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Granoblastic : ウィキペディア英語版 | Granoblastic Granoblastic is an adjective describing an anhedral phaneritic equi-granular metamorphic rock texture. Granoblastic texture is typical of quartzite, marble and other non-foliated metamorphic rocks without porphyroblasts. Characteristics defining granoblastic texture include: grains visible to the unaided eye, sutured boundaries and approximately equidimensional grains. The grain boundaries intersect at 120° triple junctions under ideal conditions. Variation from the ideal results from stress produced foliation during crystallization resulting in schistose textures. ==References==
*(Dictionary of Mining, Mineral, and Related Terms ) *(Metamorphic Microstructures )
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Granoblastic」の詳細全文を読む
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