Arc Versus River—The Geology of the Columbia River Gorge

Document Type

Citation

Publication Date

9-24-2021

Abstract

The Columbia River Gorge is the Columbia River’s long-held yet evolving passage through the volcanic arc of the Cascade Range. The globally unique setting of a continental-scale river bisecting an active volcanic arc at the leading edge of a major plate boundary creates a remarkable setting where dynamic volcanic and tectonic processes interact with diverse and energetic fluvial processes. This three-day field trip explores several elements of the gorge and its remarkable geologic history—cast here as a contest between regional tectonic and volcanic processes building and displacing landscapes, and the relentless power of the Columbia River striving to maintain a smooth passage to the sea.

Rights

© 2021 The Geological Society of America.

DOI

https://doi.org/10.1130/FLD062

Persistent Identifier

https://archives.pdx.edu/ds/psu/41053

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