mountain building chapter 20. isostatic rebound – crust rises as a result of __________________...
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Isostatic Rebound – crust rises as a result of __________________
This iceberg demonstrates the process of isostatic rebound.
removal of mass
Folded rock layers produced by compressional forces. This part of the folded mountain shows a __________.syncline
Convergent-Boundary Mountains
The following three slides show mountain types produced when plates move __________.together
Ocean-Ocean Convergence
Examples: Aleutian Islands, Phillipines,______
Basaltic magma
trench
Volcanic island arc
Japan
Ocean-Continental Convergence
Examples: ________, Andes
Andesitic magma, granitic intrusions
volcanic mountains
trench
metamorphic rock
Cascades
Continental-Continental Convergence
Examples: Himalayas,______________
faults
folded mountains
igneous intrusions
metamorphic and sedimentary rock
Appalachians
Nonconvergent-Boundary Mountains
The next four slides show mountains formed at divergent boundaries (plates moving _____), hot spots, and areas of faulting or uplift.
apart
Uplifted Mountains
Example: ____________
intrusive igneous rock, less structural deformation
Adirondacks
Mountain Building Review
The Galapagos Islands formed as a result of a ___________.
The Appalachians are about _________ years old.
The Appalachians are a __________ mountain range.
The Cascades (Mt St Helens, Mt Rainier,…) are a ___________ mountain range with ___________ eruptions.
hot spot600-700 million
folded
volcanicexplosive