Jiegutai Fm
Type Locality and Naming
It was named by Regional Survey Party of Liaoning Province in 1976. The naming section is located in the area of Longwang Temple till the Jiegutai Village southwest of Dadianzi Township, Tieling County, Liaoning Province.
Synonym: （皆古台组）
Lithology and Thickness
Lower part is composed of grey-brown conglomerate, intercalated with violet pebble-bearing sandstone. Middle part is mainly grey-black medium-grained sandstone, siltstone and shale intercalated with coal seams, locally with lenticular mineable thin coal beds. Upper part is largely of grey-brown conglomerate, intercalated with sandy shale, occasionally with thin coal beds, with a total thickness of the strata of about 151 m.
Relationships and Distribution
Lower contact
Its basal part is in an unconformable contact with the underlying Jingeryu Fm of the Qingbaikouan System.
Upper contact
Regionally, the schematic strat column indicates the next younger unit as Qianwanling Fm
Regional extent
It is distributed in a limited area, and is found to occur only in the Dadianzi Basin of Tieling County, with a thickness varying from 100 m to 300 m. The Dadianzi Basin of Tieling County is characterized by a good development of the Mesozoic strata with a special stratigraphic sequence, constituting a unique stratigraphic region, so local stratigraphic names should be reserved.
GeoJSON
Fossils
Age
Depositional setting
The formation belongs to intermontane-basin fluvial deposits, locally forming swamp-facies coal-bearing deposits.
Additional Information