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phyllite |
Also found in: Dictionary/thesaurus, Wikipedia, Hutchinson | 0.02 sec. |
phylliteFine-grained metamorphic rock formed by the recrystallization of fine-grained, parent sedimentary rocks, such as mudstones or shales. Phyllite has a marked tendency to split into sheets or slabs; it may have a sheen on its surfaces due to tiny plates of micas. Its grain size is larger than that of slate but smaller than that of schist. phyllite [′fi‚līt] (petrology) A metamorphic rock intermediate in grade between slate and schist, and derived from argillaceous sediments; has a silky sheen on the cleavage surface. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The Central Quartzite Unit is approximately 700-m thick and consists primarily of bedded and massive quartzite and lesser thin schist and phyllite layers. Geochemical soil anomalies are clustered along the northern contact of the quartzmonzonite intrusion with Rabbitkettle Formation calcareous phyllite. The Fire Lake Formation, composed mainly of chloritic phyllite of mafic metavolcanic composition (Murphy et al. |
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