| タイトル | Phenocryst fabric in lunar basalt sample 12052 from the Ocean of Storms. |
| 著者（英） | Greenwood, W. R.; Clark, A. L.; Morrison, D. A. |
| 発行日 | 1972-09-01 |
| 言語 | eng |
| 内容記述 | Pyroxene phenocrysts in Apollo 12 sample 12052, a porphyritic basalt, have a weak, planar preferred orientation and a lineation as determined by crystal-elongation measurements and universal-stage measurements in orthogonal thin sections. The structures are probably the result of laminar flow. Numerous vugs and the flow foliation in sample 12052 suggest crystallization as a surface flow or a near-surface sill. Flowage appears to have ceased by the time of crystallization of the variolitic groundmass of the sample. The fabric data suggest a two-stage crystallization of sample 12052. |
| NASA分類 | SPACE SCIENCES |
| レポートNO | 72A41115 |
| 権利 | Copyright |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/460949 |
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