Kazafukidake Lava

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Kazafukidake Lava (Sakuyama, 1980) Nakano et al., 2002

Invvalid synonym: Kazafukidake Andesites

Type locality: Mount Kazafuki, Nakaotari, Otari city, Kitaazumi county, Nagano prefecture
Volcanic rocks
Pleistocene (younger than 0.6 Ma)

Sedimentary facies: Lava dome
Lithofacies: Olivine-bearing quartz hypersthene augite biotite hornblede andesite lava

Distribution (Lava dome, Height): ca. 200 m
Upper limit: Interfingered (Kazafukidake Pyroclastic Flow Deposits)
Lower limit: Unconformity (Oeyama Ophiolite)

Younger stage
[ Upper ]
~~~~~~~~~~~~~~
Kazafukidake Pyroclastic Flow Deposits
'''''''/,,,,,,
Kazafukidake Lava
~~~~~~~~~~~~~~
Ebiradake Lava
~~~~~~~~~~~~~~
Norikuradake Lava
~~~~~~~~~~~~~~
[ Lower ]

Shirouma-Oike volcano
[ Upper ]
+__+__+__+__+_
Younger stage
~~~~~~~~~~~~~~
Older stage
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Kotaki, Itoigawa city, Niigata pref.; Nakaotari - Kitaotari - Mount Kazaukidake - Mount Iwasugeyama - Mount Yokomaekurayama, Otari city, Kitaazumi county, Nagano pref.

Nagamori et al. (2010) Geology of the Kotaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 130p. (in Japanese with English abstract 4p.)
Machi and Ishiwatari (2010) Jour. Geol. Soc. Japan, vol.116, no.6, pp.293-308 DOI
Nakano et al. (2002) Geology of the Shiroumadake District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, AIST, 105p. (in Japanese with English abstract 5p.)