摘要
板块学说目前仍不能取代传统的槽-台-洼学说。两者均存在一定的优缺点,可相互补充,有些术语可找到对应的关系。从物质成分演化的角度来探讨地壳的演化更容易取得共同的语言。在地壳发展的不同阶段,各有一些特征指示元素,这里特别阐明了K,F和稀土元素对地壳演化的指示作用。
Up to the present, plate-tectonic theory still cannot replace the traditional theories of geosyncline, platform and Diwa, because there are virtuesand defects on either party, and they can complement each other. Some oftheir technical terms may find equivalents in the other parties. In order toacquire common language more easily, the writer suggests to investigate theevolution of the earth crust from the viewpoint of material evolution. Inthe different stages of development of the earth crust, there are several ty-pical indicator elements and the writer particularly describes in detail theindication of the earth crust eyolution by the distribution of potassium, fluo-rine and the rare earths.
关键词
地壳
演化
地球化学
板块学说
地槽
earth crust evolution
geochemistry
plate-tectonic theory
goosyncline
platform
Diwa
potassium
fluorine
rare earths
