Dak Lin Fm
Period:
Permian
Age Interval:
C3-P1dl, (22, 24)
Province:
South Trung Bo, Middle Trung Bo
Type Locality and Naming
Lithology and Thickness
Lithology Pattern:
Volcanics
Relationships and Distribution
Lower contact
The relation of the formation with the older units has not been observed. A major disconformity onto the Cu Brei Fm of early Devonian in the Middle Trung Bo region as indicated on the regional stratigraphic column.
Upper contact
It unconformably underlies the Lower Jurassic Dak Bung Fm in the type region. Regionally, the next younger units is the late Permian Chu Prong Fm volcanics
Regional extent
According to Tran Tinh et al. (1998) the formation is exposed in the areas of the Kon Turn - Buon Ma Thuot Sheet group, and in addition there are small exposures of the formation in the Suoi Cao area (SW Van Hoa Highland), and Hon Gom Isle.
GeoJSON
null
Fossils
Schwagerina sp., Pseudofusulina sp., Verbeekina sp., Parafusuiina sp., Bradyina sp
Age
Assigned as Late Carboniferous to Early Permian. [Regional stratigraphic summary chart suggests span of earliest Permian through middle Permian.
Age Span:
Beginning stage:
Asselian
Fraction up in beginning stage:
0.0
Beginning date (Ma):
298.89
Ending stage:
Wordian
Fraction up in the ending stage:
1.0
Ending date (Ma):
264.34
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Tran Van Tri and Vu Khuc (Editors; Geology and Earth Resources of Viet Nam, General Dept. of Geology and Minerals of Viet Nam; completed in Dec., 2011), with additional details from Tong-Dzuy Thanh and Vu Khuc (Editors; Stratigraphic Units of Viet Nam, 2nd edition; 2011; English edited by A. Boucot).