East Oshima limestone Fm
Period:
Triassic
Age Interval:
Province:
Hokkaido
Type Locality and Naming
Rebun-Kabato Sub-belt and Oshima Belt
Synonym:
Lithology and Thickness
Late Triassic ages have been assigned for limestones based on fossils such as corals, algae, fusulinids and conodonts (e.g. Minato & Rowett 1967; Sakagami et al. 1969; Yoshida & Aoki 1972; Minoura & Kato 1978).
Lithology Pattern:
Reef limestone
Relationships and Distribution
Lower contact
Upper contact
Regional extent
Rebun-Kabato Sub-belt and East Oshima Belt
GeoJSON
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Fossils
Age
Age Span:
Beginning stage:
Norian
Fraction up in beginning stage:
0
Beginning date (Ma):
227.30
Ending stage:
Alaunian
Fraction up in the ending stage:
0
Ending date (Ma):