Funagawara Fm
Period:
Cretaceous
Age Interval:
Early Cretaceous (Hauterivian), (8k)
Province:
South Kitakami Belt-Eastern Sub-belt
Type Locality and Naming
the Ofunato Sub-belt
Synonym:
Lithology and Thickness
It is composed of conglomerate, sandstone, mudstone and tuffaceous sandstone
Lithology Pattern:
Aus conglomerate
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Kobosoura Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Hijochi Fm
Regional extent
GeoJSON
null
Fossils
has yielded late Hauterivian ammonoids (Obata & Matsumoto 1977; Matsumuto et a1., 1982) and late Hauterivian-early Barremian, brackish to shallow-marine bivalves (K023i & Tashiro 1993).
Age
Early Cretaceous (Hauterivian)
Age Span:
Beginning stage:
Hauterivian
Fraction up in beginning stage:
0.2
Beginning date (Ma):
131.38
Ending stage:
Barremian
Fraction up in the ending stage:
0.0
Ending date (Ma):
126.50
Depositional setting
brackish to shallow-marine
Depositional pattern:
Additional Information
Compiler:
Moreno, T., WALLIS, S., Kojima, T. & Gibbons, W. (Eds) 2016. The Geology of Japan. Geological Society. London. 1-24.