Note Details

Category: Analysis

[ALS]: Ca in the aerogel. XRF spectra were obtained for terminal particles. Generally chondritic, but Ni/Fe varies from low to extremely low compared to CI. The two largest terminal particles, 6.6 and 5, both show sulfur -- suggesting heating did not severely remobilize S in these ~10 to ~20 μm particles. The terminal particles are generally Fe3+ rich. Particles closer to the entry point in Track 22, the longest track and the only one with large particles along the middle of the length, are Fe2+ rich. A few weak diffraction spots indicate some crystalline material is present in several particles.