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Arakigawa Formation

Arakigawa Fm


Period: 
Carboniferous

Age Interval: 
Mississippian (Visean), (19b)


Province: 
Hida Gaien Belt- Fukuji-Takayama area

Type Locality and Naming

Fukuji—Takayama area (a) is the type locality of this belt (Tsukada et al., 2004).

Synonym:


Lithology and Thickness

Mafic volcanic rocks with felsic tuffaceous rocks and limestone

[Figure 1: Stratigraphic relationship among the rocks of the Hida Gaien Belt (after M. Ehiro et al., 2016)]

[Figure 2: A columnar section of the Muribu and Fukuji successions showing their major lithologies and characteristic layers and blocks (after M. Ehiro et al., 2016)]


Lithology Pattern: 
Volcanics


Relationships and Distribution

Lower contact

Regionally, the schematic strat column indicates the next older unit as Rosse Fm

Upper contact

It is in fault contact with the Tandodani Fm. Regionally, the schematic strat column indicates the next younger unit as Moribu Fm

Regional extent

Hida Gaien Belt- Fukuji-Takayama area (a)


GeoJSON

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Fossils

The Arakigawa Formation yields Upper Visean—Late Kasimovian (or Gzhelian?) fossils

such as corals, goniatites, foraminifers, fusulinoideans, brachiopods and trilobites (Isomi & Nozawa1957; Fujimoto er al. 1962; lgo 1964; Kobayashi & Hamada I987; Tazawa et al., 2000a).


Age 

Mississippian (Visean)

Age Span: 

    Beginning stage: 
Visean

    Fraction up in beginning stage: 
0.0

    Beginning date (Ma): 
346.73

    Ending stage: 
Gzhelian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
298.89

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

Moreno, T., WALLIS, S., Kojima, T. & Gibbons, W. (Eds) 2016. The Geology of Japan. Geological Society. London. 1-24.