CaltechAUTHORS
  A Caltech Library Service

s-Process Xe and Kr and Ne-E in a ^(13)C Rich Murchison Sample; Noble Gas Analysis by Stepped Combustion

Ott, U. and Yang, J. and Epstein, S. (1985) s-Process Xe and Kr and Ne-E in a ^(13)C Rich Murchison Sample; Noble Gas Analysis by Stepped Combustion. Meteoritics, 20 . p. 722. ISSN 0026-1114 . https://resolver.caltech.edu/CaltechAUTHORS:20140909-094523110

[img]
Preview
PDF - Published Version
See Usage Policy.

59Kb

Use this Persistent URL to link to this item: https://resolver.caltech.edu/CaltechAUTHORS:20140909-094523110

Abstract

Some of the more interesting isotopic anomalies in meteorites are located in minor phases that are extremely resistant to chemical treatments. Among these are Ne-E (Black and Pepin, 1969; Eberhardt, 1978; Alaerts et al., 1980) and s-process Kr and Xe (Srinivasan and Anders, 1978; Alaerts et al., 1980), which have been detected in samples that at the same time contain a carbon component enriched in ^(13)C by about a factor of two (Swart et al., 1983). Swart et al. (1983) have concluded that s-Xe and Ne-E (L)- that subcomponent of Ne-E that is released at low temperature in pyrolysis (Eberhardt, 1978)- are related to isotopically heavy carbon. Their argument involved a comparison of stability in pyrolysis (for noble gas retention) and combustion (carbon). Since it is preferrable to compare stability under identical conditions, we have analyzed for its noble gases by stepped combustion Murchison sample CFP. This sample had been prepared using HF/HC1 and HC10_4 and analyzed for carbon by Yang and Epstein (1984), who found a δ^(13)C of + 977‰ in the highest temperature step. We followed their schedule except for an intermediate combustion step at 1000°C.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://adsabs.harvard.edu//abs/1985Metic..20..722OADSArticle
Additional Information:© 1985 Meteoritical Society. Provided by the NASA Astrophysics Data System.
Record Number:CaltechAUTHORS:20140909-094523110
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140909-094523110
Official Citation:s-Process Xe and Kr and Ne-E in a 13C Rich Murchison Sample; Noble Gas Analysis by Stepped Combustion Ott, U.; Yang, J.; Epstein, S. Publication: Meteoritics, Vol. 20, p.722 Publication Date: 12/1985
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49488
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:09 Sep 2014 17:18
Last Modified:03 Oct 2019 07:14

Repository Staff Only: item control page