GEOG 2051 Chapter : Chapter 3
Document Summary
Tension - something that is pulling apart from the center. When crust is under tension, the crust tends to thin out. Compression - outside forces are pushing toward the center. Shear - offset forces are acting in opposite directions results in horizontal bending or faulting. Each side of the anticline is known as a "limb" Dip - angle that the limb makes with respect to the horizontal surface. Strike - compass orientation that the bed of folds is trending. Plunge - when one end of an anticline or syncline is lower than the other. Faults - a joint (crack) by which movement has occurred. Hanging wall is moving down and away from the footwall. Hanging wall is moving up and toward the footwall. Hanging wall and footwall move lateral to each other. Oceanic - oceanic island arc mountain system. A series of volcanoes that emerge when two plates collide and form a subduction zone.
