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Blueschists of the Kodiak Islands, Alaska: An extension of the Seldovia schist terrane

1977; Geological Society of America; Volume: 5; Issue: 9 Linguagem: Inglês

10.1130/0091-7613(1977)5 2.0.co;2

1943-2682

J.R. Carden, William Connelly, Robert B. Forbes, Donald L. Turner,

Geological and Geochemical Analysis

Research Article| September 01, 1977 Blueschists of the Kodiak Islands, Alaska: An extension of the Seldovia schist terrane J. R. Carden; J. R. Carden 1Geophysical Institute, University of Alaska, Fairbanks, Alaska 99701 Search for other works by this author on: GSW Google Scholar W. Connelly; W. Connelly 2Earth Sciences Board, University of California, Santa Cruz, Santa Cruz, California 95064 Search for other works by this author on: GSW Google Scholar R. B. Forbes; R. B. Forbes 3Geophysical Institute, University of Alaska, Fairbanks, Alaska 99701 Search for other works by this author on: GSW Google Scholar D. L. Turner D. L. Turner 3Geophysical Institute, University of Alaska, Fairbanks, Alaska 99701 Search for other works by this author on: GSW Google Scholar Author and Article Information J. R. Carden 1Geophysical Institute, University of Alaska, Fairbanks, Alaska 99701 W. Connelly 2Earth Sciences Board, University of California, Santa Cruz, Santa Cruz, California 95064 R. B. Forbes 3Geophysical Institute, University of Alaska, Fairbanks, Alaska 99701 D. L. Turner 3Geophysical Institute, University of Alaska, Fairbanks, Alaska 99701 Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1977) 5 (9): 529–533. https://doi.org/10.1130/0091-7613(1977)5 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 Email Permissions Search Site Citation J. R. Carden, W. Connelly, R. B. Forbes, D. L. Turner; Blueschists of the Kodiak Islands, Alaska: An extension of the Seldovia schist terrane. Geology 1977;; 5 (9): 529–533. doi: https://doi.org/10.1130/0091-7613(1977)5 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 The Kodiak Islands are composed of a series of northeast-trending belts of schists and deep-sea rock types that are interpreted as having been accreted to the continental margin during several discrete phases of subduction since early Mesozoic time. The Kodiak Islands schist terrane is the oldest of these accretionary belts and crops out discontinuously along the northwest side of the islands. Metamorphic rocks in this belt include quartz-mica schist, marble, metachert, greenschist, blueschist, and epidote amphibolite; the rocks yield Early Jurassic K-Ar mineral ages. These ages apparently provide a measure for the age of emplacement of the Kodiak Islands schists and are consistent with independently determined age estimates based on (1) biostratigraphy of the associated forearc basin deposits and (2) K-Ar ages from the associated plutonic arc on the Alaska Peninsula. Similarities in rock types, mineral ages, and tectonic setting indicate that the Kodiak Islands schist terrane is the southwestern extension of the Seldovia blueschists of the Kenai Peninsula. 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.