East Oshima Oceanic basalt Fm
Period:
Triassic
Age Interval:
Province:
Hokkaido
Type Locality and Naming
Rebun-Kabato Sub-belt and Oshima Belt
Synonym:
Lithology and Thickness
Oceanic island basalt. Basaltic lava and breccia, closely associated with limestones, are of oceanic-island origins (Kawamura et al. 1986).
Lithology Pattern:
Volcanics
Relationships and Distribution
Lower contact
No data.
Upper contact
East Oshima limestone Fm (conformable)
Regional extent
Rebun-Kabato Sub-belt and East Oshima Belt
GeoJSON
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Fossils
Age
Age Span:
Beginning stage:
Carnian
Fraction up in beginning stage:
0
Beginning date (Ma):
237.00
Ending stage:
Norian
Fraction up in the ending stage:
0
Ending date (Ma):
227.30
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Hayato Ueda. 2g Hokkaido. in Moreno, T., WALLIS, S., Kojima, T. & Gibbons, W. (Eds) 2016. The Geology of Japan. Geological Society. London. 201-220.