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We report the results of SIMS isotopic analyses of carbon, nitrogen, oxygen, and silicon made on 849 small (approximately 1 micrometer) individual silicon carbide grains from the Murchison meteorite. The isotopic compositions of the major elements carbon and silicon of most grains (mainstream) are similar to those observed in larger grain studies suggesting(More)
available online at 3-D elemental and isotopic composition of presolar silicon carbides Torsten HENKEL1†*, Thomas STEPHAN1, Elmar K. JESSBERGER1, Peter HOPPE2, Roger STREBEL2, 3, Sachiko AMARI4, and Roy S. LEWIS5 1Institut für Planetologie/ICEM, Wilhelm-Klemm-Strasse 10, 48149 Münster, Germany 2Max-Planck-Institut für Chemie, Postfach(More)
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