摘要
贵州地区在二叠-三叠纪转折时期,位于康滇古陆的东缘,贵州上二叠统至下三叠统碳酸盐岩,硅质岩,碎屑岩等地层中普遍发育粘土岩,其中尤以P-T界线附近的粘土岩更引人关注^([1,2,3])。文章以贵州威宁岔河剖面P-T界线附近粘土岩为研究对象,采取扫描电子显微分析(SEM)手段,对其中的碎屑物质进行了初步研究,试图从探讨粘土岩成因这一角度揭示其地质学意义及对地基工程的影响。
During the transition of Permian to Triassic periods, the Guizhou area is located in the eastern margin of the KangDian ancient land. Clay rocks are commonly developed in the upper Permian to Lower Triassic carbonate rocks, siliceous rocks and clastic rocks in Guizhou. The clay rocks near the P-T boundary are of particular concern[1,2,3]. In this paper, the clastic materials in the clay rocks near the P-T boundary of the profile of Chahe River in Weining, Guizhou, were studied by means of scanning electron microscopy（SEM）. This paper attempts to reveal the geological significance of clay rock and its influence on foundation engineering from the point of view of discussing the genesis of clay rock.
出处
《科技创新与应用》
2018年第17期41-42,44,共3页
Technology Innovation and Application
关键词
粘土岩
扫描电镜
碎屑物质
火山作用
地基工程
clay rock
scanning electron microscope （SEM）
clastic material
volcanism
foundation engineering
