Automated NanoSIMS Measurements of Spinel Stardust from the Murray Meteorite

Frank Gyngard, Ernst Zinner, Larry R. Nittler +3

We report new O isotopic data on 41 presolar oxide grains, 38 MgAl2O4 (spinel) and 3 Al2O3 from the CM2 meteorite Murray, identified with a recently developed automated measurement…