Convergent Margin Comparison - Tectonic Setting
Kojaian, Isihara and Sanders
Item
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Title
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Convergent Margin Comparison - Tectonic Setting
Kojaian, Isihara and Sanders
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Description
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The Solomon Islands, the Andean Arc and the Trans-Mexican Volcanic Belt are all similar in the sense that they are all subduction related arcs. The Andean Arc and the Trans-Mexican Volcanic Belt are both continental arcs. This means that they were formed by an oceanic plate subducting under a continental plate. In this case, the volcanic arc is created on top of the continent. Alternatively, the Solomon Islands were created by an island arc. This means that oceanic crust (the Solomon Sea Plate, Woodlark Plate and the Australian Plate) are subducting underneath other ocean crust (the Pacific Plate). This happens because the subducting plates are older, colder and more dense than the overriding plates.
Picture from
Winter, J. D. (n.d.). Igneous and Metamorphic Petrology Class Material.
Retrieved May 6, 2015, from https://www.whitman.edu/geology/winter/
JDW_PetClass.htm
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Creator
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Claire Kojaian
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Mediator
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Tamara Carley
carleyt@lafayette.edu
