Equilibrium form of negative crystals in igneous quartz
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概要
- 論文の詳細を見る
Morphology and internal textures of negative crystals in igneous quartz were studied by combining microscopic observation and annealing experiments of natural specimens. Judged from its symmetry and the annealing experiments, the equilibrium form of the negative crystals is estimated to be rounded bipyramidal. The rounded bipyramidal shape suggests that only rhombohedral faces are singular under the growth conditions of quartz crystals in felsic magmas. Thermal history of these crystals after the eruption of magmas was estimated by the morphology and the internal texture of the negative crystals.
- 日本鉱物科学会の論文
著者
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Asada Ryuji
Department Of Earth Sciences Faculty Of Science Kanazawa University
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Kitamura Masao
Department Of Geology And Mineralogy Faculty Of Science Kyoto University
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Kitamura Masao
Department Of Geology And Mineralogy Graduate School Of Science Kyoto University
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Shimobayashi Norimasa
Department Of Geology And Mineralogy Graduate School Of Science Kyoto University
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