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26-Triangular facet

2015-03-25 20:34 | Author:gzzjd | Reading:amount |

Triangular facet

Complete fault scarp is cut into many triangular fault scarps, which is called triangular facet.

The typical triangular facet in the geopark includes: walls of tiankengs, and the bared cliffs at both banks of Qijiehe River and Liuchonghe River.
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Evolution of fault scarp (according to Davis)

1. At the same time of the fault being occurred, huge fault scarp is formed; 2. Fault block mountainous is lowered due to denudation and the fault scarp is corroded to triangular facet; 3. Triangular facet lowers and goes backwards further to form round spur, but the spur is away from the fault for certain distance; 4. The fault block mountainous is razed and the triangular facet is disappeared.
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Sketch of Triangular facet
 

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