Kazawa Formation

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Kazawa Formation Hayakawa et al, 1954

Type locality: Kazawa, Hanaizumi town, Ichinoseki city, Iwate prefecture
Coherent formation
Pliocene
Correlation: lower Onuki Formation

Sedimentary facies: Terrestrial
Lithofacies (Upper): Conglomerate, Sandstone
Lithofacies (Lower): Sandstone, Siltstone, Mudstone
Lithofacies (Lower, Minor): Lignite
Sedimentary structures: Cross stratification

Thickness: ca. 30 m
Upper limit: Unconformity (Tsukidate Formation, Takashimizu Formation, Umegasawa Tuff)
Lower limit: Conformity (Tatsunokuchi Formation), Abut unconformity (Toyoma Formation, Ishikoshi Andesite)

Kazawa Formation (Kazawa, Iwate pref.)
[ Upper ]
~~~~~~~~~~~~~~
Gobuta Tuff Member
--------------
Kazawa Lignite Member
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Iikura Conglomerate Member
~~~~~~~~~~~~~~
[ Lower ]

Sendai Group (Shizugawa, Miyagi pref.)
[ Upper ]
~~~~~~~~~~~~~~
Mataki Formation
--------------
Kazawa Formation
--------------
Tatsunokuchi Formation
-------'''/,,,
Kameoka Formation
~~~~~~~~~~~~~~
[ Lower ]

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

Distribution: Kazawa - Kusenzawa - Sugiyama, Hanaizumi town, Ichinoseki city, Iwate pref.

Takeuchi and Kaneko (1996) Geology of the Shizugawa District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 93p. (in Japanese with English abstract 5p.)
Matsuno (1967) Geology of the Wakayanagi District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 24p. (in Japanese with English abstract 5p.)