Initiation of the Wrangell arc: a record of tectonic changes in an arc-transform junction revealed by new geochemistry and geochronology of the ~29–18 Ma Sonya Creek volcanic field, Alaska

• Main Author: Berkelhammer, Samuel Ethan
• Format: Thesis
• Language: English
• Published: Kansas State University
• Subjects: Igneous petrology; Wrangell arc; Sonya Creek volcanic field; Alaskan volcanism; Tectonics; Radiogenic isotopes; Duke River; Fairweather; Flat Top; Queen Charlotte; Yukon; Yakutat; Alaska
• Online Access: http://hdl.handle.net/2097/36236

Master of Science Department of Geology Matthew E. Brueseke The Sonya Creek volcanic field (SCVF) contains the oldest in situ magmatic products in the ~29 Ma–modern Wrangell arc (WA) in south-central Alaska. The WA is located within a transition zone between Aleutian subduction to the west and dextr...