Cliftonite in meteorites: A proposed origin
Science
By: R. Brett and G.T. Higgins
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Abstract
Cliftonite, a polycrystalline aggregate of graphite with cubic morphology, is known in ten meteorites. Some workers have considered it to be a pseudomorph after diamond, and have used the proposed diamond ancestry as evidence of a meteoritic parent body of at least lunar dimensions. We have synthesized cliftonite in Fe-Ni-C alloys in vacuum, as a product of decomposition of cohenite [(Fe,Ni)3C]. We therefore suggest that a high pressure origin is unnecessary for meteorites which contain cliftonite, and that these meteorites were formed at low pressures. This conclusion is in agreement with other recent evidence.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Cliftonite in meteorites: A proposed origin |
| Series title | Science |
| Volume | 156 |
| Issue | 3776 |
| Year Published | 1967 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Science |
| First page | 819 |
| Last page | 820 |
| Google Analytic Metrics | Metrics page |