Hosoo Fm
Period:
Permian
Age Interval:
Upper Permian (Roadian), (8d)
Province:
South Kitakami Belt-Okago region
Type Locality and Naming
Toyoma(Okago); North Kesennuma; South Kesennuma; Utatsu districts
Synonym:
Lithology and Thickness
It is dominated by mudstone
[Figure 1: Stratigraphy of the Palaeozoic of the South Kitakatmi Belt, NE Japan (after M. Ehiro et al., 2016)]
Lithology Pattern:
Claystone
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Nakadaira Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Kamiyasse Fm
Regional extent
Toyoma(Okago); North Kesennuma; South Kesennuma; Utatsu districts
GeoJSON
null
Fossils
Age
Upper Permian (Roadian)
Age Span:
Beginning stage:
Roadian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
274.37
Ending stage:
Roadian
Fraction up in the ending stage:
1.0
Ending date (Ma):
269.21
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.