High paleogeothermal gradient with ridge subduction beneath the Cretaceous Shimanto accretionary prism, southwest Japan

Research Article| September 01, 1996 High paleogeothermal gradient with ridge subduction beneath the Cretaceous Shimanto accretionary prism, southwest Japan Arito Sakaguchi Arito Sakaguchi 1Doctoral Program in Geoscience, University of Tsukuba, Tsukuba 305, Japan Search for other works by this author on: GSW Google Scholar Author and Article Information Arito Sakaguchi 1Doctoral Program in Geoscience, University of Tsukuba, Tsukuba 305, Japan Publisher: Geological Society of America First Online: 02 Jun 2017 Online ISSN: 1943-2682 Print ISSN: 0091-7613 Geological Society of America Geology (1996) 24 (9): 795–798. https://doi.org/10.1130/0091-7613(1996)024<0795:HPGWRS>2.3.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 Arito Sakaguchi; High paleogeothermal gradient with ridge subduction beneath the Cretaceous Shimanto accretionary prism, southwest Japan. Geology 1996;; 24 (9): 795–798. doi: https://doi.org/10.1130/0091-7613(1996)024<0795:HPGWRS>2.3.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 Paleotemperature in the Jurassic Chichibu and the Cretaceous Shimanto accretionary complexes, southwest Japan, increases southward, generally without regard to the early-phase geologic structure. There is an exceptional peak in the Okitsu melange, and the thermal structure probably formed after accretion of the complex. The estimated geothermal gradient is more than 90 °C/km in the Okitsu melange and more than 50 °C/km elsewhere in the complex. The ophiolitic Okitsu melange formed concurrently with Eocene subduction of the Kula-Pacific ridge under the Cretaceous accretionary prism. The previous thermal structure was overprinted by this event. 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.