| タイトル | Intergrown mica and montmorillonite in the Allende carbonaceous chondrite |
| 著者（英） | Tomeoka, K.; Buseck, P. R. |
| 著者所属（英） | Arizona State Univ. |
| 発行日 | 1982-09-23 |
| 言語 | eng |
| 内容記述 | High resolution transmission electron microscopy (HRTEM) observations were made of a mixture of mica and montmorillonite from fine-grained calcium, aluminum inclusions (CAI) in the Allende C3(V) meteorite. A petrographic thin section having a diameter of 4 mm contained CAI fragments ranging from less than 1 to 50 microns. The observed textural and chemical characteristics placed the inclusion in the fine-grained alkali-rich spinel aggregate category of Warks' (1979) classifications of CAIs and as type 3 in Kornacki's classifications of fine grains in Allende. Chemical analyses were performed on the phyllosilicate grains observed in the TEM scan by means of an X ray observed, and the proximity to the matrix boundary suggests a metamorphism which included aqueous alteration at a relatively low temperature. |
| NASA分類 | LUNAR AND PLANETARY EXPLORATION |
| レポートNO | 82A45589 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/408868 |
