¹Kevin Righter,²John Schutt,¹Nicole Lunning,²Ralph Harvey,³James Karner
Meteoritics & Planetary Science (in Press) Link to Article [https://doi.org/10.1111/maps.13707]
¹ARES, Mailcode XI2, NASA-JSC, Houston, Texas, 77058 USA
²Department of Earth, Environmental, and Planetary Science, Case Western Reserve University, 10900 Euclid Ave, Cleveland, Ohio, 44106 USA
³Department of Geology and Geophysics, University of Utah, Salt Lake City, Utah, 84113 USA
Published by arrangement with John Wiley & Sons

New analyses of Cr2O3 contents of olivines from type II chondrules in unequilibrated chondrites (UOC) from four dense collections are reported here. This survey of petrologic type 3 UOCs was undertaken to identify primitive chondrites that may have been overlooked, and to address possible pairing errors. We have identified 23 primitive UOCs (≤3.10) (only five identified previously, for a total of 28 overall), and also recommend other revisions to prior classifications and pairings.