RESEARCH ON THE ARGILLANCEOUS CEMENT OF SANDSTONE AT LONGYOU GROTTOES

By means of petrographic microscopic observation, X-ray diffraction(XRD) qualitative and quantitative analysis,scanning electron microscopy(SEM) as well as differential thermal analysis(DTA),this paper describes the cementation characteristics of sandstone at Longyou Grottoes in Zhejiang province which will provide scientific basis for our study on weathering process and preservation measures of the project mentioned above.