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Activity

2020

• U-PB BADDELEYITE AGE LINKS THE OSBORNE ANOMALY (NE IOWA) TO THE EARLY (1,150 MA) PHASE OF MIDCONTINENT RIFT ACTIVITY
  19 Intrusive Rocks of the Midcontinent Rift
  Monday, 18 May 2020

  1:30 PM - 5:30 PM

  French River Room 1

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2019

• GEOCHEMISTRY AND PETROGRAPHY OF THE OSBORNE CORE (NORTHEAST IOWA INTRUSIVE COMPLEX)
  198 D25. Recent Advances in Petrology, Igneous (Posters)
  Tuesday, 24 September 2019

  9:00 AM - 6:30 PM

  Hall AB, North Building
• PETROLOGY & GEOCHEMISTRY OF THE OSBORNE MAFIC INTRUSION, NW IOWA
  43 Mafic and Ultramafic Magmatism in the Mid-Continent and Beyond (Posters)
  Wednesday, 27 March 2019

  8:30 AM - 11:45 AM

  Big Basin/Kaw Nation Rooms