crustal spreading

基本解释

The model of granitoid magmas emplacement and crustal extension in mid or deep crust likes that of mid ocean ridge mafic magmas emplacement and oceanic spreading exactly.
这种大陆壳内中深部花岗质岩浆的侵位和地壳的侧向伸展的模式，与有些学者提出的大洋中脊玄武质岩浆的侵位和洋壳扩张的模式是基本相似的。
According to the evolution properties of ocean spreading and consuming, a preliminary scheme is sugested for the evolution and progressive replacement of the crustal tectonic elements.
以及根据大洋扩展与消亡演化特点，对地壳大地构造单元演化和更替递进模式的初步设想。