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Activity

2024

• FATE AND TRANSPORT OF REE IN CARBONATITE-RELATED FLUIDS FROM THE BEAR LODGE ALKALINE COMPLEX, WY: EVIDENCE FROM FLUID INCLUSION STUDIES
  14 Magmatic Rare Earth Element Ore Deposits and Minerals for the Future
  Wednesday, 15 May 2024

  1:30 PM - 5:30 PM

  Birch Ballroom

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2022

• TIMING OF SILICATE AND CARBONATITE MAGMATISM FORMING THE BEAR LODGE ALKALINE COMPLEX: NEW INSIGHTS FROM 40AR/39AR GEOCHRONOLOGY
  T94 Critical Minerals and Framework Geology: The USGS Earth Mapping Resources Initiative (Earth MRI) and Related Activities (Posters)
  Monday, 10 October 2022

  9:00 AM - 1:00 PM

  Exhibit Hall F

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2019

• CONSTRAINTS ON THE DEPTH OF ACTIVE GROUNDWATER CIRCULATION IN A SEDIMENTARY-ROCK MOUNTAIN BLOCK PROVIDED BY TEMPERATURE, CHEMISTRY, AND AGE DATA
  T69 Mountain Groundwater
  Sunday, 22 September 2019

  1:30 PM - 5:30 PM

  Room 104AB, West Building

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2016

• RARE EARTH ELEMENT AND NIOBIUM ENRICHMENTS IN CARBONATITES
  T3 Rare Earth and Critical Elements in Ore Deposits
  Sunday, 25 September 2016

  8:00 AM - 12:00 PM

  Room 301

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2014

• RARE EARTH ELEMENT VARIATIONS IN THE ELK CREEK CARBONATITE, S.E. NEBRASKA
  14 Carbonatites and Other Alkalic Rocks
  Friday, 25 April 2014

  8:15 AM - 12:00 PM

  Arbor 1
• ISOTOPIC EVIDENCE ON THE AGE AND ORIGIN OF THE ELK CREEK CARBONATITE, SE NEBRASKA
  14 Carbonatites and Other Alkalic Rocks
  Friday, 25 April 2014

  8:15 AM - 12:00 PM

  Arbor 1
• MULTI-GENERATIONAL NIOBIUM MINERALIZATION AT THE ELK CREEK CARBONATITE, ELK CREEK, NE
  14 Carbonatites and Other Alkalic Rocks
  Friday, 25 April 2014

  8:15 AM - 12:00 PM

  Arbor 1
• THE ELK CREEK CARBONATITE COMPLEX
  14 Carbonatites and Other Alkalic Rocks
  Friday, 25 April 2014

  8:15 AM - 12:00 PM

  Arbor 1

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2013

• RARE EARTH ELEMENT FATE AND TRANSPORT IN FLUIDS: INSIGHT INTO ORE-GRADE ENRICHMENT
  382 Rare Earth Elements: Minerals, Mines, Magnets (and More)
  Wednesday, 30 October 2013

  1:00 PM - 5:00 PM

  Mile High Ballroom 1AB
• NIOBIUM PYROCHLORE MINERALIZATION IN AN IRON-RICH DOLOMITE CARBONATITE, ELK CREEK, NEBRASKA (USA)
  T207 Evolution of REE-Enriched Carbonatite-Alkalic Rock Systems: In Honor of Daniel R. Shawe
  Tuesday, 29 October 2013

  8:00 AM - 12:00 PM

  Room 304
• OVERVIEW OF THE ELK CREEK CARBONATITE, SOUTHEASTERN NEBRASKA, USA
  21 REEs and Related Deposits in the Rocky Mountain–High Plains Region and Beyond
  Friday, 17 May 2013

  8:30 AM - 12:00 PM

  North Conference Room
• GEOCHEMICAL AND ISOTOPIC CONSTRAINTS ON THE AGE AND ORIGIN OF THE ELK CREEK CARBONATITE COMPLEX, SE NEBRASKA
  21 REEs and Related Deposits in the Rocky Mountain–High Plains Region and Beyond
  Friday, 17 May 2013

  8:30 AM - 12:00 PM

  North Conference Room

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2012

• POSSIBLE LINKS BETWEEN CLIMATE CHANGE AND DETERIORATING WATER QUALITY IN A MINERALIZED WATERSHED
  T136 Sources, Transport, Fate, and Toxicology of Trace Elements and Organics in the Environment
  Tuesday, 6 November 2012

  8:00 AM - 12:00 PM

  203A

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2011

• POTENTIAL EFFECTS OF CLIMATE CHANGE ON WATER QUALITY IN MINERALIZED WATERSHEDS
  32 Plenary: Geological Research for Our Health (2011 - Year of Science in Health Research)
  Tuesday, 6 September 2011

  3:30 PM - 5:50 PM

  A 014

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2010

• THE IREVIKEN EVENT: A SILURIAN OAE
  T238 Marine Redox Evolution: Controls and Consequences I
  Wednesday, 3 November 2010

  8:00 AM - 12:00 PM

  Room 203
• HYDROGEOCHEMISTRY OF ARSENIC IN CIRCUMNEUTRAL GROUNDWATER, ESTER DOME, FAIRBANKS MINING DISTRICT, ALASKA
  T210 Neutral Mine Drainage: Release, Transport, and Attenuation of Metals and Trace Elements in Circumneutral Mining Environments
  Tuesday, 2 November 2010

  1:30 PM - 5:30 PM

  Room 601
• RECONNAISSANCE OF WEATHERING RATES IN ALPINE CATCHMENTS OF CENTRAL COLORADO, USA
  T211 Sources, Transport, and Fate of Trace and Toxic Elements in the Environment
  Tuesday, 2 November 2010

  1:30 PM - 5:30 PM

  Room 207
• DETERMINING THE ORIGIN OF PORTAL DISCHARGE BY UNDERGROUND SAMPLING, THE STANDARD MINE, CRESTED BUTTE, COLORADO
  T82 Sources of Acid Rock Drainage to Draining Mine Tunnels and in Complex Geologic Systems
  Monday, 1 November 2010

  8:00 AM - 12:00 PM

  Room 402
• PREDICTING RISKS TO AQUATIC LIFE BASED on LITHOLOGIC SPECIFIC GEOCHEMICAL BASELINES
  T87 Integrated Approaches to Modeling Geochemical, Hydrological, and Ecological Processes in Watersheds I
  Monday, 1 November 2010

  8:00 AM - 12:00 PM

  Room 207
• APPLYING NUMERICAL MODELING TO EVALUATE THE SIGNIFICANCE OF CLIMATE AND HYDROLOGY IN THE FORMATION OF NATURAL ACID-ROCK DRAINAGE IN MINERALIZED WATERSHEDS
  T87 Integrated Approaches to Modeling Geochemical, Hydrological, and Ecological Processes in Watersheds I
  Monday, 1 November 2010

  8:00 AM - 12:00 PM

  Room 207

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2009

• EVALUATING THE FATE OF GADOLINIUM THROUGH MUNICIPAL WASTEWATER TREATMENT PLANT OPERATIONS
  T70 Sources, Transport, and Fate of Trace and Toxic Elements in the Environment II
  Sunday, 18 October 2009

  1:30 PM - 5:30 PM

  Portland Ballroom 253

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2007

• TRACE ELEMENT AND LEAD ISOTOPIC SIGNATURES IN ALPINE LAKE SEDIMENTS, FRONT RANGE, COLORADO
  T63 Sources, Transport, Fate, and Toxicology of Trace Elements in the Environment II
  Monday, 29 October 2007

  8:00 AM - 12:00 PM
• REGIONAL VARIATIONS IN SURFACE-WATER CHEMISTRY IN CENTRAL COLORADO, INCLUDING AREAS AFFECTED BY HIGH BACKGROUND AND HISTORIC MINING
  T37 Sources, Transport, Fate, and Toxicology of Trace Elements in the Environment I
  Sunday, 28 October 2007

  1:30 PM - 5:30 PM
• LANDSCAPE GEOCHEMISTRY OF CENTRAL COLORADO—RESULTS FROM STREAM-SEDIMENT DATA
  T37 Sources, Transport, Fate, and Toxicology of Trace Elements in the Environment I
  Sunday, 28 October 2007

  1:30 PM - 5:30 PM
• ISOTOPIC SIGNATURES OF DISSOLVED CU, FE, AND ZN IN AN ALPINE WATERSHED IMPACTED BY ACIDIC METAL-RICH DRAINAGE
  T42 Innovative Uses of Environmental Isotopes in Hydrology
  Sunday, 28 October 2007

  1:30 PM - 5:30 PM

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2005

• CONTROLS OF SURFACE AND GROUND-WATER CHEMISTRY IN MINERALIZED BUT UNMINED AREAS, SOUTHERN ROCKY MOUNTAINS
  T175 Mine Rock Piles and Pyritically Altered Areas: Their Slope Stability and Effect on Water Quality
  Tuesday, 18 October 2005

  1:30 PM - 5:30 PM

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2004

• LINKING GEOCHEMICAL AND HYDROLOGIC MODELS OF GROUND WATER IN TWO ROCKY MOUNTAIN CATCHMENTS: STRAIGHT CREEK, NM AND HANDCART GULCH, CO
  T233 The Occurrence, Storage, and Flow of Groundwater in Mountainous Terrain
  Wednesday, 10 November 2004

  1:30 PM - 5:30 PM
• INSIGHTS INTO GROUNDWATER FLOW IN AN ALPINE WATERSHED PROVIDED BY A COUPLED HEAT, MASS, AND FLUID TRANSPORT MODEL, HANDCART GULCH, COLORADO
  T233 The Occurrence, Storage, and Flow of Groundwater in Mountainous Terrain
  Wednesday, 10 November 2004

  1:30 PM - 5:30 PM
• CONTRASTING GROUND-WATER GEOCHEMISTRY BETWEEN ACIDIC DEBRIS-FLOW WATERS AND NEUTRAL-PH BEDROCK WATERS IN MINERALIZED VOLCANICS, RED RIVER VALLEY, NEW MEXICO
  T200 Mountain Watershed Pollutant Transport and Water Quality Issues, Including Groundwater Surface-Water Interplay in Pollutant Transfer
  Wednesday, 10 November 2004

  8:00 AM - 12:00 PM
• STORM AND DIEL SURFACE-WATER CHEMISTRY VARIATIONS IN THE RED RIVER NEAR QUESTA, NEW MEXICO
  T9 Sources, Transport, Fate, and Toxicology of Trace Elements in the Environment
  Sunday, 7 November 2004

  8:00 AM - 12:00 PM

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2003

• COUPLING OF INORGANIC, PHARMACEUTICAL, AND ORGANIC WASTEWATER CHEMISTRY, BOULDER CREEK, COLORADO
  T141 Pharmaceuticals and Emerging Organic Contaminants in the Hydrologic Environment: Progressing from Occurrence to Fate and Effects
  Tuesday, 4 November 2003

  8:00 AM - 12:00 PM
• A HYDROGEOCHEMICAL APPROACH FOR DETERMINING SOLUTE SOURCES IN THE BOULDER CREEK WATERSHED, COLORADO
  11 Water Resources in the Rocky Mountains: A Holistic View Centered on Coupled Processes
  Thursday, 8 May 2003

  1:30 PM - 4:50 PM

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2002

• THE QUESTA BASELINE AND PRE-MINING GROUND-WATER QUALITY INVESTIGATION: PRELIMINARY DATA
  T17 Groundwater and Hardrock Mining
  Sunday, 27 October 2002

  8:00 AM - 12:00 PM

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2001

• LIMITATIONS TO STREAM RECOVERY DUE TO ALUMINUM PRECIPITATION AFTER REMEDIATION OF ACIDIC MINE DRAINAGE
  152 General Geochemistry
  Thursday, 8 November 2001

  8:00 AM - 12:00 PM
• THE IMPORTANCE OF IRON COLLOIDS IN ACID MINE DRAINAGE AND IMPLICATIONS FOR REMEDIATION
  78 Geochemistry of Health and Environmental Transport
  Tuesday, 6 November 2001

  1:30 PM - 5:30 PM
• ARSENIC VARIABILITY IN GROUND WATER, ESTER DOME, ALASKA
  T22 Natural Arsenic in Groundwater: Science, Regulation, and Health Implications (Posters)
  Monday, 5 November 2001

  8:00 AM - 12:00 PM

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Date Unknown

• THE APPLICATION OF GEOSTATISTICS TO EVALUATE BASELINE WATER-QUALITY DATA, UPPER ANIMAS RIVER WATERSHED, SILVERTON, COLORADO
  T92 Integrated Studies of the Effects of Abandoned Mines on the Environment (Posters)