Status of Zhijin Tiankeng Group in Geomorphologic Landscapes of the Same Type in the World

(1)One of areas in the world with the highest tiankeng distribution density

Seven huge, medium and small tiankengs develop in the area of 42 km² on both sides of Qijiehe River with the distribution density of 0.17/km², which is one of areas in the world with the highest tiankeng distribution density, therefore it occupies an important position in the distribution of tiankeng groups both at home and abroad.

(1)          One of the tiankengs with the largest capacity in the world

At present, Dacaokou Tiankeng ranks the fifth among the tiankengs with the largest capacity in the world (larger than 25Mm³).

 (3)Perfect form, beautiful landscape and highly ornamental value

(2)          A good unique natural museum and natural experimental base for scientific research for karst tiankeng in the world.


Liuchonghe river
Xiaoluoquan
Daluoquan
Xiaocaokou
Dacaokou
Xiaochilong
Dachilong
Jiayandong Cave
Guanzhai
Xiaotuoluo
Zhijindong cave
Xiahongyan
Legend
Normal fault
Reverse fault
Down-shift fault
Inferred fault
Anticlinal axis
Synclinal axis
Attitude of stratum
Stratigraphic boundary and code
Tiankeng
Highway
Rivers and flowing direction
Entrance and exit of underground river
 Diagram of Areal Geology in Development Area of Zhijin Tiankeng Group (according to He Wei, Li Bo, et al., 2011)

 Schematic Diagram of Zhijin Tiankeng Group Distribution

Daluoquan and Xiaoluoquan tiankengs
Qijiehe River
Sanjia
Dacaokou and Xiaocaokou tiankengs
Guanzhai
Jiayandong Cave Tiankeng
Liuchonghe River
Dachilong and Xiaochilong tiankengs

Dacaokou Tiankeng