底岩 meaning in English

bed rock
bedrock
bottom stone
hard seat
seat rock
shelf
subterrane
underlying rock

The lower zone and the bronzite of the transition zone may be compared with the basal zone of the still-water complex .
下岩带和过渡带的古铜辉岩可与斯蒂尔沃特杂岩的基底岩带相比。
Abstract : on the basis of systematic synthesis , and study on the recent comprehensive geophysical - geochmical data , such as seismic , gravimetric , magnetic , electric , comprehensive logging , radiometric survey , this paper divides the second - order tectonic units of the basement of mezo - cenozoic sedimentary basins , the structure and basement lithology of sedimentary basims , and ascertains the sequential structre , occurrence depth , thickness and spatial distribution of the basin cover , and analyses the uranium source condition of the basement and provenance area , and the uranium content of cenozoic strata , as well as the mobilization and migration of uranium in cenozoic cover
文摘:本文全面系统地整理和分析研究了巴楚地区地震、重磁、电法、综合测井、放射性测量等最新的综合物化探资料，划分出了该区中新生代沉积盆地基底的次级构造单元、盆地结构构造以及盆地基底岩性；查明了盆地盖层的层序结构、埋深、厚度及空间展布；分析了蚀源区和基底岩性的铀源条件和新生代地层的含铀性及铀的活化迁移规律。