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Activity

2023

• PALEOPROTEROZOIC IRON-FORMATIONS OF THE LAKE SUPERIOR REGION IN TIME AND SPACE
  T135 Assembling a Craton: Recent Insights into Precambrian Assembly and Growth of Laurentia and Its Cratonic Components
  Monday, 16 October 2023

  1:30 PM - 5:30 PM

  329

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2022

• GEOPHYSICAL MAPPING OF THE GREAT LAKES TECTONIC ZONE IN THE CENTRAL UPPER PENINSULA, MICHIGAN
  T101 From Outcrops to the Base of the Crust: Integrated Geophysical and Geological Illumination of Earth’s Tectonic Fabrics to Refine Understanding of Crustal Evolution and Natural Resources (Posters)
  Monday, 10 October 2022

  9:00 AM - 1:00 PM

  Exhibit Hall F
• GEOCHRONOLOGY OF THE GREAT LAKES TECTONIC ZONE AND SURROUNDING REGION, CENTRAL UPPER PENINSULA, MICHIGAN, USA
  T101 From Outcrops to the Base of the Crust: Integrated Geophysical and Geological Illumination of Earth’s Tectonic Fabrics to Refine Understanding of Crustal Evolution and Natural Resources (Posters)
  Monday, 10 October 2022

  9:00 AM - 1:00 PM

  Exhibit Hall F
• PROVENANCE PATTERNS AND TECTONIC STYLES OF CA. 2.3–1.8 GA METASEDIMENTARY STRATA IN NORTHERN MICHIGAN BASED ON REGIONAL MAPPING AND DETRITAL ZIRCON U-PB GEOCHRONOLOGY
  T31 Evaluation of Proterozoic Tectonic Styles in North America and Their Influence on Phanerozoic Structures and Mineralization (Posters)
  Sunday, 9 October 2022

  9:00 AM - 1:00 PM

  Exhibit Hall F

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2020

• EVIDENCE FOR A CONCEALED MIDCONTINENT RIFT-RELATED NORTHEAST IOWA INTRUSIVE COMPLEX
  T132 Assembling Laurentia: Mesoproterozoic to Early Neoproterozoic Tectonic Evolution of Laurentia and Its Role within the Supercontinent Rodinia I
  Wednesday, 28 October 2020

  1:30 PM - 5:30 PM

  Meeting Rooms
• GEOPHYSICAL INSIGHTS INTO A PALEOPROTEROZOIC WILSON CYCLE ALONG THE SOUTHERN MARGIN OF THE SUPERIOR PROVINCE, CENTRAL UPPER PENINSULA, MICHIGAN
  T97 Assembling Laurentia: Turning Points in Paleoproterozoic Tectonic Evolution II
  Tuesday, 27 October 2020

  5:30 PM - 8:00 PM

  Meeting Rooms

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2018

• THE MANCHESTER AND VINTON PLUTONS: KEY COMPONENTS OF A MIDCONTINENT RIFT-RELATED INTRUSIVE COMPLEX IN THE IOWA BASEMENT?
  T68 Evolution of the Midcontinent Rift: A Window into Proterozoic Environments, a Repository of Minerals, and a Lesson in Rifting II
  Sunday, 4 November 2018

  1:30 PM - 5:30 PM

  Room 242

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2017

• VARIATIONS IN AMPHIBOLE CHEMISTRY IN THE IRONWOOD IRON-FORMATION, GOGEBIC IRON RANGE, WISCONSIN, USA
  267 D33. Mineralogy/Crystallography (Posters)
  Tuesday, 24 October 2017

  9:00 AM - 6:30 PM

  Halls 4EF

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2016

• REWORKED AND K-METASOMATIZED EJECTA FROM THE SUDBURY IMPACT OCCURS IN MULTIPLE BEDS IN THE GOGEBIC IRON RANGE, WISCONSIN, USA
  T290 Impact Cratering on Earth and throughout the Solar System
  Wednesday, 28 September 2016

  8:00 AM - 12:00 PM

  Room 201
• MORPHOLOGICAL CHARACTERIZATION AND MINERAL CHEMISTRY OF AMPHIBOLES IN THE IRONWOOD IRON-FORMATION, GOGEBIC IRON RANGE, WISCONSIN, USA
  334 Mineralogy/Crystallography (Posters)
  Wednesday, 28 September 2016

  9:00 AM - 6:30 PM

  Exhibit Hall E/F
• METALLOGENY OF THE 1.1 GA MIDCONTINENT RIFT
  T37 Precambrian Evolution and Mineral Resources of the Midcontinent Rift Region II: In Honor of William J. Hinze
  Sunday, 25 September 2016

  1:30 PM - 5:30 PM

  Room 407
• ALMOST AN OCEAN–THE EVOLUTION OF THE 1.1 GA MIDCONTINENT RIFT
  T7 Precambrian Evolution and Mineral Resources of the Midcontinent Rift Region I: In Honor of William J. Hinze
  Sunday, 25 September 2016

  8:00 AM - 12:00 PM

  Room 407
• THE NORTHEAST IOWA INTRUSIVE COMPLEX: A MAJOR UNWRITTEN CHAPTER IN THE STORY OF THE MIDCONTINENT RIFT SYSTEM?
  T37 Precambrian Evolution and Mineral Resources of the Midcontinent Rift Region II: In Honor of William J. Hinze
  Sunday, 25 September 2016

  1:30 PM - 5:30 PM

  Room 407

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2014

• A U.S. NATIONAL PERSPECTIVE ON THE LEAD CONTENT OF SOILS
  T190 Trace Elements and Organics in Environmental and Urban Geochemistry II
  Tuesday, 21 October 2014

  8:00 AM - 12:00 PM

  204
• DISTRIBUTION OF PB, CD, CR, CU, ZN, NI, AND BA IN SOILS OF THE CONTERMINOUS UNITED STATES
  T133 Trace Elements and Organics in Environmental and Urban Geochemistry(Posters)
  Monday, 20 October 2014

  9:00 AM - 6:30 PM

  Exhibition Hall C
• DISTINCTIVE GEOPHYSICAL ANOMALIES OVER NORTHEAST IOWA: WHAT DO THEY REPRESENT FOR PROTEROZOIC MAGMATISM AND MINERAL RESOURCES?
  9 The Midcontinent Rift System and Beyond: New Developments in Central North American Precambrian Geology
  Thursday, 24 April 2014

  2:40 PM - 5:05 PM

  Arbor 1

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2013

• QUARTZ DISTRIBUTION IN A-HORIZON SOILS OF THE CONTERMINOUS U.S.—ITS EFFECT ON MAJOR AND TRACE ELEMENT DISTRIBUTION PATTERNS
  T391 Geochemical Mapping at Regional to Continental Scales
  Wednesday, 30 October 2013

  1:00 PM - 5:00 PM

  Room 601
• MAPPING THE DISTRIBUTION OF ARSENIC IN SOILS OF THE CONTERMINOUS UNITED STATES
  T391 Geochemical Mapping at Regional to Continental Scales
  Wednesday, 30 October 2013

  1:00 PM - 5:00 PM

  Room 601
• NEW SOIL GEOCHEMISTRY AND MINERALOGY FOR THE CONTERMINOUS UNITED STATES
  T391 Geochemical Mapping at Regional to Continental Scales
  Wednesday, 30 October 2013

  1:00 PM - 5:00 PM

  Room 601
• A DYNAMIC DATABASE FOR GEOCHEMICAL AND MINERALOGICAL DATA FOR SOILS OF THE CONTERMINOUS UNITED STATES COLLECTED FOR THE USGS GEOCHEMICAL LANDSCAPES PROJECT
  T391 Geochemical Mapping at Regional to Continental Scales
  Wednesday, 30 October 2013

  1:00 PM - 5:00 PM

  Room 601
• HIGH-RESOLUTION, MULTI-METHOD GEOPHYSICAL IMAGING OF A PORTION OF THE NORTHEAST IOWA INTRUSIVE COMPLEX
  379 Geophysics/Tectonophysics/Seismology
  Wednesday, 30 October 2013

  1:00 PM - 5:00 PM

  Room 304

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2012

• USING QUANTITATIVE MINERALOGY TO ENHANCE INTERPRETATIONS OF NATIONAL-SCALE PATTERNS OF TRACE ELEMENT DISTRIBUTIONS IN SOIL—RESULTS FROM THE USGS SOIL GEOCHEMICAL AND MINERALOGIC SURVEY OF THE CONTERMINOUS UNITED STATES
  T162 Sources, Transport, Fate, and Toxicology of Trace Elements and Organics in the Environment (Posters)
  Tuesday, 6 November 2012

  9:00 AM - 6:00 PM

  Hall B
• SOIL GEOCHEMISTRY AND MINERALOGY FOR THE CONTERMINOUS UNITED STATES – THE USGS GEOCHEMICAL LANDSCAPES SOIL SURVEY
  T162 Sources, Transport, Fate, and Toxicology of Trace Elements and Organics in the Environment (Posters)
  Tuesday, 6 November 2012

  9:00 AM - 6:00 PM

  Hall B

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2011

• THE 1.1 GA MIDCONTINENT RIFT IN THE LAKE SUPERIOR REGION
  T87 Geology and Mineral Deposits of the Midcontinent Rift I
  Monday, 10 October 2011

  8:00 AM - 12:00 PM

  Room 101H-J
• DISTRIBUTION OF TRACE AND POTENTIALLY TOXIC ELEMENTS IN SOILS AT THE NATIONAL SCALE – THE USGS GEOCHEMICAL LANDSCAPES PROJECT
  T40 Sources, Transport, and Fate of Trace and Toxic Elements in the Environment (Posters)
  Sunday, 9 October 2011

  9:00 AM - 6:00 PM

  Hall C

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2010

• ACCRETIONARY LAPILLI IN THE SUDBURY IMPACT LAYER, LAKE SUPERIOR REGION, U.S. AND CANADA
  T69 Impact Cratering: From the Lab to the Field; from the Earth to the Planets
  Sunday, 31 October 2010

  1:30 PM - 5:30 PM

  Mile High Ballroom Prefunction

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2009

• EXTRATERRESTRIAL CAUSE FOR THE DEMISE OF BANDED IRON FORMATIONS AT 1.85 GA
  266 Precambrian Geology
  Wednesday, 21 October 2009

  1:30 PM - 5:30 PM

  B117/118/119
• SEISMIC DEFORMATION OF PALEOPROTEROZOIC AND ARCHEAN ROCKS IN NORTHERN MICHIGAN CAUSED BY THE 1850 MA SUDBURY IMPACT
  T207 Impact Cratering from the Microscopic to the Planetary Scale I
  Tuesday, 20 October 2009

  1:30 PM - 5:30 PM

  A106

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2008

• Continental-Scale Patterns in Soil Geochemistry and Mineralogy: Results from Two Transects across the United States and Canada
  T325 Soil Geochemistry: Databases and Applications at Regional to Continental Scales
  Wednesday, 8 October 2008

  1:30 PM - 5:30 PM
• Geochemical transect of Alaska--the chemical weathering of soil as it relates to climate and biota
  T325 Soil Geochemistry: Databases and Applications at Regional to Continental Scales
  Wednesday, 8 October 2008

  1:30 PM - 5:30 PM
• Synchronous Deposition of Paleoproterozoic Superior-Type Banded Iron-Formations and Volcanogenic Massive Sulfides In the Lake Superior Region: Implications for the Tectonic Evolution of the Penokean Orogen
  256 Economic Geology
  Tuesday, 7 October 2008

  1:30 PM - 5:30 PM

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2007

• GROWTH AND EVOLUTION OF ARCHEAN AND PROTEROZOIC LITHOSPHERE IN MIDDLE LAURENTIA
  T229 A Synoptic Crustal Section from the Cascadia Margin to the Southern Appalachians: Focusing EarthScope Research on Crustal Domains, their Boundaries, and Fundamental Processes of the U.S. Continent
  Wednesday, 31 October 2007

  1:30 PM - 5:30 PM
• THE PENOKEAN OROGENY IN THE LAKE SUPERIOR REGION
  43 Geologic Framework of the U.S. Continental Interior
  Friday, 13 April 2007

  1:20 PM - 5:00 PM

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2006

• DISCOVERY OF THE SUDBURY IMPACT LAYER IN MICHIGAN AND ITS POTENTIAL SIGNIFICANCE
  T21 Terrestrial Impact Breccias
  Sunday, 22 October 2006

  8:00 AM - 12:00 PM

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2005

• CHEMICAL VARIATION IN A- AND C-HORIZON SOIL ALONG TWO NORTH AMERICAN CONTINENTAL TRANSECTS
  156 Environmental Geoscience (Posters)
  Tuesday, 18 October 2005

  8:00 AM - 12:00 PM
• THE NORTH AMERICAN MIDCONTINENT RIFT SYSTEM-AN OVERVIEW OF A CENTURY OF STUDIES
  28 The Midcontinent Rift in the Lake Superior Region: A Modern Integration of a Century of Studies
  Friday, 20 May 2005

  8:00 AM - 12:00 PM
• GEOLOGY OF THE MIDCONTINENT RIFT IN WESTERN LAKE SUPERIOR
  28 The Midcontinent Rift in the Lake Superior Region: A Modern Integration of a Century of Studies
  Friday, 20 May 2005

  8:00 AM - 12:00 PM
• A GEOGRAPHIC INFORMATION SYSTEM ON THE GEOLOGY AND MINERAL RESOURCES OF THE MIDCONTINENT RIFT SYSTEM
  22 Evolution of Crustal Melts & Mineral Deposits (Posters)
  Thursday, 19 May 2005

  1:20 PM - 5:20 PM
• GEOLOGY OF PRECAMBRIAN BASEMENT ROCKS IN IOWA AND THE SOUTHERN PARTS OF WISCONSIN AND MINNESOTA
  21 Continental Tectonics of Shield Regions (Posters)
  Thursday, 19 May 2005

  1:20 PM - 5:20 PM

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2003

• DESCRIBING THE GEOCHEMICAL LANDSCAPE OF NORTHWESTERN WISCONSIN, USA
  T18 Comprehensive Landscape Analysis—A Predictive Tool for Mapping Surficial Deposits and Their Environmental Attributes
  Sunday, 2 November 2003

  8:00 AM - 12:00 PM

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2002

• PROLONGED INFLUENCE OF WILDFIRES ON THE GEOCHEMISTRY OF FOREST SOILS, ISLE ROYALE NATIONAL PARK, MICHIGAN AND VOYAGEURS NATIONAL PARK, MINNESOTA
  T143 Geomorphic Impacts of Wildfire I
  Tuesday, 29 October 2002

  8:00 AM - 12:00 PM

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2001

• 11,000 YEARS OF MERCURY DEPOSITION IN ELK LAKE, MINNESOTA--EFFECTS OF CLIMATE AND VEGETATION CHANGE ON THE MERCURY CYCLE
  77 Environmental Geoscience II
  Tuesday, 6 November 2001

  1:30 PM - 5:30 PM
• THE EFFECT OF FIRE ON MERCURY AND CARBON IN FOREST SOILS: RESULTS FROM NORTHERN MICHIGAN AND MINNESOTA
  77 Environmental Geoscience II
  Tuesday, 6 November 2001

  1:30 PM - 5:30 PM
• SEISMIC REFLECTION IMAGING OF THE MIDCONTINENT RIFT AND ITS ROLE IN MODERN STUDIES OF THE PROTEROZOIC CRUSTAL EVOLUTION OF THE NORTH-CENTRAL UNITED STATES
  T36 The Proterozoic of the Eastern Midcontinent and Beyond
  Monday, 5 November 2001

  1:30 PM - 5:30 PM
• A GEOPHYSICAL VIEW OF THE PRECAMBRIAN BASEMENT OF SOUTHERN WISCONSIN
  4 Probing the Precambrian in the Midwest: Reconciling Geological, Geochemical and Geophysical Observations-I
  Monday, 23 April 2001

  8:00 AM - 12:00 PM
• REINTERPRETATION OF THE 1.1 GA CHENGWATANA VOLCANICS IN THE ST. CROIX HORST, MINNESOTA AND WISCONSIN
  12 Probing the Precambrian in the Midwest: Reconciling Geological, Geochemical and Geophysical Observations-II
  Monday, 23 April 2001

  1:20 PM - 4:40 PM

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Date Unknown

• DISTAL EJECTA FROM THE 1850 MA SUDBURY IMPACT IN THE LAKE SUPERIOR IRON RANGES
  82 Precambrian Geology (Posters)
• Shifts in Global Metallogeny at 1850 Ma: A Connection to the Giant Sudbury Impact Event?
  145 Precambrian Geology (Posters)