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PCS Earth Science
Chapter 20 Vocabulary - Mountain Building
Term | Definition |
---|---|
fault-block mountain | mountains that form when large pieces of crust are tilted, uplifted, or dropped downward between large normal faults |
isostasy | condition of equilibrium that describes the displacement of Earth's mantle by Earth's continental and oceanic crust |
isostatic | slow process of Earth's crust rising as the result of the removal of mass from the crust |
orogeny | cycle of processes that form all mountain ranges, resulting in broad mountain belts, most of which are associated with plate boundaries |
pillow basalt | igneous rock formed when magma pushes through dikes and erupts onto the seafloor |
uplifted mountain | mountains that form when large regions of Earth are forced slowly upward without much deformation |