Hirayama Loam

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Hirayama Loam Takada Plain Research Group, 1961

Type locality: Ainokaze park, Joetsu city, Niigata prefecture
Loam
late Pleistocene
Correlation: B - E Beds of Kubiki Loam

Lithofacies: Loam

Thickness: 0 - 4 m
Lower limit: Unconformity (Hirayama Formation, Ainokaze Formation, Older Okemi Landslide Deposits, Younger Okemi Landslide Deposits)

Kubiki Loam
[ Upper ]
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Hirayama Loam
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[ Lower ]

Mount Takatoko, Niigata pref.
[ Upper ]
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Hirayama Loam
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Hanabusa Loam
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Ogai Loam
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Noroshidai Loam
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[ Lower ]

------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown

Distribution: Ainokaze park, Joetsu city, Niigata pref.
Tephra: AT, DKP, My-Hb, Kh-Od

Yanagisawa et al. (2000) Geology of the Iiyama District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 144p. (in Japanese with English abstract 6p.)
Akahane and Kato (1989) Geology of the Takada-Seibu District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 89p. (in Japanese with English abstract 3p.)