Characterization of the noble gases and CRE age of the D'Orbigny angrite

Eugster, O.; Busemann, H.; Kurat, G.; Lorenzetti, S. and Varela, M. E. (2002). Characterization of the noble gases and CRE age of the D'Orbigny angrite. In: 65th Annual Meeting of the Meteoritical Society, 21-26 Jul 2002, Los Angeles, California, USA.

URL: http://www.lpi.usra.edu/meetings/metsoc2002/pdf/50...

Abstract

Introduction: The D’Orbigny angrite, a 16.55 kg stone, was found 1979 in Argentina [1]. Mineralogy and chemistry of this meteorite were characterized in detail [2-6]. A Pb-U-Th age of 4.559 Ga was obtained for pyroxenes by Jagoutz et al. [7]. Here we report results on the noble gas isotopic composition and, in particular, on the cosmic-ray exposure (CRE) age of D’Orbigny.

Viewing alternatives

Item Actions

Export

You can export this page using these formats