Research on the weathering products of the superficial rock of Dazu Shuchengyan,Chongqing
The statues of Shuchengyan Rock in Dazu were carved on a whole sand stone and are sheltered and protected by pseudoclassic architecture,but the rock surface,which is covered with a thick layer of dust,has begun to pulverize and peel off.With the help of analytical methods,including X-ray diffraction(XRD),X-ray florescence(XRF)spectrometry,scanning electron microscopy(SEM)and X-ray photoelectron spectrometry(XPS),it was found that the acid substances from dust and the dry deposition of harmful gas could destroy the calcareous cement.This,along with salt crystallization,has caused serious weathering of the rock surface.These research results provide an important reference for the protection of grottoes in southwest China.
Dazu Rock CarvingsShuchengyanCave templeRock weatheringCalcium sulfate
万方数据
维普
