Futaba Gr
Period:
Cretaceous
Age Interval:
Late Cretaceous (Coniacian), (15a)
Province:
Kurosegawa Belt- Shikoku
Type Locality and Naming
Kurosegawa Belt-central Shikoku
Synonym:
Lithology and Thickness
Composed mainly of clastic rocks
Lithology Pattern:
Coarse clastics
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Kuji Gr
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Noda Gr
Regional extent
Kurosegawa Belt-central Shikoku
GeoJSON
null
Fossils
Age
Shown as Coniacian-early Santonian, hence placed 50% up in Coniacian
Age Span:
Beginning stage:
Coniacian
Fraction up in beginning stage:
0.5
Beginning date (Ma):
87.55
Ending stage:
Maastrichtian
Fraction up in the ending stage:
1.0
Ending date (Ma):
66.04
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.