 8:00 PM
2006
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CONODONT APATITE: A GEOCHEMICAL AND ISOTOPIC TIME CAPSULE OF THE PALEOCEAN?
T69 An Appetite for Apatite: Conodont-Based Geological Investigations in the 21st CenturyMonday, 23 October 20068:00 AM - 12:00 PM
2005
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GEOCHEMICAL AND ND ISOTOPIC EVIDENCE FOR AN EXTENDING CONTINENTAL-MARGIN ARC/BACK ARC SETTING FOR PERALKALINE RHYOLITE-HOSTED MASSIVE SULFIDE DEPOSITS OF THE BONNIFIELD DISTRICT, EAST-CENTRAL ALASKA
T39 Advances in the Understanding of Tectonic Settings and Structural Control of Ore DepositsSunday, 16 October 20051:30 PM - 5:30 PM
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U/PB GEOCHRONOLOGY AND STRUCTURAL ANALYSIS OF PROTEROZOIC ROCKS IN THE SIERRA NACIMIENTO REGION, NORTHWESTERN NEW MEXICO
16 Precambrian Geology of the Rocky Mountains and High Plains RegionWednesday, 25 May 20058:00 AM - 12:00 PM
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PROTEROZOIC BASEMENT IN THE PINACATE REGION OF NW SONORA, MEXICO: POSSIBLE CONNECTIONS TO NORTHEASTERN AUSTRALIA?
16 Tectonics of the U.S. Cordillera, SWEAT Connection and Beyond I: A Session in Honor of Eldridge MooresFriday, 29 April 20051:15 PM - 5:20 PM
2004
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GEOCHRONOLOGICAL EVIDENCE FOR MESO- AND NEOPROTEROZOIC MAFIC MAGMATISM ALONG THE WESTERN MARGIN OF THE WYOMING CRATON
T217 Pre-EarthScope Synthesis of the Rocky Mountains IV (Posters)Wednesday, 10 November 20048:00 AM - 12:00 PM
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GEOLOGIC MAPPING FOR LAND-USE PLANNING--THE U.S. GEOLOGICAL SURVEY'S CENTRAL COLORADO ASSESSMENT PROJECT
T249 Geological Mapping: Providing for Successful Water and Land Resource Planning (Posters)Wednesday, 10 November 20041:30 PM - 5:30 PM
2003
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GEOCHEMISTRY AND SHRIMP U-PB ZIRCON GEOCHRONOLOGY OF ANORTHOSITIC ROCKS AT SIERRA EL TECOLOTE IN THE CABORCA BLOCK, NORTHWESTERN SONORA, MEXICO
40 Proterozoic Basement in Sonora and Adjacent Areas: A Piece of SW Laurentia IIThursday, 3 April 20032:15 PM - 5:30 PM
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THE AIBO-TYPE (~1.1 GA) GRANITIC MAGMATISM IN NW SONORA, MEXICO: FAILED CONTINENTAL RIFTING OF RODINIA?
40 Proterozoic Basement in Sonora and Adjacent Areas: A Piece of SW Laurentia IIThursday, 3 April 20032:15 PM - 5:30 PM
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THE EL CRESTÓN GRANITE: A NEW CONFIRMED PALEOPROTEROZOIC LOCALITY IN THE OPODEPE AREA, NORTH-CENTRAL SONORA, MEXICO
40 Proterozoic Basement in Sonora and Adjacent Areas: A Piece of SW Laurentia IIThursday, 3 April 20032:15 PM - 5:30 PM
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U-PB ZIRCON GEOCHRONOLOGY OF PALEOPROTEROZOIC BASEMENT IN NORTHWESTERN SONORA, MEXICO: EVIDENCE FOR AFFINITY TO SW US PROVINCES
29 Proterozoic Basement in Sonora and Adjacent Areas: A Piece of SW Laurentia IWednesday, 2 April 20032:15 PM - 5:30 PM
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THE CABORCA BLOCK: AN INHOMOGENEOUS PIECE OF PALEOPROTEROZOIC CRUST IN SONORA
29 Proterozoic Basement in Sonora and Adjacent Areas: A Piece of SW Laurentia IWednesday, 2 April 20032:15 PM - 5:30 PM
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GNEISSES OF THE NW SONORA-SW ARIZONA BORDER REGION: TWO DISTINCT PALEOPROTEROZOIC COMPLEXES AT THE SOUTHWEST EDGE OF LAURENTIA
29 Proterozoic Basement in Sonora and Adjacent Areas: A Piece of SW Laurentia IWednesday, 2 April 20032:15 PM - 5:30 PM
2002
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STRATABOUND SRHDG RESOURCE IN MIDDLE PROTEROZOIC ROCKS OF THE BIG BELT MOUNTAINS NEAR YORK, MONTANA
T63 Diverse Origins of Sedimentary Rock-Hosted Disseminated Gold Deposits: A Global PerspectiveMonday, 28 October 20028:00 AM - 12:00 PM
2001
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A TESTABLE HYPOTHESIS FOR THE DISTRIBUTION OF PALEOPROTEROZOIC PROVINCES ALONG THE SW MARGIN OF LAURENTIA: INSIGHTS FROM NW SONORA, MEXICO
3 Paleoproterozoic Tectonics of the Southwestern United StatesMonday, 30 April 20018:00 AM - 12:00 PM
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LARAMIDE JUXTAPOSITION OF THE CABORCA AND "NORTH AMERICA" PALEOPROTEROZOIC BASEMENT BLOCKS IN THE QUITOVAC REGION, NW SONORA, MEXICO
33 New Insights in TectonicsTuesday, 10 April 20011:50 PM - 4:30 PM
Date Unknown
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SHRIMP U-PB AGES OF PROVENANCE FROM DETRITAL ZIRCON POPULATIONS OF INTRA-BATHOLITHIC METASEDIMENTARY ROCKS, N. PENINSULAR RANGES BATHOLITH, SOUTHERN CALIFORNIA: IMPLICATIONS FOR THEIR TECTONIC SETTING
57 New Geologic Research Along the Plate's Edge: The USGS Southern California Areal Mapping Project (SCAMP) (Posters)
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NEW SHRIMP U-PB ZIRCON AGES AND ND ISOTOPIC SIGNATURES FOR PLUTONISM IN THE NORTHERN RUBY - EAST HUMBOLDT RANGES OF NE NEVADA: IMPLICATIONS FOR THE TIMING OF TERTIARY CORE COMPLEX FORMATION
157 Geochemistry (Posters)
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SHRIMP U-PB ZIRCON AGES AND ND SIGNATURES FROM CENTRAL COLORADO FRONT RANGE MIGMATITES AND RELATED IGNEOUS ROCKS: IMPLICATIONS FOR THE TIMING AND ORIGIN OF CRUSTAL GROWTH
15 Igneous Petrology, Volcanology, and Precambrian Geology (Posters)
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SHRIMP U-PB ZIRCON AGES FOR PALEOPROTEROZOIC BASEMENT ROCKS FROM THE NORTHERN AND CENTRAL COLORADO FRONT RANGE: A REFINEMENT OF THE TIMING OF CRUSTAL GROWTH IN THE COLORADO PROVINCE
82 Precambrian Geology (Posters)
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TIMING AND ORIGIN OF PROTEROZOIC BASEMENT ROCKS IN THE SIERRA NACIMIENTO REGION, NW NEW MEXICO: EVIDENCE FROM SHRIMP U-PB ZIRCON GEOCHRONOLOGY AND ND ISOTOPIC TRACER STUDIES
17 Precambrian Geology of the Rocky Mountains and High Plains Region (Posters)
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PLUTONIC AND METAMORPHIC ROCKS, NORTHERN PENINSULAR RANGES BATHOLITH, SOUTHERN CA--STRUCTURAL AND UPLIFT HISTORY BASED ON NEW GEOBAROMETRIC AND ISOTOPIC DATA
57 New Geologic Research Along the Plate's Edge: The USGS Southern California Areal Mapping Project (SCAMP) (Posters)
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THE GUNBARREL MAFIC MAGMATIC EVENT: A KEY 780 MA TIME MARKER FOR RODINIA PLATE RECONSTRUCTIONS
222 Precambrian Geology (Posters)