Odum Library
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| dc.contributor.author | Hester, Cameron G. | |
| dc.date.accessioned | 2020-04-20T03:00:47Z | |
| dc.date.available | 2020-04-20T03:00:47Z | |
| dc.date.issued | 2020 | |
| dc.identifier.uri | https://hdl.handle.net/10428/4180 | |
| dc.description.abstract | An iron octahedrite was analyzed through observations of its physical and chemical properties in order to understand and classify those characteristics common to iron meteorites. The total weight of the meteorite was 406.37 grams. It exhibits a high degree of magnetism, high specific gravity, and nickel content of at least 1.0 x 10^-3%. The meteorite’s surface is stained with iron oxide and covered in regmaglypts resulting from ablation during its fall through the Earth’s atmosphere. A portion of the sample weighing 20.79 grams was removed in order to produce an etched, polished thin section for petrographic analysis. The area from which the thin section was cut has been highly polished and prepared to be etched with an acid solution in order to reveal a Widmanstätten pattern on the meteorite. A Widmansttten pattern visually represents the octahedral structure in the metal formed by laminae of kamacite and taenite. Utilizing reflected light microscopy, the average kamacite band width is measured and used to further classify the octahedrite in the range of “coarsest” to “finest”, as well as estimate its cooling rate. The purpose of this study is to become familiar with the process of investigating and documenting an iron meteorite’s qualities. | en_US |
| dc.language.iso | en_US | en_US |
| dc.title | Properties of an Iron Octahedrite Meteorite collected at Odessa Meteorite Crater, Odessa, TX | en_US |
| dc.type | Presentation | en_US |
