工程地质学报Issue(2)：279-286,8.DOI:10.13544/j.cnki.jeg.2015.02.013
北京房山大理岩的岩石学微观特征及风化机理讨论
MICROSCOPIC CHARACTERISTICS OF PETROGRAPHY AND DISCUS-SION ON WEATHERING MECHANISM OF FANGSHAN MARBLE IN BEIJING
摘要
Abstract
Marbles,quarried from Dashiwo town of Fangshan district in Beijing,are employed by many famous stone cultural relics in Beijing.Microscopic characteristics of petrography of white marble and greenish white marble are studied,using the methods of thin section microscopic observation,X-ray diffraction(XRD),X-ray fluorescence (XRF),scanning electron microscopy(SEM)and electron probe test.The fresh marble samples are taken from the quarry.The weathered samples are the debris of broken stones from the historic buildings.Results confirm that the main mineral of the marble is dolomite.Part of the marble contains quartz.Based on image processing software,the particle size distribution of the white marble and greenish white marble are calculated after statistical analysis.On this basis,the weathering mechanism of the marble is analyzed from the view of the temperature change,dissolution due to acid rain,water erosion and the salt crystals along microcracks.The above study can provide a scientific basis for restoration and protection of the marble cultural relics.关键词
石质文物/汉白玉/青白石/岩石学特征/风化机理Key words
Stone relics/White marble/Greenish white marble/Petrography characteristics/Weathering mechanism分类
建筑与水利引用本文复制引用
张中俭,杨曦光,叶富建,周华,张涛..北京房山大理岩的岩石学微观特征及风化机理讨论[J].工程地质学报,2015,(2):279-286,8.基金项目
北京市科技计划项目（Z121100000312002），中央高校基本科研业务费（2652013050），北京联合大学科研提升-竞争性项目资助． （）
