![]() ![]() ![]() The town of Bay Ocean literally eroded into the sea because of a jetty put in the wrong place. The sediment of the beaches is constantly in motion creating spits and bay barriers. The southern Oregon coast is made up on the Klamath Mountains which are parts of continents just stuck onto Oregon. The origin of the rocks of the coasts is interesting from the headlands of the north coming from basalt flows that have flowed across the state to uplifted sea floor! This “subduction” causes dynamic geology of large earthquakes and tsunamis about every 500 years. The Oregon coast lies at a plate boundary where the Juan de Fuca Plate is crashing under the North American plate. With Scott Burns, PhD, Professor of Geology at Portland State University | Virtual Edition | 6:30-8:30PM | $5 suggested donation ( Dynamic Geology of the Oregon Coast
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