Tianzhu Peak
Pubdate:4/25/2015 SaturdayCategory:Introduction of Geosites

 Tianzhu Peak, the main peak of Tianzhushan, so named for its resemblance to a towering pillar, is a bornhardt or mountain-island which is composed of medium-grained monzonitic granite from the early Cretaceous period (128 million years ago). Since the vertical and diagonal joints are well-developed and intersected with each other on granite, deep weathering happens, which causes the disintegration and collapse of the rock mass, eventually forming the pillar-like peak. The peak is erect in the center but slightly outward-inclined on the periphery.


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