Tsurukoba Fm
Period:
Permian
Age Interval:
Early Permian (Sakmarian), (15b)
Province:
Kurosegawa Belt- Shikoku
Type Locality and Naming
Kurosegawa Belt-western Shikoku
Synonym:
Lithology and Thickness
Lithology Pattern:
Coarse clastics
Relationships and Distribution
Lower contact
Regionally, the schematic strat column indicates the next older unit as Miyanaro Fm
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Doi Fm
Regional extent
Kurosegawa Belt-western Shikoku. Partly coeval with Haigyu Gr, whereas to the west in Kyushu coeval siliciclastic strata
GeoJSON
null
Fossils
Age
Shown as Early Permian, hence placed Base of Sakmarian
Age Span:
Beginning stage:
Sakmarian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
293.52
Ending stage:
Kungurian
Fraction up in the ending stage:
1.0
Ending date (Ma):
274.37
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.