Guanshang Fm
Period:
Devonian
Age Interval:
Devonian
Province:
Yunnan
Type Locality and Naming
Name from Guanshang in Yinjiang County, Yunnan. Early Devonian (in book). First used by Yunnan Regional Geological Survey Team, 1982, Explanatory Text for 1:200 000 Scale Geological Map: Tengchong Sheet.
Lithology and Thickness
Alternating beds of slate, sandy limestone, bedded limestone and dolomite.
Lithology Pattern:
Basement
Relationships and Distribution
Lower contact
Shizishan Fm (conformably)
Upper contact
Unknown
Regional extent
Tengchong Block, SW of Yunnan.
GeoJSON
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Fossils
Age
Late Devonian
Age Span:
Beginning stage:
Emsian
Fraction up in beginning stage:
0
Beginning date (Ma):
410.51
Ending stage:
Eifelian
Fraction up in the ending stage:
0
Ending date (Ma):
394.30
Depositional setting
Depositional pattern:
Additional Information
Compiler:
James G Ogg & Wen Du – modified from Shouxin Zhang (main editor), Geological Formation Names of China (1866-2000), 2 volumes, Higher Education Press (2009); Lin Yaoming (main editor). (1990). Regional Geology of Yunnan Province. Yunnan Bureau of Geology and Mineral Resources, page 108.