How Are Mountains Related to Plate Tectonics?
ES1101  Ancient Mountain Belts

The Andes and Himalayas are actively growing mountain belts located near convergent plate boundaries. The Appalachian Mountains of North America, the Atlas Mountains of northwestern Africa, and the Scottish Highlands of Europe are not actively growing. However, all three of these areas have geologic structures that show they were exposed to mountain-building processes at about the same time. No convergent plate boundary exists near these widely separated mountains.

  !   Examine the location of the three inactive mountain belts. Consider the current plate tectonic setting of the Atlantic Ocean.

Jennifer Loomis, TERC

9. Hypothesize about why these mountain belts of the same age are separated by the Atlantic Ocean. Consider how you could test your hypothesis.

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