2 Insights into Processes of Proterozoic Crustal Growth, Modification, and Stabilization in the North-Central U.S. Continental Interior

Monday, 18 May 2020
8:00 AM - 12:00 PM
French River Room 1

Presentations

• 8:05 AM
  A PALEOMAGNETIC AND STRUCTURAL STUDY OF THE PROTEROZOIC (1868 MA) GABBROIC XENOLITH, MARSHFIELD TERRANE, WISSOTA DAM, WISCONSIN
  John P. Craddock, Macalester College, St. Paul, IL and David Malone, Illinois State University, Bloomington, IL
  347918 (Theme Sessions)
• 8:25 AM
  PETROLOGIC INSIGHT INTO THE P-T HISTORY OF HIGH GRADE METAPELITES OF THE INTERNAL ZONE OF THE PENOKEAN-YAVAPAI OROGENIC BELT, NORTHERN WISCONSIN
  Benjamin Hallett, University of Wisconsin Oshkosh, Oshkosh, WI
  348342 (Theme Sessions)
• 8:45 AM
  AGE AND SIGNIFICANCE OF DEFORMED POST-PENOKEAN MAFIC DIKES FOR GROWTH AND OVERPRINTING OF PROTEROZOIC PROVINCES IN CENTRAL WISCONSIN, SOUTHERN LAKE SUPERIOR REGION
  Daniel Holm, Kent State University, Kent, OH and L.Gordon Medaris, University of Wisconsin-Madison, Madison, WI and Kalin McDannell, Geological Survey of Canada, Calgary, AB and David A. Schneider, University of Ottawa, Ottawa, ON and Klaus J. Schulz, Reston, VA and Brad Singer, University of Wisconsin-Madison, Madison, WI and Brian Jicha, University of Wisconsin-Madison, Madison, WI
  346636 (Theme Sessions)
• 9:05 AM
  GEON 14 MAGMATISM, DEFORMATION, AND METASOMATISM IN THE SOUTHERN LAKE SUPERIOR REGION: DEFINING THE BARABOO OROGENY
  Levi Medaris, University of Wisconsin-Madison, Madison, WI and Bradley S. Singer, University of Wisconsin-Madison, Madison, WI and Brian Jicha, University of Wisconsin-Madison, Madison, WI and David H. Malone, Illinois State University, Normal, IL and Joshua Schwartz, California State University Northridge, Northridge, CA
  347005 (Theme Sessions)
• 9:25 AM
  RECONNAISSANCE PALEOMAGNETIC STUDY OF THE ~1450 MA WOLF RIVER BATHOLITH, WISCONSIN
  Erica Powers Craddock, Lawrence University, Appleton, WI and David Malone, Illinois State University, Bloomington, IL and John P. Craddock, Macalester College, St. Paul, IL
  347920 (Theme Sessions)
• 10:00 AM
  NEOPROTEROZOIC SEDIMENTATION IN THE LAURENTIAN MIDCONTINENT: DETRITAL ZIRCON PROVENANCE OF THE JACOBSVILLE SANDSTONE, LAKE SUPERIOR BASIN, USA AND CANADA
  David H. Malone, Illinois State University, Normal, IL and Carol Stein, University of Illinois at Chicago, Chicago, IL and John P. Craddock, Macalester College, St. Paul, IL and Seth Stein, Northwestern University, Evanston, IL
  348348 (Theme Sessions)
• 10:20 AM
  40AR/39AR K-FELDSPAR THERMOCHRONOLOGY RESULTS FROM THE SOUTHERN LAKE SUPERIOR REGION: REHEATING AND STABILIZATION OF PROTEROZOIC LITHOSPHERE RELATED TO LATE PROTEROZOIC MAGMATIC UNDERPLATING
  Kalin McDannell, Geological Survey of Canada, Calgary, AB and Daniel Holm, Kent State University, Kent, OH and David A. Schneider, University of Ottawa, Ottawa, ON and Levi Medaris, University of Wisconsin-Madison, Madison, WI and Klaus J. Schulz, Reston, VA and Brad Singer, University of Wisconsin-Madison, Madison, WI and Brian Jicha, University of Wisconsin-Madison, Madison, WI
  347712 (Theme Sessions)
• 10:40 AM
  PALEOPROTEROZOIC-CAMBRIAN TECTONIC EVOLUTION OF CENTRAL LAURENTIA: EVIDENCE FROM DETRITAL ZIRCON GEOCHRONOLOGY OF BASAL CAMBRIAN STRATA IN THE DEEP ILLINOIS BASIN, USA
  David Malone, Illinois State University, Bloomington, IL and Jared Freiburg, Prairie Research Institute, Champaign, IL and Mark E. Holland, West Texas A&M University, Canyon, AK and Shawn Malone, Ball State University, Muncie, IN
  347937 (Theme Sessions)