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Tectonic significance of early Oligocene plutonism on Adak Island, central Aleutian Islands, Alaska

1980; Geological Society of America; Volume: 8; Issue: 8 Linguagem: Inglês

10.1130/0091-7613(1980)8 2.0.co;2

1943-2682

Gary P. Citron, Robert W. Kay, Suzanne Mahlburg Kay, Lawrence W. Snee, John F. Sutter,

Climate change and permafrost

Research Article| August 01, 1980 Tectonic significance of early Oligocene plutonism on Adak Island, central Aleutian Islands, Alaska G. P. Citron; G. P. Citron 1Department of Geological Sciences, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar R. W. Kay; R. W. Kay 1Department of Geological Sciences, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar S. Mahlburg Kay; S. Mahlburg Kay 1Department of Geological Sciences, Cornell University, Ithaca, New York 14853 Search for other works by this author on: GSW Google Scholar L. W. Snee; L. W. Snee 2Department of Geology and Mineralogy, Ohio State University, Columbus, Ohio 43210 Search for other works by this author on: GSW Google Scholar J. F. Sutter J. F. Sutter 2Department of Geology and Mineralogy, Ohio State University, Columbus, Ohio 43210 Search for other works by this author on: GSW Google Scholar Author and Article Information G. P. Citron 1Department of Geological Sciences, Cornell University, Ithaca, New York 14853 R. W. Kay 1Department of Geological Sciences, Cornell University, Ithaca, New York 14853 S. Mahlburg Kay 1Department of Geological Sciences, Cornell University, Ithaca, New York 14853 L. W. Snee 2Department of Geology and Mineralogy, Ohio State University, Columbus, Ohio 43210 J. F. Sutter 2Department of Geology and Mineralogy, Ohio State University, Columbus, Ohio 43210 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1980) 8 (8): 375–379. https://doi.org/10.1130/0091-7613(1980)8 2.0.CO;2 Article history First Online: 02 Jun 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Get Permissions Search Site Citation G. P. Citron, R. W. Kay, S. Mahlburg Kay, L. W. Snee, J. F. Sutter; Tectonic significance of early Oligocene plutonism on Adak Island, central Aleutian Islands, Alaska. Geology 1980;; 8 (8): 375–379. doi: https://doi.org/10.1130/0091-7613(1980)8 2.0.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 Six biotite and two hornblende separates from the Hidden Bay pluton, Adak Island, yielded K-Ar dates that cluster about an average of 33.13 ± 0.41 m.y. B.P. This average is interpreted as the time of intrusion of the pluton and provides the first documentation of an early Oligocene magmatic event in the central Aleutian island arc. Biotite and hornblende from the nearby Kagalaska pluton on Adak Island yielded nearly concordant K-Ar dates that have an average of 13.15 ± 0.55 m.y. B.P., in good agreement with published dates of about 13 to 14 m.y. B.P. 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.