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Kanamatazawa Lava
- Stratovolcano
 
- West Chokai edifice
 
- Volcanic rocks
 
- Pleistocene
 
- Lithofacies: Calc-alkaline
 
- Lithofacies: Hypersthene augite andesite
 
- Lithofacies: Lava (more than 4 flow units)
 
- Stage II
 - [ Upper ]
 
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- Stage IIc
 
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- Formation of West Chokai horseshoe-shaped caldera
 
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- Stage IIb
 
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- Stage IIa
 
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- [ Lower ]
 
 
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Mount Horai - Hacchosaka slope, Sakata city, Yamagata pref.; Fujikura river - Kanamata creek, Yuza city, Akumi county, Yamagata pref.
 
- Nakano and Tsuchiya (1992) Geology of the Chokaisan and Fukura District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 138p. (in Japanese with English abstract 7p.)