基于SEM图像的分形维数与泥岩颜色关系--以崆峒山国家地质公园白垩系斑马状泥岩为例  

Relationship of mudstone color and fractal dimension based on SEM Image:a case stuty of the Cretaceous zebra mudstone in Kongtong Mountain National Geopark

作　　者：谭之东 梁收运[1] 周自强[2] 白晓华[2] 柯雨田 TAN Zhi-dong;LIANG Shou-yun;ZHOU Zi-qiang;BAI Xiao-hua;KE Yu-tian(Key Laboratory of Mechanics on Disaster and Environment inWestern China,Ministry of Education,Lanzhou University,Lanzhou 730000,China;Geological Hazards Prevention Institute,Gansu Academy of sciences,Lanzhou 730000,China)

机构地区：[1]兰州大学西部灾害与环境力学教育部重点实验室,兰州730000 [2]甘肃省科学院地质自然灾害防治研究所,兰州730000

出　　处：《地质调查与研究》2018年第2期153-160,共8页Geological Survey and Research

基　　金：国家重点基础研究发展计划(973计划)“黄土重大灾害及灾害链的发生、演化机制与防控理论”子课题“黄土水-土相互作用及其互馈致灾机制(2014CB744701)”

摘　　要：采集崆峒山白垩系斑马状泥岩样品,通过扫描电镜(SEM)结合Matlab软件处理技术和色差测量,得到了不同颜色泥岩样品的颗粒分布分形维数、表面灰度信息维数以及颜色参数值Lab。研究结果表明,赤灰与绿灰色为主的泥岩(取样剖面上部)的分形维数最小,灰绿色为主的泥岩(剖面中部)的分形维数最大;颜色越偏红、偏黄、偏亮,其分形维数越小;颜色量化值Lab与分形维数呈负相关。The Cretaceous zebra-like mudstone samples from Kongtong Mountain was collected.Using scanning electron microscope(SEM)with Matlab software processing and color-difference measurement,the partical distribution fractal dimension,the gray information dimension and Lab values of mudstone samples were obtained.The results show that the fractal dimension of red-gray and gray-green mudstone(the upper section of sampling section)is the smallest,and the gray-green mudstone(middle section)has the largest fractal dimension.The more reddish,yellowish,the smaller the fractal dimension.Quantified values Lab of the color are negatively correlated with the fractal dimension.

关 键 词：泥岩 颜色 分形维数 SEM图像 崆峒山 

分 类 号：P585[天文地球—岩石学]