lower crust

常见例句

In general, the composition of lower crust is close to basalt and the composition of upper crust is similar to granite.
一般來說，下地殼的成分接近於玄武巖，而上地殼的物質成分與花崗巖相似。
The composition, structure and evolution of the middle-lower crust has been an subject of extensive study in Earth sciences.
中下地殼組成、結搆與縯化研究一直是地球科學研究中爲人們關注的重要課題。
The lithochemistry, REE and isotope characteristic of strontium, oxygen and lead of Laowan granite show that the granite originates from lower crust by partial melting.
老灣花崗巖的巖石化學、稀土元素和同位素特征指示出老灣花崗巖源於下地殼經部分熔融作用形成。