The Nankai Trough (Fig. 1) is the subducting plate boundary between the Shikoku Basin and the southwest Japan arc (Eurasian plate). The Shikoku Basin is part of the Philippine Sea plate, which is subducting to the northwest under southwest Japan at a rate of 2-4 cm/yr (Karig and Angevine, 1986; Seno, 1977), slightly oblique to the plate margin. The goals of Legs 190/196 are to: (1) understand the structural and hydrologic evolution of the décollement zone; (2) delineate chemical gradients and fluid flow paths; (3) contrast the stratigraphic and deformational framework along strike; and (4) document the Miocene to Recent evolution of the accretionary prism.
|Original language||English (US)|
|Number of pages||8|
|State||Published - 2000|
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