| Alluvial fan | Mid-fan | Directional arranged gravels in
braided channels | Well Qianlishan
and Well J12 | North margin of Ordos area, north of Wuhai, Ordos, north margin of North China area (speculated) |
Alluvial plain
river | Braided river | Retained channel mud gravels, channel bar (sand bar) with gravel-bearing coarse sandstone, tubular and trough cross-bedding, flood plain mudstone, high sand-mud ratio and scarce plant fossils | Well Hulustai, Well Shibangou, Well Yangquangou and
Well S6 | North of North China, south of Wuhai, Ordos, Datong, Beijing and Jinzhou; West of Huanxian, Qingcheng and Pingliang in southwestern Ordos area |
| Flood plain |
| Meandering river | Retained channel mud gravels, point bar with lateral accretion, topset mudstone, with a binary structure, thin and fine alluvial sand bodies, ripple lamination, and alluvial lake deposits composed of thick dark mudstone and sandy mudstone. | Well Dongheishan, Well Xuefengchuan, Well Taitou, Well
LA1, Well NT
1 and Well CH2 | North-central North China, south of
Taiyuan, Shijiazhuang and Tianjin;
Qingcheng, Yichuan and Hancheng
in the south-central Ordos area |
| Overflow flat |
| Interchannel overflow lake |
| Delta | Delta plain | Medium sandstone of distributary channel
with parallel bedding, mudstone of
interdistributary depression | Well Hebiliang,
Well Dafengkou
and Well Qg2 | Jincheng, Handan and Jinan
in south-central North China |
Coastline
Plain | Tidal flat
(associated with delta front) | Alternated sandstone and mudstone,
and argillaceous sandstone with
ripple cross-lamination | Wells Huainan
and Bs2 | Pingdingshan, Xuzhou and Huainan
in the south of North China |
| Lagoon | Black carbonaceous shale | Pingmu and Huainan |
| Coastal swamp | With coal streaks, thin coal seams and
abundant plant fossils | Huainan and
Pingdingshan |