Earth, Moon, and Planets

, Volume 115, Issue 1–4, pp 101–114 | Cite as

Ca-, Al-Rich Inclusions in Two New Carbonaceous Chondrites from Grove Mountains, Antarctica

  • D. Dai
  • C. Zhou
  • X. Chen


Two new carbonaceous chondrites, GRV 023155 and GRV 050179, collected from the Grove Mountains (GRV), Antarctica, have been classified as the oxidized CV3 and CM2 chondrites, respectively.  A total of 9 Ca-, Al-rich inclusions (CAIs) were found in the two meteorites. Most of the inclusions are extensively altered, with phyllosilicates commonly found in the alteration assemblages of CAIs, chondrules and matrix in the GRV 050179 CM2 chondrites, suggesting that aqueous alteration occurred on the host meteorite parent body. In contrast, feldspathoids and hedenbergite were identified in the CAIs from GRV 023155. The FeO-rich phases in the CAIs from GRV 023155 indicate alteration of these CAIs happened under high oxygen fugacity. All 9 inclusions can be classified as Type A or spinel-pyroxene rich inclusions, and they probably represent a continuum of solar nebular condensation. The survey of Ca-, Al-rich inclusions in GRV 023155 (CV3) and 050179 (CM2) suggests that Type A and spinel-pyroxene inclusions are common in these two meteorites.


Antarctica Carbonaceous chondrite Ca-, Al-rich inclusion CAI Nebula 



The authors are very grateful to two anonymous reviewers for their constructive reviews. We thank Dr. Murthy Gudipati and Sasha for critically reading and thoroughly editing the manuscript. The samples were supplied by the China Polar Research Center. This work was supported by the Natural Science Foundation of China (Grant Nos. 41103032, 41372209).


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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  1. 1.Institute of GeologyHunan University of Science and TechnologyXiangtanChina
  2. 2.Institute of GeochemistryChinese Academy of SciencesGuiyangChina
  3. 3.Hunan Provincial Key Laboratory of Shale Gas Resource UtilizationXiangtanChina

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