Keketiekedaban Fm
Type Locality and Naming
It was named by Zhang Zhongxiu et al.(1971). The naming locality is Keketiekedaban of Hejing County, Xinjiang Uygur Zizhiqu. The type section was not designated when the formation was named. The Bureau of Geology and Mineral Resources of Xinjiang Uygur Zizhiqu(1997) designated a lectotype section nearby the Kule Lake (82°23'30"E, 42°34'05"N).
Synonym: (科克铁克达坂组）
Lithology and Thickness
The formation is dominated by grayish black thin-bedded limestone, interbedded with clastic rocks, volcanic clastic rocks. The thickness of this formation is changing from 307 m to 1655 m.
Relationships and Distribution
Lower contact
It conformably contacts with the underlying Yicekebash Gr
Upper contact
It conformably contacts with the overlying Artankors Fm
Regional extent
It is exposed incomplete, either the top or the base, even both the top and the base are covered in its distribution areas. It is dominated by dark marbles in the upstream of the Muzalte River at the west of Halk Mt. The thickness in this area is 1060 m. It is up to 1990 m at the Muzalte River and Tulasubing River area. It is dominated by grayish black thin-bedded limestone at south of Tielimaitidaban along the Duku road. The thickness of this formation is 1450 m at this area. While at the north of Tielimaitidaban, the lithology is changed to thin bedded limestone intercalated with clastic rocks.
GeoJSON
Fossils
The formation bears abundant corals Favosites sp., Mesofavosites sp., Dictyofavosites cf. Baichengensis, Squamefavosites sp., Alveolites sp., Multisolenia sp., Tryplasma sp., and Zelophyllum sp., etc., brachiopods Proreticularia sp., Gypidula sp., Howellella sp., and Atrypa sp., etc., and stromatoporoid Amphipora? sp.
Age
Depositional setting
Additional Information