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Activity

2025

• ALTERATION MINERALOGY, AIRBORNE GEOPHYSICAL SIGNALS, AND CRITICAL MINERALS POTENTIAL OF THE RADERSBURG AND GIANT HILL 7.5’ QUADRANGLES, SOUTHWESTERN MONTANA
  41 Critical Minerals in the West: How to Lead a Once-in-a-Generation Crisis to the Best Possible Outcome
  Tuesday, 20 May 2025

  1:30 PM - 3:15 PM

  Cascade D
• LATERAL IOCG FORMATION IN THE PLUMAS COPPER BELT: INSIGHTS FROM COPPER ISOTOPES
  4 Critical and Metallic Resources of the American Cordillera
  Wednesday, 2 April 2025

  8:00 AM - 12:00 PM

  El Dorado

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2024

• METAL ENRICHMENT AND ZONING IN PORPHYRY COPPER DEPOSITS
  T227 Porphyry Copper Systems: Advances and Sources of Materials for the Energy Transition
  Wednesday, 25 September 2024

  8:00 AM - 12:00 PM

  213B
• RETHINKING THE EVOLUTION OF THE BOULDER BATHOLITH, WESTERN MONTANA
  T217 Magmatism and Accreted Terranes from the North American Cordillera to the Norwegian Caledonides II: a Session in Honor of the Scientific Contributions of Calvin G. Barnes
  Tuesday, 24 September 2024

  1:30 PM - 5:30 PM

  207B
• GEOCHEMICAL CHARACTERIZATION OF LACUSTRINE LITHOLOGY IN MCDERMITT CALDERA, OR/NV
  T208 Lithium Clays, Brines and Pegmatites in the Americas: Challenges of a Critical Metal for the Energy Transition
  Tuesday, 24 September 2024

  1:30 PM - 5:30 PM

  207C
• GEOLOGIC SIGNIFICANCE OF THE BASE OF THE LATE CRETACEOUS ELKHORN MOUNTAINS VOLCANICS IN THE RADERSBURG AND GIANT HILL 7.5’ QUADRANGLES, SOUTHWESTERN MONTANA
  39 Mapping the West (Posters)
  Friday, 17 May 2024

  9:00 AM - 1:30 PM

  Grand Ballroom
• ZIRCON AGE AND GEOCHEMISTRY OF GRANITES RELATED TO PORPHYRY AND POLYMETALLIC MINERAL DEPOSITS OF THE EASTERN ELKHORN MOUNTAINS AND BOULDER BATHOLITH, MONTANA
  28 Mineral Deposits of the Western United States II: A View from the States and Industry
  Thursday, 16 May 2024

  1:30 PM - 5:30 PM

  Birch Ballroom
• CRITICAL MINERALS PROSPECTIVITY, GEOCHEMISTRY, AND ALTERATION MINERALOGY OF MAGMATIC-HYDROTHERMAL MINERAL SYSTEMS IN THE RADERSBURG AND GIANT HILL 7.5’ QUADRANGLES, SOUTHWESTERN MONTANA
  28 Mineral Deposits of the Western United States II: A View from the States and Industry
  Thursday, 16 May 2024

  1:30 PM - 5:30 PM

  Birch Ballroom
• EARTH MRI GEOPHYSICAL DATA PROVIDE INSIGHTS INTO THE GEOLOGY AND MINERAL SYSTEMS OF THE RADERSBURG AND ELKHORN MINING DISTRICTS, MONTANA
  1 Recent Advances in Mineral Resources Research and Exploration
  Wednesday, 15 May 2024

  8:00 AM - 12:00 PM

  Birch Ballroom

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2022

• THE PETROLOGY OF WALL-ROCK ALTERATION ZONES IN PORPHYRY CU-MO-AU DEPOSITS: CONSTRAINTS ON THE TIMING, TEMPERATURE, AND PRESSURE CONDITIONS OF SULFIDE ORE FORMATION
  T152 Convergent Margin Magmatism and Ore Deposits to Honor the Range of Contributions by John H. Dilles
  Tuesday, 11 October 2022

  8:00 AM - 12:00 PM

  406
• EVOLVING METAL RATIOS IN THE LONG-LIVED SULPHURETS PORPHYRY AU-CU-MO DISTRICT: A LINK BETWEEN METAL ENDOWMENT IN PORPHYRY COPPER DEPOSITS AND DEEP CRUSTAL PROCESSES
  T152 Convergent Margin Magmatism and Ore Deposits to Honor the Range of Contributions by John H. Dilles
  Tuesday, 11 October 2022

  8:00 AM - 12:00 PM

  406
• A DISCUSSION ON THE TIMING AND TEMPERATURE OF COPPER AND MOLYBDENUM PRECIPITATION IN PORPHYRY DEPOSITS
  T152 Convergent Margin Magmatism and Ore Deposits to Honor the Range of Contributions by John H. Dilles
  Tuesday, 11 October 2022

  8:00 AM - 12:00 PM

  406
• MAGMAS, METALS AND DEEP ROOTS OF HYDROTHERMAL SYSTEMS: LESSONS FROM ACTIVE SYSTEMS OF NEW ZEALAND
  T152 Convergent Margin Magmatism and Ore Deposits to Honor the Range of Contributions by John H. Dilles
  Tuesday, 11 October 2022

  8:00 AM - 12:00 PM

  406
• TEMPORAL-SPATIAL ZONING OF HYDROTHERMAL ALTERATION MINERALOGY AND GEOCHEMISTRY OF QUARTZ-ALUNITE-HOSTED EPITHERMAL AU-CU-AG ORE DEPOSITS AT SUMMITVILLE, COLORADO
  T152 Convergent Margin Magmatism and Ore Deposits to Honor the Range of Contributions by John H. Dilles
  Tuesday, 11 October 2022

  8:00 AM - 12:00 PM

  406

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2021

• THE ENVIRONMENT OF ORE FORMATION IN LATE PHANEROZOIC IRON-OXIDE-RICH MINERAL DEPOSITS OF THE WESTERN USA, AND EVIDENCE FOR A NON-MAGMATIC HYDROTHERMAL ORIGIN
  T169 Magnetite Apatite (MtAp) Deposits in Space and Time
  Tuesday, 12 October 2021

  1:30 PM - 5:30 PM

  A107–A109
• TEMPERATURE – DEPTH RANGES OF CU-AU-MO-(AG-PB-ZN) ARC-RELATED MAGMATIC-HYDROTHERMAL SYSTEMS: PORPHYRY – EPITHERMAL ORE FORMATION FROM 10 KM TO THE SHALLOW SUBSURFACE
  T101 Metals for the Future: Geology of Critical and Basic Minerals for the Green Economy II
  Monday, 11 October 2021

  1:30 PM - 5:30 PM

  Portland Ballroom 257 (Hybrid Room)

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2019

• GEOCHEMISTRY OF CENOZOIC PLUTONIC ROCKS IN THE WESTERN CASCADES: TRACERS OF ARC EVOLUTION & ORE GENESIS
  33 Magmatism in the Cascades: Variations in Space and Time
  Friday, 17 May 2019

  8:00 AM - 12:00 PM

  Room C124

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2017

• TOPS AND BOTTOMS OF PORPHYRY COPPER DEPOSITS REVISITED: VERTICAL AND LATERAL EXTENTS FROM YERINGTON, NV, AND BUTTE, MT
  T237 System-Scale Zonation of Ore Systems: Insights into 3D Architecture from Lateral and Deep Exposures Due to Mining and Structural Deformation
  Tuesday, 24 October 2017

  1:30 PM - 5:30 PM

  Yakima 1

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2016

• STRUCTURAL EVOLUTION, VEIN ORIENTATION, AND PARAGENESIS OF THE BOTIJA PORPHYRY CU-MO-(AU) DEPOSIT, COLON, PANAMA
  T297 Economic Geology of the Extensional Terrains
  Wednesday, 28 September 2016

  1:30 PM - 5:30 PM

  Room 301
• GENESIS OF THE KASKANAK BATHOLITH, AND THE ROLE OF TITANITE AND OTHER ACCESSORY MINERALS ON TRACE ELEMENT DISTRIBUTIONS
  T32 Magmatic-Hydrothermal Ore Deposits: Metal Transport from Source to Sink
  Sunday, 25 September 2016

  1:30 PM - 5:30 PM

  Room 301
• ORES, MAGMATISM AND TECTONICS OF THE NORTHEASTERN SIERRA NEVADA MOUNTAINS—RECORD FROM THE LIGHTS CREEK COPPER DISTRICT, CALIFORNIA
  21 Linking Mesozoic Arcs,Tectonics and Mineral Deposits
  Wednesday, 6 April 2016

  8:30 AM - 12:30 PM

  Meeting Room 200 C
• GEOCHEMICAL CHARACTERIZATION OF THE KASKANAK BATHOLITH ASSOCIATED WITH THE PEBBLE CU-AU-MO PORPHYRY DEPOSIT, AND OTHER BARREN CRETACEOUS INTRUSIONS IN THE VICINITY: IMPLICATIONS FOR OF THE UNDERLYING CRUSTAL SECTION
  21 Linking Mesozoic Arcs,Tectonics and Mineral Deposits
  Wednesday, 6 April 2016

  8:30 AM - 12:30 PM

  Meeting Room 200 C
• THE KERR-SULPHURETS-MITCHELL DEPOSIT, BRITISH COLUMBIA: A SUITE OF DISMEMBERED CU-AU-AG-MO PORPHYRY ORE BODIES
  21 Linking Mesozoic Arcs,Tectonics and Mineral Deposits
  Wednesday, 6 April 2016

  8:30 AM - 12:30 PM

  Meeting Room 200 C
• LARGE-VOLUME PYROCLASTIC DEPOSITS ALONG THE EASTERN EDGE OF THE BOULDER BATHOLITH, SOUTHWESTERN MONTANA
  21 Linking Mesozoic Arcs,Tectonics and Mineral Deposits
  Wednesday, 6 April 2016

  8:30 AM - 12:30 PM

  Meeting Room 200 C

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2015

• GEOCHEMISTRY OF PLUTONIC ROCKS IN THE WESTERN CASCADES: RELATIONSHIP BETWEEN CRUSTAL SEGMENTATION & ORE GENESIS
  8 Tempo of Arc Emplacement and Accretion
  Tuesday, 12 May 2015

  8:00 AM - 12:00 PM

  Room 116

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2014

• ZIRCON GEOCHRONOLOGY AND GEOCHEMISTRY OF PLUTONIC ROCKS OF THE WESTERN CASCADES, WASHINGTON AND OREGON
  T307 New Insights on Porphyry Cu-Mo-Au Deposit Genesis, Fertility, and Exploration (Posters)
  Wednesday, 22 October 2014

  9:00 AM - 6:30 PM

  Exhibition Hall C
• THE GEOCHEMICAL AND MINERALOGIC FOOTPRINT OF HYDROTHERMAL ALTERATION AT BUTTE, MONTANA
  T249 Honoring the Diverse Career of Eric S. Cheney: From Ore Deposits and Sequence Stratigraphy to Pacific Northwest Geology and Citizen Responsibility
  Tuesday, 21 October 2014

  1:00 PM - 5:00 PM

  302/303
• STRUCTURAL ANALYSIS OF THE MOUNT POLLEY PORPHYRY CU-AU DEPOSIT: RESTORATION OF POST-MINERAL DEFORMATION USING ORE BODY GEOMETRY
  T242 Triassic-Jurassic Tectonics and Tectonic-Structural Controls on Porphyry and Related Mineralization in the Northern Cordillera
  Tuesday, 21 October 2014

  1:00 PM - 5:00 PM

  118
• GEOCHEMICAL CHARACTERISTICS OF THE EARLY JURASSIC LIGHTS CREEK AND MCKENZIE MEADOWS STOCKS, TAYLORSVILLE, CALIFORNIA; EVIDENCE OF SUBDUCTION-RELATED, CORDILLERAN ARC ACTIVITY IN NORTHEASTERN CALIFORNIA
  14 Mesozoic Paleogeography of the North American Cordillera
  Tuesday, 20 May 2014

  8:00 AM - 12:00 PM

  Procrastinator Theater

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2013

• ZIRCON COMPOSITIONAL EVIDENCE FOR SULFUR-DEGASSING FROM ORE-FORMING ARC MAGMAS
  T315 Recent Advances and Applications of Isotope Geochemistry and Geochronology to Ore Deposit Studies
  Wednesday, 30 October 2013

  8:00 AM - 12:00 PM

  Room 303
• GEOCHEMISTRY AND U-PB ZIRCON GEOCHRONOLOGY OF THE KASKANAK BATHOLITH, PEBBLE PORPHYRY CU-AU-MO DEPOSIT, ALASKA
  T234 Recent Advances and Applications of Isotope Geochemistry and Geochronology to Ore Deposit Studies (Posters)
  Tuesday, 29 October 2013

  9:00 AM - 6:30 PM

  Hall D

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2011

• ACADEMIC MINERAL RESOURCE (“ECONOMIC”) GEOLOGY IN THE USA – WHERE WE ARE AND WHERE TO GO?
  T141 A Healthy Society, Geosciences, and Natural Resources II
  Monday, 10 October 2011

  1:30 PM - 5:30 PM

  Room M100BC
• COMPOSITIONAL VARIATIONS IN HYDROTHERMAL WHITE MICAS AND CHLORITES IN A PORPHYRY CU SYSTEM AT YERINGTON, NV
  19 Geochemistry of Igneous Rocks: From Small Scales to Big Pictures (Posters)
  Thursday, 19 May 2011

  8:00 AM - 6:00 PM

  Grand Ballroom

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2009

• WALL-ROCK ALTERATION IN PORPHYRY COPPER DEPOSITS: PREDICTION OF HYDROTHERMAL FLUID COMPOSITIONS, FLOW PATHS, AND SULFIDE ORE DEPOSITION
  T239 Fluid-Driven Geochemical Transformations: In Honor of Harold Helgeson
  Wednesday, 21 October 2009

  8:00 AM - 12:00 PM

  Portland Ballroom 252
• GRANITE, PORPHYRIES, HYDROTHERMAL ACTIVITY AND VOLCANISM IN THE YERINGTON DISTRICT, NEVADA
  T158 Magmas and Volatiles: Linking Granites, Volcanoes, Geothermal Systems, and Mineral Deposits I
  Tuesday, 20 October 2009

  8:00 AM - 12:00 PM

  E143/144
• EVOLUTION OF VOLCANISM AND THE ASSOCIATED HIGH-SULFIDATION EPITHERMAL GOLD DEPOSITS AT YANACOCHA, PERU
  T158 Magmas and Volatiles: Linking Granites, Volcanoes, Geothermal Systems, and Mineral Deposits I
  Tuesday, 20 October 2009

  8:00 AM - 12:00 PM

  E143/144
• EUROPIUM ANOMALIES IN ZIRCON FROM GRANODIORITE PORPHYRY INTRUSIONS AT THE EL SALVADOR PORPHYRY COPPER DEPOSIT, CHILE
  T158 Magmas and Volatiles: Linking Granites, Volcanoes, Geothermal Systems, and Mineral Deposits I
  Tuesday, 20 October 2009

  8:00 AM - 12:00 PM

  E143/144
• LOW SALINITY FLUIDS FROM LARGE OPEN SYSTEM MAGMA CHAMBERS FORM PORPHYRY-CU (MO-AU) DEPOSITS
  T204 Magmas and Volatiles: Linking Granites, Volcanoes, Geothermal Systems, and Mineral Deposits II
  Tuesday, 20 October 2009

  1:30 PM - 5:30 PM

  E143/144

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2005

• ISOTOPIC EVIDENCE FOR THE MULTIPLE SOURCES OF LEAD IN PORPHYRY CU-MO AND BASE METAL LODE ORES AT BUTTE, MONTANA
  T138 Sources of Porphyry Copper Deposits: Magmas, Metals, and Fluids II
  Tuesday, 18 October 2005

  8:00 AM - 12:00 PM
• ORIGIN AND EVOLUTION OF HYDROTHERMAL FLUIDS THAT FORMED THE PORPHYRY CU-MO DEPOSIT IN BUTTE, MONTANA: A MULTI-FACETED FLUID INCLUSION STUDY
  T138 Sources of Porphyry Copper Deposits: Magmas, Metals, and Fluids II
  Tuesday, 18 October 2005

  8:00 AM - 12:00 PM