---

Activity

2022

• FRAMEWORK FOR AN INTEGRATED APPROACH TO CRITICAL MINERALS PROSPECTIVITY AND ENVIRONMENTAL CHARACTERIZATION OF MINE WASTE FOR ALASKA
  T267 Intersections of Sustainability and Geosciences (Posters)
  Wednesday, 12 October 2022

  2:00 PM - 6:00 PM

  Exhibit Hall F

---

2021

• THE USE OF MULTI-SCALE GEOCHEMICAL TECHNIQUES IN THE ASSESSMENT OF LEGACY MINE LAND REMEDIATION
  T134 Environmental Geochemistry and Health
  Tuesday, 12 October 2021

  8:00 AM - 12:00 PM

  A107–A109

---

2020

• MULTI-SCALE SCREENING TECHNIQUES FOR ASSESSING LEGACY MINE LAND SITES IN COLORADO
  T151 Environmental Geochemistry and Health II
  Wednesday, 28 October 2020

  1:30 PM - 5:30 PM

  Meeting Rooms

---

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

---

2016

• CHEMICAL SIGNATURE OF GROUNDWATER IN COVER OVERLYING DULUTH COMPLEX NI-CU-PGE DEPOSITS, NE MINNESOTA
  268 Economic Geology
  Wednesday, 28 September 2016

  8:00 AM - 12:00 PM

  Room 301
• METAL CONCENTRATIONS IN COVER OVERLYING DULUTH COMPLEX NI-CU-PGE DEPOSITS, NE MINNESOTA
  269 Geochemistry II
  Wednesday, 28 September 2016

  8:00 AM - 12:00 PM

  Room 403
• METAL CYCLING IN MOUNTAIN PINE BEETLE IMPACTED WATERSHEDS
  T345 The Colorado Scientific Society III: From the Mountains to the Plains—New Concepts and Discoveries in Colorado and the Rocky Mountain Region (Posters)
  Wednesday, 28 September 2016

  9:00 AM - 6:30 PM

  Exhibit Hall E/F

---

2014

• IAGC AWARDS- THE VERNADSKY MEDAL AND IAGC FELLOW
  T159 Trace Elements and Organics in Environmental and Urban Geochemistry I
  Monday, 20 October 2014

  1:00 PM - 5:00 PM

  204

---

2013

• SPATIAL AND GEOLOGIC CONTROLS ON CHROMIUM TRANSPORT FROM WATERSHEDS WITH ULTRAMAFIC ROCKS IN NORTHERN CALIFORNIA
  T245 Celebrating the Scientific Contributions of Kirk Nordstrom—Part 1: Acid to Neutral Mine Drainage, Geochemistry of Iron and Sulfur, Sulfate Minerals, Natural Background, and Geochemical Modeling (Posters)
  Tuesday, 29 October 2013

  9:00 AM - 6:30 PM

  Hall D
• BIOMINERALIZATION AND ZN ISOTOPE FRACTIONATION IN A MINING-AFFECTED STREAM IN SW SARDINIA, ITALY
  T149 Biogeochemical Processes Affecting Metal and Metalloid Isotopes (Posters)
  Monday, 28 October 2013

  9:00 AM - 6:30 PM

  Hall D
• REDOX REACTIONS DURING ARSENITE ADSORPTION ON FERRIHYDRITE
  34 Hydrogeology (Posters)
  Sunday, 27 October 2013

  9:00 AM - 6:30 PM

  Hall D

---

2011

• EFFECT OF ULTRAMAFIC INTRUSIONS AND ASSOCIATED MINERALIZATION ON THE AQUEOUS GEOCHEMISTRY OF THE TANGLE LAKES AREA, ALASKA
  T137 Sources, Transport, and Fate of Trace and Toxic Elements in the Environment
  Monday, 10 October 2011

  1:30 PM - 5:30 PM

  Room 102D-F

---

2010

• EVALUATION OF THE EXTENT OF CONTAMINATION CAUSED BY HISTORICAL MINING IN CATCHMENTS OF CENTRAL COLORADO
  T281 Advances in the Geology, Geochemistry, Geochronology, Isotope Geochemistry, Geophysics, Structural Geology, and Tectonics of Central Colorado
  Wednesday, 3 November 2010

  1:30 PM - 5:30 PM

  Room 205
• 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
• 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

---

2009

• USE OF CU AND ZN ISOTOPES TO IDENTIFY METAL SOURCES AND ATTENUATION MECHANISMS AT THE FORMER WALDORF MINE, CLEAR CREEK COUNTY, COLORADO
  T119 Sources, Transport, and Fate of Trace and Toxic Elements in the Environment (Posters)
  Monday, 19 October 2009

  9:00 AM - 6:00 PM

  Hall A
• CHARACTERIZATION OF THE POTENTIAL FOR OXIDATION AND MOBILIZATION OF GEOGENIC AND FERTILIZER-DERIVED CHROMIUM IN SOILS OF THE SACRAMENTO VALLEY, CALIFORNIA
  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

---

2008

• A Regional Soil and Sediment Geochemical Study in Northern California
  T325 Soil Geochemistry: Databases and Applications at Regional to Continental Scales
  Wednesday, 8 October 2008

  1:30 PM - 5:30 PM
• A Regional-Scale Study of Chromium and Nickel in Soils of Northern California
  T325 Soil Geochemistry: Databases and Applications at Regional to Continental Scales
  Wednesday, 8 October 2008

  1:30 PM - 5:30 PM

---

2007

• FRACTIONATION OF CU AND ZN ISOTOPES DURING ADSORPTION ONTO AMORPHOUS FE(III) OXIDES: EXPERIMENTAL MIXING OF ACID-ROCK DRAINAGE AND AMBIENT RIVER WATER
  T63 Sources, Transport, Fate, and Toxicology of Trace Elements in the Environment II
  Monday, 29 October 2007

  8:00 AM - 12:00 PM
• ARSENIC AND ANTIMONY IN THE SOIL-VEGETATION-STREAM WATER SYSTEM OF EASTERN ALASKA
  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
• 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
• 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
• LANDSCAPE ECOTOXICOLOGY: LINKING CATCHMENT LITHOLOGY TO THE ECOLOGICAL STATE OF STREAMS IN THE CENTRAL ROCKY MOUNTAINS OF COLORADO
  T37 Sources, Transport, Fate, and Toxicology of Trace Elements in the Environment I
  Sunday, 28 October 2007

  1:30 PM - 5:30 PM

---

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
• GEOCHEMISTRY OF SURFACE-WATERS IN MINERALIZED AND NON-MINERALIZED AREAS OF THE YUKON-TANANA UPLANDS, ALASKA
  T73 Sources, Transport, Fate, and Toxicology of Trace Elements in the Environment
  Monday, 17 October 2005

  8:00 AM - 12:00 PM
• SEPARATION OF COPPER, IRON, AND ZINC FROM COMPLEX AQUEOUS SOLUTIONS FOR ISOTOPIC MEASUREMENT: METAL SOURCES AND PROCESSES OF ACID-ROCK DRAINAGE
  T20 Experimental, Theoretical, Stable Isotope, and Predictive Studies of Sulfide Oxidation Processes in the Field and Laboratory
  Sunday, 16 October 2005

  8:00 AM - 12:00 PM
• A LASER ABLATION ICP-MS STUDY OF TREE RINGS IN AN AREA IMPACTED BY METAL MINING, WALDORF MINE, COLORADO, USA
  T46 Dendrogeology: Geologic Applications of Tree-Ring Studies
  Sunday, 16 October 2005

  1:30 PM - 3:30 PM

---

2004

• DEVELOPMENT AND APPLICATION OF A NEAR REAL-TIME IN-SITU ANALYZER TO DETERMINE NA, MG, AND CA IN STREAMS AFFECTED BY COAL BED METHANE DISCHARGE WATERS
  T232 Upcoming Revolutions in Observing Systems: Implications for Hydrogeology
  Wednesday, 10 November 2004

  1:30 PM - 5:30 PM

---

2003

• RARE-EARTH ELEMENT MOBILITY IN MINERALIZED AREAS OF THE SUB-ARCTIC BOREAL FOREST IN EAST-CENTRAL ALASKA
  164 Geochemistry, Other II: A Geochemical Potpourri
  Tuesday, 4 November 2003

  1:30 PM - 5:30 PM

---

2002

• AUFEIS ACCUMULATIONS IN STREAM BOTTOMS IN ARCTIC AND SUBARCTIC ENVIRONMENTS AS AN INDICATOR OF GEOLOGIC STRUCTURE
  155 Hydrogeology I: Physical Hydrogeology
  Tuesday, 29 October 2002

  1:30 PM - 5:30 PM
• DEVELOPMENT OF GEOENVIRONMENTAL MODELS FOR MINERAL DEPOSITS BY THE USGS
  T127 Mining in the Twenty-First Century: Meeting the Environmental Challenges
  Tuesday, 29 October 2002

  8:00 AM - 12:00 PM
• GEOLOGIC CONTROLS ON WATER QUALITY IN A MINERALIZED REGION OF COLORADO
  10 Hydrogeology, Aqueous Geochemistry, Remote Sensing/GIS (Posters)
  Wednesday, 8 May 2002

  8:00 AM - 12:00 PM

---

2001

• USE OF TREE RING CHEMISTRY TO EVALUATE NATURAL BASELINES AND HISTORIC METAL LOADS FROM A BASE-METAL MINE AND MILL, COLORADO, USA
  55 Environmental Geoscience I
  Tuesday, 6 November 2001

  8:00 AM - 12:00 PM

---

Date Unknown

• GEOLOGIC-STRUCTURAL CONTROL OF FRACTURE-CONTROLLED GROUND-WATER FLOW AT A VARIETY OF SPATIAL SCALES
  58 Integrated Approaches to Water Quality Issues (Posters)
• DEVELOPMENT OF A CONTINUOUS IN-SITU ZINC ANALYZER AND LONG TERM WATER SAMPLER FOR MONITORING STREAMS IMPACTED BY ACID ROCK DRAINAGE
  T92 Integrated Studies of the Effects of Abandoned Mines on the Environment (Posters)
• PERCHLORATE OCCURRENCE IN SHALLOW GROUND WATER IN THE NORTH CENTRAL UNITED STATES
  T192 Naturally Occurring Perchlorate (and Other Oxyanions) in the Hydrologic Cycle—Origins, Accumulation, Transformations, and Transport (Posters)
• USE OF TREE RING CHEMISTRY TO EVALUATE NATURAL BASELINES AND HISTORIC METAL LOADS FROM A BASE-METAL MINE AND MILL, COLORADO, USA
  58 Integrated Approaches to Water Quality Issues (Posters)
• THE DETERMINATION OF SUBSURFACE HYDROGEOLOGY IN A NATURALLY ACIDIC RIVER USING SURFACE DATA AND MODELING TOOLS, SUMMIT COUNTY, COLORADO
  218 Hydrogeology (Posters) II: Chemical Hydrogeology
• COUPLED DEFORMATION, CHEMICAL TRANSPORT, AND HEAT TRANSPORT IN EPITHERMAL BONANZA-ORE FORMATION
  12 Coupled Earth Processes: Deformation, Chemical Reaction, and Heat in Fault- and Fracture-Dominated Fluid Flow (Posters)
• URANIUM MOBILIZATION IN GROUNDWATERS: GEOCHEMICAL INVESTIGATIONS AND WATER-ROCK INTERACTION MODELLING IN A COASTAL AREA OF EASTERN SARDINIA (ITALY)
  117 Geochemistry (Posters) I