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Table 1 Sample list with the degree of atmospheric entry heating, apparent sizes, and mineralogical features

From: Mineralogy and noble gas isotopes of micrometeorites collected from Antarctic snow

Sample ID Degree of atmospheric entry Apparent size (μm) Petrographic characteristics Identified minerals
SR-XRD Micro-Raman
D03IB067 Least heated 43 Polycrystalline (anhydrous) Ol, LPx, Kam, Po, Mt Ol
D03IB068 Least heated 45 Polycrystalline (hydrous) Ol, Mt, Sap, Serp Ol
D10IB020 Moderately heated 50 Chondrule-like Ol, HPx Ol, HPx
D10IB049 Moderately heated 43 Coarse-grained Ol, LPx, Po, Mt Ol, Low-Ca cpx
D10IB130 Moderately heated 60 Coarse-grained Ol Ol
D03IB057 Severely heated 33 Chondrule-like Ol, LPx, Kam, Po, Pl, Mt Low-Ca cpx, Ol, Chr
D10IB170 Severely heated 50 Coarse-grained Ol, Mt Ol, Mt
  1. Degrees of atmospheric entry heating were inferred from the release patterns of solar wind 4He
  2. Ol olivine, LPx low-Ca pyroxene, Kam kamacite, Po pyrrhotite, Mt magnetite, Sap saponite, Serp serpentine, HPx high-Ca pyroxene, Pl plagioclase, low-Ca cpx low-Ca clinopyroxene, Chr chromite