Tarma Fm
Period:
Carboniferous
Age Interval:
C11 (), Tournaisian (early Early Carboniferous)
Province:
Xizang (Tibet)
Type Locality and Naming
The type section is located at Tarma, about 40 km southeast of Mujiuco, and about 70 km southeast of Xianza County, Tibet. It was named by Wang Wenbin in 1957.
Lithology and Thickness
Limestone. Light-gray moderately thick-bedded limestone, intercalated with thin-bedded dolomitic limestone; ~1200 m thick.
Lithology Pattern:
Limestone
Relationships and Distribution
Lower contact
Unknown: Its relationship with the underlying stratum is unclear because bottom is incompletely exposed.
Upper contact
Conformable contact with the overlying Shalonglieting Fm = previous "Orphan"
Regional extent
Distributed around Tarmar and Yunzhug Township of Xianza County as well as Wenbu of Gyêwa County
GeoJSON
null
Fossils
Age
Tournaisian (early Early Carboniferous)
Age Span:
Beginning stage:
Tournaisian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
359.30
Ending stage:
Tournaisian
Fraction up in the ending stage:
1.0
Ending date (Ma):
346.73
Depositional setting
It is interpreted as platform neritic deposits
Depositional pattern:
Additional Information
Compiler:
Fan Yingnian