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KMZ File:2e

Question 30

When rock in all directions away from a central area (like the of a baseball cap), the fold is referred to as a dome. Conversely, when rock layers plunge in all directions toward a central area (like a basin in which you might wash your hands), the fold is called a basin. Domes and basins are more equidim ensional than anticlines and synclines, respectively (that is, doubly-plunging anticlines and synclines have a long fold hinge between their plunging ends). In addition, most cross sections through a dome will look like anticlines, and most cross sections through a basin will look like synclines.

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