Nanyanghe Fm
Period:
Ordovician
Age Interval:
Late Ordovician, (6)
Province:
Heilongjiang
Type Locality and Naming
Type section at Nanyanghe in Xinlin County, Heilongjiang Province. Named by Xie Guisheng et al., 1983, Explanatory Text for 1∶200 000 Scale Geological Map: Xinglonggou Sheet, Humazhen Sheet.
Synonym:
Lithology and Thickness
Gray, grayish yellow silty-bearing slate, with interbeds of arkose and tuffite
Lithology Pattern:
Sandy claystone
Relationships and Distribution
Lower contact
Regionally, the next older unit is the Dayixikanghe Fm
Upper contact
Regionally, the next younger unit is the Songmaoshan Fm
Regional extent
GeoJSON
null
Fossils
Age
Age Span:
Beginning stage:
Sandbian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
458.18
Ending stage:
Katian
Fraction up in the ending stage:
0.7
Ending date (Ma):
447.47
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Extracted from Geological Formation Names of China (1866-2000); Springer Publ.