Nakabaru Formation

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Nakabaru Formation

Type locality: Saga prefecture
Coherent formation
Late Pleistocene

Sedimentary facies: Terrestrial
Lithofacies (Top): Clay
Lithofacies: Sand, Interbedded silt and sand
Takagise Formation is partly embedded at the middle of Nakabaru Formation.
Lithofacies (Lower): Sand, Gravel

Upper limit: Conformity
Lower limit: Unconformity

Northeast Chikushi plain
[ Upper ]
?--?--?--?--?-
Upper Hasuike Formation
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Ariake Clay Formation
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Lower Hasuike Formation
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Mitagawa Formation
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Upper Nakabaru Formation
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Takagise Formation
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Lower Nakabaru Formation
~~~~~~~~~~~~~~
Kawazoe Formation
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Ushiya Formation
?--?--?--?--?-
[ Lower ]

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

Distribution: Fukutomi, Shiroishi city, Kishima county, Saga pref.; Yakabe, Yanagawa city, Fukuoka pref.; Shimo-Sakata, Setaka village, Miyama city, Fukuoka pref.; Asakura city - Niomaru - Kitano village - Tanushimaru village, Kurume city, Fukuoka pref.
Tephra: Aso-3 tephra

Shimoyama et al. (2012) Jour. Geol. Soc. Japan, vol.118, no.11, pp.709-722 DOI