Cuijiagou Fm
Period:
Silurian
Age Interval:
early Telychian, (45)
Province:
Shaanxi
Type Locality and Naming
Type section at Cuijiagou in Dazhuba, Ningqiang County, Shaanxi Province. Named by Nanjing Institute of Geology and Palaeontology, Academia Sinica, 1974, Handbook of Stratigraphy and Palaeontology of Southwestern China, Beijing: Science Press
Synonym:
Lithology and Thickness
Yellowish green shales with interbeds of sandstone or black shale, locally with siliceous rock
Lithology Pattern:
Sandy claystone
Relationships and Distribution
Lower contact
Regionally, the next older unit is the Longmaxi Fm of early Silurian
Upper contact
Conformable below the Wangjiawan Fm
Regional extent
GeoJSON
null
Fossils
Age
Schematic strat column shows as early Telychian
Age Span:
Beginning stage:
Telychian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
438.59
Ending stage:
Telychian
Fraction up in the ending stage:
0.25
Ending date (Ma):
437.18
Depositional setting
Depositional pattern:
Additional Information
Compiler:
From Geological Formation Names of China (1866-2000); Springer Publ.