Towada Okoshi 2 Tephra

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Towada Okoshi 2 Tephra

Abbr.: OP2

Type locality: Suginoki, Towada city, Aomori prefecture
Tephra
late Pleistocene

Lithofacies (Upper): Volcanic ash
Lithofacies (Middle): Volcanic ash
Lithofacies (Lower): Pumice fall deposit

Source: Towada caldera
Thickness (Overall): 8 - 30 cm
Thickness (Upper): 11 cm
Thickness (Middle): 16 cm
Thickness (Lower): 7 cm

Takadate Tephra Group
[ Upper ]
~~~~~~~~~~~~~~
Towada T-22 Tephra
~~~~~~~~~~~~~~
Towada SP Tephra
~~~~~~~~~~~~~~
Towada Okoshi 2 Tephra
~~~~~~~~~~~~~~
Towada T-17 Tephra
~~~~~~~~~~~~~~
Towada Aosuji Tephra
~~~~~~~~~~~~~~
Towada T-15 Tephra
~~~~~~~~~~~~~~
Towada Kasutera Tephra
~~~~~~~~~~~~~~
Towada Sc1 Tephra
~~~~~~~~~~~~~~
Toya Pyroclastic Flow Deposit
~~~~~~~~~~~~~~
Towada Zarame 2 Tephra
~~~~~~~~~~~~~~
Towada Zarame 1 Tephra
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: southern part of Kamikita plain, Aomori pref.
Distribution: Suginoki, Towada city, Aomori pref.; Kokarumai, Karumai city, Kunohe county, Iwate pref.

Kudo (2005) Geology of the Towada District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 79p. (in Japanese with English abstract 3p.)
Yoshida et al. (1987) Geology of the Rikuchu-Ono District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 70p. (in Japanese with English abstract 6p.)