Home Multi-Country Search About Admin Login
Cenozoic
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
Neoproterozoic
Mesoproterozoic

Search by
Select Region(s) to search
Hold Ctrl (Windows/Linux) or Command (Mac) to select multiple
Duodaoshi Formation

Duodaoshi Fm

Period: 
Neogene

Age Interval: 
Late Miocene (Messinian), N1 (21a)


Province: 
Hubei

Type Locality and Naming

Jianghan Basin - NW. The Hubei Jianghan Comprehensive Petroleum Geology Research Unit in 1961 firstly used this name in its unpublished manuscript. According to Bureau of Geology and Mineral Resources of Hubei Province (BGMRH(Hubei)P) (1996), its type section is located at the Tuanlinpu section (E112°11′, N30°52′), Jingmen City, Hubei Province. It was formally published by the Bureau of Geology and Mineral Resources of Hubei Province (BGMRH(Hubei)P) (1990).


Lithology and Thickness

The Duodaoshi Fm consists of a series of greyish-white, ceramic white, and light flesh-red marlstones with greyish-green mudstones. Its bottom is formed by greyish-white gravels with small amount calcareous siltstones. The Duodaoshi Fm contains mammalian fossils. Its thickness is in range of 40~80 m.


Lithology Pattern: 
Continental marl


Relationships and Distribution

Lower contact

In the type section, the Duodaoshi Fm is in unconformable contact with the underlying Middle Eocene Pailoukou Fm.

Upper contact

In the type section, the Duodaoshi Fm is unconformably overlain by Quaternary deposits.

Regional extent

This formation is distributed to the edge of Jianghan Basin, such as Xiangyang, Gucheng, Yicheng, Zhongxiang, Jingmen, Yichang, Zhijiang, Hubei Province.


GeoJSON

null

Fossils

Mammals: Dicerorhinus ringstroemi, Dorcatherium progressus, Hipparion cf. H. ptychodus. (Yan, 1978).


Age 

Based on the fossil mammals, the age of the Duodaoshi Fm was considered as in Late Miocene (Yan, 1978). Dong, T., et al. (2019, Neogene Intergr. Strat. Timescale China, Sci. China: Earth Sci, 62) also assign it as regional Vallesian through Torolian stages (earliest Tortonian through Messinian).

Age Span: 

    Beginning stage: 
Tortonian

    Fraction up in beginning stage: 
0.1

    Beginning date (Ma): 
11.19

    Ending stage: 
Messinian

    Fraction up in the ending stage: 
1.0

    Ending date (Ma):  
5.34

Depositional setting

It is interpreted as a river-lake environment.


Depositional pattern:  

Additional Information


Compiler:  

Tao Deng, Sukuan Hou, J.Z. Qigao, Q. Li, Q.Q. Shi, B.Y. Sun, S.Q. Wang, F.X. Wu