Graphite in an Apollo 17 impact melt breccia.
Science
; 329(5987): 51, 2010 Jul 02.
Article
em En
| MEDLINE
| ID: mdl-20595608
ABSTRACT
We report on the detection of discrete grains of crystalline graphite and graphite whiskers (GWs) in an Apollo 17 impact melt breccia. Multiple instances of graphite and GWs within a discrete area of the sample imply that these grains are not terrestrial contamination. Both graphite and GWs are indicative of high-temperature conditions and are probably the result of the impact processes responsible for breccia formation. This suggests that impact processes may be an additional formation mechanism for GWs in the solar system and indicates that the Moon contains a record of ancient carbonaceous material delivered at the time of the Late Heavy Bombardment.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Lua
/
Grafite
Idioma:
En
Revista:
Science
Ano de publicação:
2010
Tipo de documento:
Article