Late Quaternary caldera-forming eruptions in the eastern Aleutian arc, Alaska

Research Article| May 01, 1987 Late Quaternary caldera-forming eruptions in the eastern Aleutian arc, Alaska Thomas P. Miller; Thomas P. Miller 1U.S. Geological Survey, 4200 University Drive, Anchorage, Alaska 99508 Search for other works by this author on: GSW Google Scholar Robert L. Smith Robert L. Smith 2U.S. Geological Survey, 2943-C Fulton Avenue, Sacramento, California 95821 Search for other works by this author on: GSW Google Scholar Author and Article Information Thomas P. Miller 1U.S. Geological Survey, 4200 University Drive, Anchorage, Alaska 99508 Robert L. Smith 2U.S. Geological Survey, 2943-C Fulton Avenue, Sacramento, California 95821 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1987) 15 (5): 434–438. https://doi.org/10.1130/0091-7613(1987)152.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation Thomas P. Miller, Robert L. Smith; Late Quaternary caldera-forming eruptions in the eastern Aleutian arc, Alaska. Geology 1987;; 15 (5): 434–438. doi: https://doi.org/10.1130/0091-7613(1987)152.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGeology Search Advanced Search Abstract Late Quaternary calderas have been identified at 12 of 40 volcanic centers in the eastern Aleutian arc, and sufficient radiocarbon dates and geologic information have now been obtained to either date or constrain the timing of the climactic caldera-forming eruptions. At least eight major caldera-forming events, each characterized by estimated eruption volumes of more than 10 km3, occurred at seven different volcanic centers in the Holocene, and as many as six of these had estimated eruption volumes of more than 50 km3. Eruptions of similar magnitude formed two other calderas in Wisconsin time. The dating of these hitherto little-known events adds significantly to the previously existing chronology of large prehistoric eruptions. This refined chronology is important in understanding eruption-induced climate changes, in assessing volcanic hazards, and in developing a tephrochronology for northwestern North America. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.