U-Pb geochronology of mid-Cretaceous and Tertiary plutons along the western edge of the Coast Mountains, Revillagigedo Island, and Portland Peninsula, southeast Alaska

• Main Authors: Rubin, Charles M., Saleeby, Jason B.
• Other Authors: Stowell, Harold Hilton, McClelland, William C.
• Format: Book Part
• Language: unknown
• Published: Geological Society of America 2000
• Subjects: Ketchikan; Alaska
• Online Access: https://doi.org/10.1130/0-8137-2343-4.145

U-Pb geochronologic and field studies demonstrate that steeply dipping, highly deformed, sheet-like tonalitic to granodiorite plutons along the western flank of the Coast Mountains in the Ketchikan, Alaska, region were emplaced in two distinct episodes, between 105 and 90 Ma and ca. 65 and 50 Ma. A...