基底 basalia; base course; base of foundation; basement rock; basement-cover relationship; basis; bm; body; floor; foundation base; foundation bed; fundamental complex; fundus; ground; infrastructrue; infrastructure; planting; radical; radix; su trate; subbottom; subbase; substrate; substratum
The lower zone and the bronzite of the transition zone may be compared with the basal zone of the still-water complex . 下巖帶和過渡帶的古銅輝巖可與斯蒂爾沃特雜巖的基底巖帶相比。
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:本文全面系統(tǒng)地整理和分析研究了巴楚地區(qū)地震、重磁、電法、綜合測井、放射性測量等最新的綜合物化探資料,劃分出了該區(qū)中新生代沉積盆地基底的次級構(gòu)造單元、盆地結(jié)構(gòu)構(gòu)造以及盆地基底巖性;查明了盆地蓋層的層序結(jié)構(gòu)、埋深、厚度及空間展布;分析了蝕源區(qū)和基底巖性的鈾源條件和新生代地層的含鈾性及鈾的活化遷移規(guī)律。