Shexing Fm

South Lhasa Block - Linzhou Basin. The Shexing Formation was erected by Wang Naiwen et al in 1983. The section for the designation is to the southeast of the Shexing Village south of Maqu of the Doilungdêgên County, Xizang. The reference section is in Dianzhong-Nama and Liangang- the breeding stock farm of the Lhunzhub County, Xizang (Wang Sien et al, 1989).

[Figure: Shexing Formation in type section at Shexing Village south of Maqu of Doilungdêgên County]

The Shexing Formation is mainly represented by purple, purple red, gray purple, gray and gray green siltstone, mudstone, shale, silty mudstone and shale and fine sandstone with thin-bedded limestone. The Shexing Formation is 981.4 m thick.

None listed

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Fossils:

In the Lhunzhub area, the upper part of the formation bears ostracods Altanicypris aff. bispinofera, Scabriculocypris ?ingenicus, Cypridopsis aff. bugintsavicus, etc.; and sporopollen grains Retitrilcopites geogensis, Tricopites spp., Cyathidites minor, C. australis, Undulatisporites spp., Piceaepollenites spp., Densiosporites spp., Araucariacites spp., Classopollis spp., Cerebropollenites mesozoicus, Biredisporites spp., etc.