14 New Research in the Appalachian-Ouachita Orogen: Integrated studies from the Foreland to the Hinterland

This session welcomes research from the Ouachita-Appalachian foreland, Blue Ridge, and Piedmont, focusing on old paradigms and new problems. Contributions across scales that utilize mapping, petrology, paleontology, geochemistry, geophysics, and/or geochronology are welcome.

Monday, 9 March 2026
1:30 PM - 5:30 PM
RCC, 104

Participants

• Chair Clinton Barineau
• Chair Ashley Lynn
• Chair Arthur Merschat
• Chair Jack C. Pashin

Presentations

• 1:35 PM
  Unraveling the Origins of "Other Terranes" in the North Carolina eastern Piedmont: Insights from new U-Pb Zircon Geochronology and Sm-Nd Isotopes
  Emma Fishel, University of North Carolina Wilmington, Wilmington, NC and Justin Futrell, University of North Carolina Wilmington, Wilmington, NC and David Blake, University of North Carolina Wilmington, Wilmington, NC and Todd LaMaskin, University of North Carolina Wilmington, Wilmington, NC and Ryan McAleer, United States Geological Survey, Reston, VA
  411750 (Technical Sessions)
• 1:55 PM
  Distribution, Geochemistry, and Petrogenesis of the Lockhart Plutonic Suite, Charlotte Terrane (SC, USA)
  Steven Mittwede, Randolph School, Huntsville, AL and I. Yasar, University of Florida, Gainesville, FL and Zachary Davis, University of Florida, Gainesville, FL and Savanna Johnson, University of Florida, Gainesville, FL and George Kamenov, University of Florida, Gainesville, FL and Jeff Chaumba, Texas Christian University, Fort Worth, TX
  411700 (Technical Sessions)
• 2:15 PM
  Cracks and Tools: The Influence of Natural Structures on Stone Tool Source Rocks in Metavolcanic Rocks of the Carolina Terrane, North Carolina
  Andy Bobyarchick, University of North Carolina at Charlotte, Charlotte, NC and Andrew Spatz, Pennsylvania Bureau of Geological Survey, Middletown, PA
  411888 (Technical Sessions)
• 2:35 PM
  Zircon Geochronology of New Intrusive Bedrock Samples from the Appalachian Piedmont of Northwest Washington, District of Columbia
  Nikita Kepezhinskas, Tetra Tech Inc., Chantilly, Virginia and George Kamenov, University of Florida, Gainesville, FL and David Foster, University of Florida, Gainesville, FL and Elizabeth Johnson, James Madison University, Harrisonburg, VA and David Iseri, Tetra Tech Inc., Chantilly, Virginia and Brendan McGuinness, Tetra Tech Inc., Chantilly, Virginia and Daniel Dunlap, Tetra Tech Inc., Chanitlly , Virginia and Ali Fahim, Tetra Tech Inc., Chantilly, Virginia
  411623 (Technical Sessions)
• 2:55 PM
  REGIONAL EXTENT OF THE BREVARD ZONE LITHOSTRATIGRAPHY AND EMPLACEMENT OF THE OVERLYING WESTERN INNER PIEDMONT ALLOCHTHON, SOUTHERN APPALACHIAN OROGEN, ALABAMA AND GEORGIA, USA
  James Tull, Florida State University, Tallahassee, Florida and Clinton Barineau, Columbus State University, Columbus, Georgia and Benjamin Davis, Tallahassee, Florida
  411529 (Technical Sessions)
• 3:30 PM
  EDIACARAN RIFT BASINS, THE GREAT UNCONFORMITY, AND PALEOZOIC TECTONIC INVERSION IN THE CENTRAL VIRGINIA BLUE RIDGE
  Mara Cox, William & Mary, Williamsburg, VA and Christopher Bailey, William & Mary, Williamsburg, VA and Kelly Thigpen, William & Mary, Williamsburg, VA
  411760 (Technical Sessions)
• 3:50 PM
  Chunky Gal Mountain Mafic Complex: A cryptic suture (?) at the Central Blue Ridge Terrane
  I. Dogancan Yasar, University of Florida, Gainesville, FL and Zachary Davis, University of Florida, Gainesville, FL and Savanna Johnson, University of Florida, Gainesville, FL and Brent Miller, Texas A&M University, College Station, TX
  411721 (Technical Sessions)
• 4:10 PM
  Intra-Backarc Subduction Initiation as a Driving Mechanism for the Southern Appalachian Taconic Orogeny
  Clinton Barineau, Columbus State University, Columbus, GA and James Tull, Florida State University, Tallahassee, FL and Christopher Holm-Denoma, United States Geological Survey, Denver, CO and Valarie Smith, Shorter University, Rome, GA
  411841 (Technical Sessions)
• 4:30 PM
  Early Mississippian emplacement of the Blue Ridge thrust sheet
  Arthur Merschat, United States Geological Survey, Marion, VA and Ryan McAleer, United States Geological Survey, Reston, VA and Jamie Levine, Appalachian State University, Boone, NC and Callia Cortese, Appalachian State University, Boone, NC and Gerald Tripp, Appalachian State University, Boone, NC
  411826 (Technical Sessions)
• 4:50 PM
  Single crystal 40Ar/39Ar ages for muscovite from the southern Appalachian and Ouachita Orogens with implications for their Carboniferous foreland basins, drainage networks and tectonic histories of their source terranes
  Willis Hames, Auburn University, Auburn, AL and Jack Pashin, Oklahoma State University, Stillwater, OK and Scott Samson, Syracuse University, Syracuse, NY and Ashraf Uddin, Auburn University, Auburn, AL
  411875 (Technical Sessions)