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• W2884530712 endingPage "2043" @default.
• W2884530712 startingPage "2009" @default.
• W2884530712 abstract "The Integrated Ocean Drilling Program, as part of the Nankai Trough Seismogenic Zone Experiment, recovered samples of mud and mudstone from the Kumano forearc basin, the inner and outer accretionary prisms, the overlying slope apron, and the Shikoku Basin (subduction inputs). This unprecedented suite of cores and cuttings captures an unusually complicated history of subduction-zone tectonics, erosion and dispersal of suspended sediment from multiple sources, and sedimentation in diverse environments. Our X-ray diffraction analyses of 1567 samples show that clay-mineral assemblages shifted gradually throughout the subduction system, from a smectite-rich assemblage during the Miocene to a more illite- and chlorite-rich assemblage during the Pliocene and Quaternary. Miocene muds in the Shikoku Basin (Sites C0011 and C0012) originated primarily from weathering of anomalous, near-trench felsic-volcanic rocks along a broad swath of the Outer Zone of Japan. The middle Miocene, however, was also a time of sediment transport into the Shikoku Basin by turbidity currents emanating from the East China Sea (Kyushu Fan). Interfingering of clays from those two sources resulted in considerable compositional scatter. Our results also reveal large discrepancies in contents of smectite between Miocene mudstones from the inner accretionary prism (Sites C0001 and C0002) and coeval mudstones from the Shikoku Basin. We suggest that frontal accretion during the early-late Miocene was a product of Pacific plate subduction rather than subduction of the Philippine Sea plate. Routing of sand through the East China Sea was effectively cut off by ca. 7 Ma due to rifting of the Okinawa Trough and the buildup of topography along the Ryukyu arc-trench system. Subduction of Shikoku Basin restarted at ca. 6 Ma, and denudation of the Outer Zone continued through the Pliocene and Quaternary. Those adjustments in weathering, from volcanoes to exposures of plutons and metasedimentary rocks, gradually increased the concentrations of illite and chlorite. By the late Pliocene, multiple sources, including the rapidly uplifted Izu-Honshu collision zone, supplied suspended sediment through a combination of transverse and trench-parallel (axial) routing. At the same time, the northeast-directed Kuroshio Current intensified at ca. 3.5 Ma. That regional-scale oceanographic transition probably resulted in more illitic clays moving from offshore Taiwan through the Okinawa Trough, although its compositional signal is masked by simultaneous enrichment of illite from the Outer Zone sources. Accreted trench-wedge deposits in the frontal prism (Sites C0006 and C0007) originated mostly from the Izu-Honshu collision zone, and most were transported down the axis of the trench by sediment gravity flow. Hemipelagic deposits in the Kumano Basin (Site C0002) were homogenized from a combination of transverse gravity flows, northeast-directed surface current, and thermohaline bottom currents. Slope-apron and slope-basin deposits (including mass-transport deposits) likewise show uniform clay-mineral assemblages indicative of northeast-directed transport by the Kuroshio Current, transverse resedimentation, and bottom-water circulation. Collectively, these differences in sediment composition in both time and space set the Nankai-Shikoku depositional system apart from other subduction zones, and they are important to consider when assessing the margin’s hydrogeology and frictional and/or geotechnical properties." @default.
• W2884530712 created "2018-08-03" @default.
• W2884530712 creator A5041873880 @default.
• W2884530712 creator A5082342989 @default.
• W2884530712 date "2018-07-26" @default.
• W2884530712 modified "2023-10-16" @default.
• W2884530712 title "Clay-mineral assemblages across the Nankai-Shikoku subduction system, offshore Japan: A synthesis of results from the NanTroSEIZE project" @default.
• W2884530712 cites W1068544150 @default.
• W2884530712 cites W110068661 @default.
• W2884530712 cites W118076599 @default.
• W2884530712 cites W1509092905 @default.
• W2884530712 cites W1523186345 @default.
• W2884530712 cites W1524610424 @default.
• W2884530712 cites W1525622225 @default.
• W2884530712 cites W1527148808 @default.
• W2884530712 cites W1527380012 @default.
• W2884530712 cites W1528230087 @default.
• W2884530712 cites W1537905573 @default.
• W2884530712 cites W1546964752 @default.
• W2884530712 cites W1553230424 @default.
• W2884530712 cites W1572902931 @default.
• W2884530712 cites W1574860115 @default.
• W2884530712 cites W1598367222 @default.
• W2884530712 cites W1636727477 @default.
• W2884530712 cites W1650671565 @default.
• W2884530712 cites W1786018409 @default.
• W2884530712 cites W1884619619 @default.
• W2884530712 cites W1890006364 @default.
• W2884530712 cites W1901261210 @default.
• W2884530712 cites W1931089213 @default.
• W2884530712 cites W1931506078 @default.
• W2884530712 cites W1939012349 @default.
• W2884530712 cites W1963727151 @default.
• W2884530712 cites W1964410348 @default.
• W2884530712 cites W1964743712 @default.
• W2884530712 cites W1965196958 @default.
• W2884530712 cites W1965853619 @default.
• W2884530712 cites W1967654511 @default.
• W2884530712 cites W1969426269 @default.
• W2884530712 cites W1970108402 @default.
• W2884530712 cites W1970303579 @default.
• W2884530712 cites W1970591142 @default.
• W2884530712 cites W1972724676 @default.
• W2884530712 cites W1972798405 @default.
• W2884530712 cites W1973346686 @default.
• W2884530712 cites W1973393135 @default.
• W2884530712 cites W1973880241 @default.
• W2884530712 cites W1974859121 @default.
• W2884530712 cites W1975289632 @default.
• W2884530712 cites W1975578634 @default.
• W2884530712 cites W1976949892 @default.
• W2884530712 cites W1976970394 @default.
• W2884530712 cites W1977921224 @default.
• W2884530712 cites W1980906500 @default.
• W2884530712 cites W1981014410 @default.
• W2884530712 cites W1981359677 @default.
• W2884530712 cites W1981807969 @default.
• W2884530712 cites W1983117236 @default.
• W2884530712 cites W1983119538 @default.
• W2884530712 cites W1983267892 @default.
• W2884530712 cites W1984670316 @default.
• W2884530712 cites W1985679326 @default.
• W2884530712 cites W1986194912 @default.
• W2884530712 cites W1987909960 @default.
• W2884530712 cites W1989847567 @default.
• W2884530712 cites W1992846059 @default.
• W2884530712 cites W1994347390 @default.
• W2884530712 cites W1996134508 @default.
• W2884530712 cites W1996227789 @default.
• W2884530712 cites W1996662904 @default.
• W2884530712 cites W1997261420 @default.
• W2884530712 cites W1998502075 @default.
• W2884530712 cites W1999045024 @default.
• W2884530712 cites W1999612264 @default.
• W2884530712 cites W2000795509 @default.
• W2884530712 cites W2001234264 @default.
• W2884530712 cites W2002707883 @default.
• W2884530712 cites W2004153174 @default.
• W2884530712 cites W2005825162 @default.
• W2884530712 cites W2008122516 @default.
• W2884530712 cites W2008268218 @default.
• W2884530712 cites W2008463136 @default.
• W2884530712 cites W2009454183 @default.
• W2884530712 cites W2011916076 @default.
• W2884530712 cites W2012500250 @default.
• W2884530712 cites W2012500814 @default.
• W2884530712 cites W2014683293 @default.
• W2884530712 cites W2015400840 @default.
• W2884530712 cites W2016684199 @default.
• W2884530712 cites W2017922709 @default.
• W2884530712 cites W2018882622 @default.
• W2884530712 cites W2019061427 @default.
• W2884530712 cites W2021195792 @default.
• W2884530712 cites W2024427164 @default.
• W2884530712 cites W2025173458 @default.
• W2884530712 cites W2026893900 @default.
• W2884530712 cites W2027526526 @default.
• W2884530712 cites W2028121951 @default.

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