Area of Study
Science and Mathematics
The Basalt of Summit Creek is an enigmatic basalt unit that is about 55 million years (Ma) in age, located south of Mount Rainier. These basalts formed in a transitional time between the formation of the Coastal Range Basalts and the present Cascade arc. Through geochemical and paleomagnetic techniques, samples were collected and analyzed. Paleomagnetic samples showed nearly complete post eruptive demagnetization. Geochemical samples show arc type rocks lower in section and ocean island basalts in upper sites.
McKinley, Elli, "Paleomagnetic and geochemical analysis of the Summit Creek volcanics, South-Central Cascades, WA" (2011). Summer Research. 74.
University of Puget Sound