Shujiaping Fm
Type Locality and Naming
The type section is located at a trench between Longdongshui and Shuijiaping villages, 10 km east of Dushan County of Guizhou Province (107o40’E-25 o49’N). It was named by Wang Yu and others in 1964.
Synonym: Sujiaping Fm, Shuijiaping Fm (spelling versions)
Lithology and Thickness
Fine-grained sandstone. The Formation, 79 m thick, grayish-white fine-grained sandstone and siltstone intercalated with thin-bedded purplish-red iron-bearing quartz sandstone, and a few beds of calcareous siltstone and black carbonaceous shale. The internal structures are well preserved parallel bedding and cross-stratification with low and medium angular dips. In the base there is a bed of oolitic hematite and sandstone bearing-gravels, of which the gravels are composed of quartz, black chert and claystone, 0.5-2 cm in size.
Relationships and Distribution
Lower contact
It rests conformably on the Danlin Fm with a bed of pebbly sandstone near its base.
Upper contact
the upper contact is conformable with the overlying Longdongshui Fm separating by a massive limestone.
Regional extent
GeoJSON
Age
Depositional setting
It is interpreted as a tidal flat and nearshore facies.
Additional Information