Kangshan Fm
Period:
Silurian
Age Interval:
the Aeronian of Silurian (S1); (65, 66)
Province:
Zhejiang
Type Locality and Naming
It was named by the Zhejiang Party of Regional Geological Survey (1966). The type section is at Kangshan, Anji County in northwest Zhejiang Province (the Zhejiang Bureau of Geology and Mineral Resources, 1989).
Synonym: (康山组)
Lithology and Thickness
The formation, 2073 m in thickness at the type section, consists of yellow green, grayish white and occasionally purplish red silty pelite, siltstone and micritic sandstone.
Lithology Pattern:
Sandy claystone
Relationships and Distribution
Lower contact
The Kangshan Fm is conformably underlain by the Dabaidi Fm
Upper contact
The Kangshan Fm is conformably overlain by the Tangjiawu Fm
Regional extent
It can be observed mainly in northwest Zhejiang Province.
GeoJSON
null
Fossils
It is extremely rare in fossils, and the only finds include fish fragments and brachiopod Lingula.
Age
Age Span:
Beginning stage:
Aeronian
Fraction up in beginning stage:
0.45
Beginning date (Ma):
439.64
Ending stage:
Aeronian
Fraction up in the ending stage:
1.0
Ending date (Ma):
438.59
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Wang Chuanshang and Wang Xiaofeng