Extensive microscale N isotopic heterogeneity in chondritic organic matter

Nittler, L. R.; Hoppe, P.; Alexander, C. M. O'D.; Busemann, H. and Cody, G. (2005). Extensive microscale N isotopic heterogeneity in chondritic organic matter. In: 68th Annual Meeting of the Meteoritical Society, 12-16 Sep 2005, Gatlinburg, Tennessee, USA.

URL: http://www.lpi.usra.edu/meetings/metsoc2005/pdf/52...

Abstract

Introduction: H and N isotopic anomalies (mainly excesses of D and 15N) in organic matter from primitive meteorites and IDPs suggest preservation of presolar molecular cloud material [1-3]. However, there have been very few spatially correlated H and N studies for either chondrites or IDPs [4, 5]. We report C and N isotopic imaging data for organic matter from four meteorites and three IDPs. D/H imaging data for many of the same samples are presented in [6, 7] and bulk organic isotope data in [8].

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