Tectonic property of late Paleozoic garnet-bearing high-<i>P</i>/<i>T</i> schist at the boundary between the Nedamo and North Kitakami belts, NE Japan

An exotic block of garnet-bearing schist has been found at the boundary between Early Triassic Takinosawa Unit Nedamo Belt and Jurassic Nakatsugawa Complex North Kitakami Belt, NE Japan. This is only second discovery schists in Belt; previously identified occur early Carboniferous Tsunatori units Belt. The characterized by a mineral assemblage garnet + phengite epidote albite quartz titanite. Phengite with Si 6.51-6.66 atoms per formula unit (O = 22) suggest that underwent high-P/T metamorphism prior to emplacement into its current position. yields K-Ar age ca. 290 Ma (late Paleozoic), suggesting correlation Yamagami Metamorphic Rocks from Motai-Matsugadaira finding supports extension late Paleozoic metamorphic rocks (i.e., Renge SW Japan)