Kasayama Conglomerate Member

[ Top ] [ Japanese ]

Kasayama Conglomerate Member

Coherent formation
Izumi sedimentary basin
Forearc basin associated with strike-slip fault related to Median Tectonic Line
Cretaceous

Sedimentary facies: Marine
Sedimentary facies: Continental shelf
Sedimentary facies: Basal conglomerate
Lithofacies: Conglomerate
Lithofacies (Minor): Sandstone

Thickness: 10 - 150 m
Upper limit: Transitional (Azenotani Mudstone Member, Takihata Alternation Member)
Lower limit: Abut unconformity (Sennan Rhyolites)

Mutsuo Formation (Eastern part)
[ Upper ]
--------------
Azenotani Mudstone Member
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Kasayama Conglomerate Member
~~~~~~~~~~~~~~
[ Lower ]

Mutsuo Formation (Western part)
[ Upper ]
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Takihata Alternation Member
--------------
Kasayama Conglomerate Member
~~~~~~~~~~~~~~
[ Lower ]

Northern marginal facies (Izumi mountains, Wakayama pref.)
[ Upper ]
--------------
Mutsuo Formation
--------------
[ Lower ]

Izumi Group
[ North ]
~~~~~~~~~~~~~~
Northern marginal facies
~~~~~~~~~~~~~~
Main facies
~~~~~~~~~~~~~~
Southern facies
~~~~~~~~~~~~~~
[ South ]

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

Distribution: Mount Kasayama, Sennan city, Osaka pref.

Seike et al. (2013) Jour. Geol. Soc. Japan, vol.119, no.12, pp.759-775 DOI
Miyata et al. (1993) Geology of the Wakayama and Ozaki District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 68p. (in Japanese with English abstract 4p.)
Itihara et al. (1986) Geology of the Kishiwada District, Quadrangle Series, Scale 1:50,000, Geological Survey of Japan, 148p. (in Japanese with English abstract 7p.)