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striation |
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striation 1. an arrangement or pattern of striae 2. another word for stria (sense 1) striation [strī′ā·shən] (electronics) A succession of alternately luminous and dark regions sometimes observed in the positive column of a glow-discharge tube near the anode. (geology) One of a series of parallel or subparallel scratches, small furrows, or lines on the surface of a rock or rock fragment; usually inscribed by rock fragments embedded at the base of a moving glacier. (mineralogy) One of a series of parallel, shallow depressions or narrow bands on the cleavage face of a mineral caused either by growth twinning or oscillatory growth of different crystal faces. 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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| Here, the motif painted on each shard is a stylized image of a feather's striations, compressed or expanded depending on the size of the piece, and the slightly curving chevron patterns created generate the optical illusion of an uneven surface. Some hikers might tell you that the primary motivation for a rim-to-rim hike is to peruse the colorful rock striations up close, spot wildlife and bask in the magnificence of the Colorado River gorge. Striations on the bullet are caused by its passage through the gun barrel. |
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