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Kasana Terrace Deposits Sugiyama et al., 1987

• Type locality: Kasana, Makinohara city, Shizuoka prefecture
• Coherent formation
• late Pleistocene (ca. 80 ka)
• Correlation: Obaradai Sand and Gravel Formation, Oshika Gravel Bed

• Sedimentary facies (Top): Fluvial
• Sedimentary facies: Shallow marine
• Sedimentary facies (Top): River channel, Flood plain
• Sedimentary facies: Foreshore, Backshore
• Sedimentary facies (Basal): Wave-cut plat form deposit
• Depth of water (Basal): ca. 2 - 6 m
• Lithofacies (Top): Gravels, Silt, Sands
• Lithofacies (Upper): Gravels
• Lithofacies (Upper, Minor): Sands
• Lithofacies (Middle): Gravels
• Lithofacies (Middle, Minor): Sands
• Lithofacies (Lower): Gravels
• Lithofacies (Basal): Sands
• Lithofacies (Basal, Minor): Gravels
• Sedimentary structures (Upper): Parallel stratification, Planar cross-stratification, Imbricate structure
• Sedimentary structures (Middle): Parallel stratification

• Thickness: ca. 5 - 8 m
• Thickness (Top): ca. 1.5 m
• Thickness (Upper): ca. 1.5 - 4 m
• Thickness (Middle): ca. 1 - 1.5 m
• Thickness (Lower): 1 - 3 m
• Thickness (Basal): ca. 20 cm - 2 m or thicker
• Lower limit: Unconformity (Furuya Mud Bed)

• Distribution: Kasana - Jitogata, Makinohara city, Shizuoka pref.
• Tephra: Ka-1, Ka-2

• Sugiyama et al. (1988) Geology of the Omaezaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 153p. (in Japanese with English abstract 6p.)