Identification and pairing reassessment of unequilibrated ordinary chondrites from four Antarctic dense collection areas
Abstract New analyses of Cr 2 O 3 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 possibl...
Published in: | Meteoritics & Planetary Science |
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Main Authors: | , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2021
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Subjects: | |
Online Access: | http://dx.doi.org/10.1111/maps.13707 https://onlinelibrary.wiley.com/doi/pdf/10.1111/maps.13707 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/maps.13707 https://onlinelibrary.wiley.com/doi/am-pdf/10.1111/maps.13707 |
Summary: | Abstract New analyses of Cr 2 O 3 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. |
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