Davidson, J.; Busemann, H.; Franchi, I. A. and Grady, M. M.
(2010).
| URL: | http://www.lpi.usra.edu/meetings/lpsc2010/ |
|---|---|
| Google Scholar: | Look up in Google Scholar |
Abstract
Presolar grains are particularly abundant in primitive extraterrestrial materials such as IDPs [e.g. 1-3] and the matrices of the least altered chondrites [4-6]. To date, the presolar silicate and oxide inventories of the primitive chondrites Acfer 094 [4-7] and ALHA 77307 [7] have been reported extensively. More recently, the search for presolar silicates and oxides has been extended to the CR [8,9] and ungrouped chondrites [10].
Here we report the presolar grain inventories (silicates, oxides, SiC, and other C-anomalous phases) determined for Adelaide and RBT 04133 by Nano-SIMS raster ion imaging. Adelaide (an ungrouped C3)was chosen for this study because (i) it is primitive and (ii) it was previously reported to have a low presolar silicate abundance of ~41 ppm [11] in comparison to Acfer 094 and ALHA 77307; 90-175 [7,12] and 95
ppm respectively [7]. RBT 04133 (a mildly thermally altered CV3) was also analysed as part of an ongoing study [13].
| Item Type: | Conference Item |
|---|---|
| Copyright Holders: | The Authors |
| Academic Unit/Department: | ?? scie-pssr ?? Science > Physical Sciences |
| Interdisciplinary Research Centre: | Centre for Earth, Planetary, Space and Astronomical Research (CEPSAR) |
| Related URLs: | |
| Item ID: | 33604 |
| Depositing User: | Patricia Taylor |
| Date Deposited: | 17 May 2012 12:21 |
| Last Modified: | 16 Nov 2012 14:06 |
| URI: | http://oro.open.ac.uk/id/eprint/33604 |
Actions (login may be required)
| View Item | |
| Public: Report issue / request change |