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Omaezaki Terrace Deposits Sugiyama et al., 1987

Invalid synonym: Shirowa Gravel Bed, Shirowa facies

• Type locality: Shirowa, Omaezaki city, Shizuoka prefecture
• Coherent formation
• late Pleistocene (ca. 60 ka)
• Correlation: Misaki Sand and Gravel Deposits

• Sedimentary facies: Marine
• Sedimentary facies: Gravelly coast
• Sedimentary facies (Basal): Wave-cut platform deposit
• Lithofacies (Upper): Gravels
• 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
• Paleocurrent (Upper): to South - Southwest

• Thickness: ca. 5 - 11 m
• Thickness (Upper): ca. 2 - 3 m
• Thickness (Middle): ca. 1 m
• Thickness (Lower): ca. 2 - 5 m
• Thickness (Basal): ca. 30 cm - 1 m
• Lower limit: Unconformity (Sagara Group)

• Distribution: Shirowa, Omaezaki city, Shizuoka pref.; Jitogata, Makinohara city, Shizuoka pref.

• 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.)