Successive flexures or ridges are ranged in more or less parallel lines, and from between the bands of hard, unyielding rock of older formation the soft beds of recent shale have been washed out, to he carried through the enclosing ridges by rifts which break across their axes. [Please select]
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In very large specimens there are five flexures in the horn, but generally four. [Please select]
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Occasionally several lateral flexures of double curvature and of great amount were exhibited. [Please select]
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Some of these flexures attain a length of over 80 miles and a displacement of 3,000 feet, and the faults reach even a greater magnitude. [Please select]
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