Tectonic Setting of the Cascade Arc

Item

Title
Tectonic Setting of the Cascade Arc
Description
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.
Subject
Petrology 2015 Final Project: Convergent Margin
Creator
Devon Gorbey
Source
USGS
Mediator
Tamara Carley

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