STRUCTURAL LANDSCAPES - STRUCTURAL LANDSCAPES * the...

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STRUCTURAL LANDSCAPES ** the relationship between geologic structure & the visible ** formed by tectonic forces or stresses: compression, tension, & shearing ** these stresses create various features: faults, folds, fractures, and warping ** the process that bends or warps, deforms rock strata when subjected to compressional forces ** best seen in sedimentary rock ** to describe the nature and orientation of these structures, and rock layers we use the terms, strike and dip * strike: the compass direction of the line of intersection EX: N45° E = a strike with an orientation roughly running NE to SW, or 45° between compass north and east * dip: the angle at which the rock layer tilts from the horizontal (surface)
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EX: a layer with a dip of 90° would be vertically straight up and down ** the dip and strike are always at right angles to each other
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STRUCTURAL LANDSCAPES - STRUCTURAL LANDSCAPES * the...

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