Fig.8-20 Distribution of sedimentary rock contemporaneous with Mizunami Group and volcanic rock after depositing Mizunami Group in Southwest Japan

Fig.8-20　Distribution of sedimentary rock contemporaneous with Mizunami Group and volcanic rock after depositing Mizunami Group in Southwest Japan

Fig.8-20　Distribution of sedimentary rock contemporaneous with Mizunami Group and volcanic rock after depositing Mizunami Group in Southwest Japan

Mizunami Group was deposited contemporaneously with the opening of the Japan Sea. Contemporaneous sedimentary rock, distributed around the Seto Inland Sea and from the San’in district to the Chubu District, does not contain volcanic rock. Large-scale volcanic activity is not inferred in the area.

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