10:30 AM - 10:45 AM
[R5-05] An Antarctic micrometeorirte as a microbreccia of CP IDP and CS IDP-like material
Keywords:CP IDP, CS IDP, AMM
We report on an Antarctic micrometeorite (AMM) with lithologies comparable to the CP and CS IDPs (hereafter porous and compact lithologies). Both lithologies contact with sharp boundaries. The SFT number density of olivine is in the range of IDPs from trans-Neptunian objects. The similarity of the structure of the organic matter in them suggests that the compact lithology was formed from porous lithology. The AMM is most likely a microbreccia formed in the regolith composed of both lithologies.