lower crust

常見例句

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，下地殼的成分接近于玄武巖，而上地殼的物質(zhì)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(jié)構(gòu)與演化研究一直是地球科學(xué)研究中為人們關(guān)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(xué)、稀土元素和同位素特征指示出老灣花崗巖源于下地殼經(jīng)部分熔融作用形成。