mountainbuilding - Physical Geology 101 25 Mountain Ranges...

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Physical Geology 101 1 25. Mountain Ranges and the Construction of Continents p. 379-397 Mountain Building Although the Earth is 4.6 billion years old, we see that many mountain ranges on Earth are far younger, having formed within the last _______________________ years. These young mountain ranges typically occur near to active plate tectonic boundaries, particularly _________________________ (i.e., at ________________________). What is the collective term used to describe all the processes responsible for the creation of mountains? ___________________. When this happens, a region is said to have undergone an ________________. Because of the great forces associated with tectonic plates colliding, one of the most important factors in orogenesis is __________________________. This stress causes mountain ranges to be extremely internally deformed, meaning the rocks are intensely _______________ and _______________. Subduction zones are also commonly associated with volcanoes, so many mountain ranges also have a core of ______________________. The mountains themselves are often constructed out of the products of volcanic eruptions, such as _____________. As a result of the large amount of deformation of the mountains, the deep roots of the mountains typically contain a lot of ______________________. What are some examples of young and active mountain ranges along convergent plate boundaries? (1) ____________________ (includes the __________ and ________________) (2) ____________________ (3) Also the island nations of Japan, Phillipines, and Indonesia. What are two examples of ancient mountain ranges that indicate the locations of ancient convergent plate boundaries? (1) ____________________ (2) ____________________ Subduction Zones The two types of convergent plate boundaries where subduction actively occurs are: ______________________ and _______________________ What are the four typical component parts of any subduction zone? (1) _________________ (where the subduction begins) (2) _________________ (the region between the trench and the volcanoes) (3) _________________ (the line of volcanoes)
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Physical Geology 101 2 (4) _________________ (the side of the volcanic arc opposite the trench) Where an ocean plate subducts beneath an ocean plate, the line of volcanoes on the upper plate is called an _________________ (e.g., _________________). Where subduction occurs beneath a continental plate, the line of volcanoes on the continent is just called a ______________.(e.g., SW Alaska; _______________; _____________). This type of plate boundary is often called an __________________________________. Andean-type Margins
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mountainbuilding - Physical Geology 101 25 Mountain Ranges...

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