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As-MP Tephra
Abbr.: As-MP
- Tephra
- Pleistocene (ca. 25 - 20 ka)
- Lithofacies: Pyroxene andesite pumice
- As-BP Tephra
- [ Upper ]
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- Main part
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- As-MP Tephra
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- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Distribution: Gunma pref.
- Geshi and Takeuchi (2012) Geology of the Haruna San District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 79p. (in Japanese with English abstract 3p.)