Geologic Unit Name Kodaragawa Formation(5336) Age Middle Jurassic Distribution Area(2nd Mesh Cord) 533646
Mesh Cord Map/5336 Explanatory Notes Ss,Sa,Si Mesh Cord Explanatory Notes
Mesh Cord Explanatory Notes Mesh Cord Explanatory Notes
Thickness Tokunaga Sandstone Member: Estimated at 5000-6000 m. Komami Siliceous Shale Member: 700-800 m at thickest in Hokiguchi to Sugihara, Itadorimura, 500 m in Komami, Yamatomura and 100-150 m at thinnest in Kamikanji, Yamatoson. Fukazara Sandstone Mudstone Member: 500 m at thinnest in Shimofurumichi and less than 1000 m in Fukazara east.
Rock Facies Tokunaga Sandstone Member: Siliceous shale, pelitic submarine landslide deposit (chiefly endolistostrome I and partly allolistostrome), mudstone, massive sandstone (accompanied with very thick bedded sandstone, interbedded sandstone and mudstone, and pelitic submarine landslide deposit (endolistostrome I), mudstone, and conglomerate); Komami Siliceous Shale Member: Siliceous shale, massive sandstone, and mudstone; Fukazara Sandstone Mudstone Member: Siliceous shale, and sandstone dominant interbedded sandstone and mudstone.
Type Locality Tokunaga Sandstone Member: Kodaragawa river basin in Hachimanmachi. Komami Siliceous Shale Member: Near Komami, Yamatomura. Fukazara Sandstone Mudstone Member: From Komami, Yamatomura through Shimofurumichi and Kamikanji to Fukazara, Hachimanmachi in parallel to Komami Siliceous Shale Member.
Naming
Reference