magnetic basement 中文意思是什麼
magnetic basement
解釋
磁性基底-
Magnetic surveys are useful in oil exploration only for determining basement depths so as to cast light on the existence and geometry of sedimentary basins.
磁力測量在石油勘探中的用途僅僅是為了確定基底深度，以便查明沉積盆地的存在及其幾何形態。 -
The authors hold that the joint actions of numerous factors such as the upper mantle uplifted zone ( the mantle thinned zone of lithosphere ), the upper mantle anomalous area ( relatively low - velocity area ), the uplifted zone of intracrustal high - conductivity layer, the deep fault ( shear zone of lithosphere ), the margin of the crust - upper mantle uneven masses, the basement uplifted area reflected by gravity high, the magmatic belt and tectonic intersection reflected by skipped magnetic field, control the distribution of auriferous skarn deposits and copper ( associated with gold ) skarn deposits
作者認為，上地幔隆起帶（巖石圈地幔減薄帶） 、上地幔異常區（相對低速區） 、殼內高導層隆起帶、深斷裂（巖石圈剪切帶） 、地殼上地幔不均勻性塊體的邊緣、重力高反映的基底隆起區、跳躍磁場反映的巖漿巖帶和構造交匯處等諸多因素的共同作用控制著含金夕卡巖礦床和銅伴生金夕卡巖礦床的分佈。 -
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:本文全面系統地整理和分析研究了巴楚地區地震、重磁、電法、綜合測井、放射性測量等最新的綜合物化探資料，劃分出了該區中新生代沉積盆地基底的次級構造單元、盆地結構構造以及盆地基底巖性；查明了盆地蓋層的層序結構、埋深、厚度及空間展布；分析了蝕源區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律。
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