Helium isotopic ratios in carbonaceous chondrites: Significant for the early solar nebula and circumstellar diamonds?

Busemann, H.; Baur, H. and Wieler, R. (2001). Helium isotopic ratios in carbonaceous chondrites: Significant for the early solar nebula and circumstellar diamonds? In: 32nd Lunar and Planetary Science Conference, 12-16 March 2001, Houston, Texas, USA.

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Abstract

Stepwise etching of acid-resistant residues from carbonaceous chondrites yields a new, extraordinarily low He isotopic ratio for phase Q that might represent early solar nebula composition. A much lower ratio possibly characterizes He-P3 from circumstellar diamonds.

Item Type:	Conference Item
Extra Information:	Abstract #1598
Keywords:	carbonaceous chondrites;
Academic Unit/Department:	Science > Physical Sciences
Item ID:	8341
Depositing User:	Kyra Proctor
Date Deposited:	05 Jul 2007
Last Modified:	08 Dec 2010 02:36
URI:	http://oro.open.ac.uk/id/eprint/8341

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