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Akan volcano
- Type locality: Hokkaido
- Akan - Shiretoko volcanic chain
- Caldera volcano
- Volcanic rocks
- Pleistocene
- Sedimentary facies: Terrestrial
- Akan pyroclastic deposit
- [ Upper ]
- ~~~~~~~~~~~~~~
- Ak1
- ~~~~~~~~~~~~~~
- Ak2
- ~~~~~~~~~~~~~~
- Ak3
- ~~~~~~~~~~~~~~
- Ak4
- ~~~~~~~~~~~~~~
- Ak5
- ~~~~~~~~~~~~~~
- Ak6
- ~~~~~~~~~~~~~~
- Ak7
- ~~~~~~~~~~~~~~
- Ak8
- ~~~~~~~~~~~~~~
- Ak9
- ~~~~~~~~~~~~~~
- Ak10
- ~~~~~~~~~~~~~~
- Ak11
- ~~~~~~~~~~~~~~
- Ak12
- ~~~~~~~~~~~~~~
- Ak13
- ~~~~~~~~~~~~~~
- Ak14
- ~~~~~~~~~~~~~~
- Ak15
- ~~~~~~~~~~~~~~
- Ak16
- ~~~~~~~~~~~~~~
- Ak17
- ~~~~~~~~~~~~~~
- [ Lower ]
- Previous strategy (Not approved now)
- [ Upper ]
- ~~~~~~~~~~~~~~
- Upper Akan Pumice Flow Deposit (AUP)
- ~~~~~~~~~~~~~~
- Akan Welded Tuff (AWP)
- ~~~~~~~~~~~~~~
- Lower Akan Pumice Flow Deposit (ALP)
- ~~~~~~~~~~~~~~
- Akan Pyroclastic Fall Deposit (AFA)
- ~~~~~~~~~~~~~~
- [ Lower ]
------ Conformity, ~~~~~~ Unconformity, ~~~--- Local unconformity, '''/,, Interfingered, :::::: Fault, /--/-- Thrust, +__+__ Ground surface, ?--?-- Unknown
- Hasegawa et al. (2008) Jour. Geol. Soc. Japan, vol.114, no.7, pp.366-381 DOI
- Hasegawa and Nakagawa (2007) Jour. Geol. Soc. Japan, vol.113, no.2, pp.53-72 DOI