| Reference Type | Journal (article/letter/editorial) |
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| Title | A metallographic study of the angra dos Reis (iron) meteorite |
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| Journal | Mineralogical Magazine |
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| Authors | Axon, H. J. | Author |
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| Waine, C. V. | Author |
| Year | 1971 (March) | Volume | 38 |
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| Issue | 293 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_38/38-293-94.pdf+ |
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| DOI | doi:10.1180/minmag.1971.038.293.13Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 6438 | Long-form Identifier | mindat:1:5:6438:9 |
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| GUID | 0 |
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| Full Reference | Axon, H. J., Waine, C. V. (1971) A metallographic study of the angra dos Reis (iron) meteorite. Mineralogical Magazine, 38 (293) 94-101 doi:10.1180/minmag.1971.038.293.13 |
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| Plain Text | Axon, H. J., Waine, C. V. (1971) A metallographic study of the angra dos Reis (iron) meteorite. Mineralogical Magazine, 38 (293) 94-101 doi:10.1180/minmag.1971.038.293.13 |
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| In | (1971, March) Mineralogical Magazine Vol. 38 (293) Mineralogical Society |
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| Abstract/Notes | SummaryThe Angra dos Reis (iron) has been studied metallographically and an attempt has been made to discuss the circumstances under which the following elements of structure formed: clear etching and frosty etching kamacite, decorated Neumann lines, giant rhabdites, plate rbabdites, rhabdite clusters, microrhabdites, cohenite, and remelted troilite. The remelted troilite is taken to indicate a shock event. However, since there are no metallographically visible indications of shock in the kamacite and since the back reflection X-ray diffraction pattern shows only very faint Debye-Scherrer arcs superimposed on a pattern of sharp spots, it is concluded that the shock event took place at a temperature that allowed shock effects to anneal out of the kamacite almost completely. A submicroscopic precipitate in the metallic matrix is observable with the electron microscope and may represent the final precipitation of phosphide from shocked kamacite. |
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