Tectonic Setting of the Cascade Arc
Item
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Title
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Tectonic Setting of the Cascade Arc
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Description
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The Cascade Arc formed as a result of the subduction of the Juan de Fuca Plate System Beneath the North American Plate. This system is made up of the Juan de Fuca microplate as well as the smaller Gorda and Explorer plates. All three of these plates are remnants of the ancient Farallon Plate. The Cascades began to form 36 million years ago, however, the volcanoes that we see today have only begun to form over the past 1-2 million years.
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Subject
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Petrology 2015 Final Project: Convergent Margin
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Creator
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Devon Gorbey
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Source
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USGS
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Mediator
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Tamara Carley
