Nitrogen Speciation in a 15N-enriched Interplanetary Dust Particle
Abstract
Large N-15 excesses have been measured in individual interplanetary dust particles (IDPs); TEM, in combination with spectroscopic measurements of the same IDPs, shows N concentrations within the carbonaceous material, and much of this is in organic form. The isotopic signature suggests that formation of this N-bearing carbonaceous material was in a cold, presolar molecular cloud, and it is surmised that the solid material grain embedded in the N-15-rich carbonaceous matter could be of presolar origin.
- Publication:
-
Lunar and Planetary Science Conference
- Pub Date:
- March 1997
- Bibcode:
- 1997LPI....28..707K
- Keywords:
-
- Nitrogen;
- Interplanetary Dust;
- Mineralogy;
- Petrography;
- Electron Spectroscopy;
- Carbonaceous Chondrites;
- Astrophysics;
- INFRARED SPECTROSCOPY;
- NITROGEN;
- (TEM)