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Mine Bed

• Coherent formation
• Pleistocene (ca. 0.3 - 0.2 Ma)
• Correlation: Nekoya Formation

• Climate: Warm, Humid (Pollen)
• Lithofacies: Mud, Gravels, Sands

• Thickness: 15 m or thicker
• Lower limit: Unconformity (Fujikawa Group)

• Distribution: Shimizu Interchange - Mine hills, Shimizu ward, Shizuoka city, Shizuoka pref.
• Fossils (Shellfishes): Anadara sp., Dentalium sp., Yoldia sp.
• Fossils (Pollen): Abies sp., Alnus sp., Araliaceae, Artemisia sp., Betula sp., Carpinus sp., Caryophyllaceae, Castanopsis sp., Cercidiphyllum? sp., Chenopodiaceae Cichorioideae, Cyperaceae, Cryptomeria? sp. Eriocaulon sp., Fagus sp., Gramineae, Juglans sp., Lagerstroemia sp., Larix sp., Lycopodium sp., Ostrya sp., Picea sp., Pinus (Diploxylon) sp., Pinus (Haploxylon) sp., Polygonum sp., Pseudotsuga sp., Pteris sp., Quercus (Cyclobalanopsis) sp., Quercus (Lepidobalanus) sp., Ranunculaceae, Sciadopitys sp., Tsuga sp., Typha sp., Ulmus sp., Viburnum sp., Zelkova sp.

• Sugiyama and Shimokawa (1990) Geology of the Shimizu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 103p. (in Japanese with English abstract 8p.)