摘要
有关岩浆花岗岩成因的原地重熔说，揭示了各种化学元素在内生过程中的迁移规律。据此并结合元素在周期表中的位置，得出了元素地球化学场的概念。元素地球化学场不但总结了元素在原地重熔过程中的聚散趋势，而且揭示了元素自身组构与其空间分布规律的关系，展示出三个不同层次的地质断面，即花岗岩体上部和顶部盖层断面、大陆地壳断面及地球球体断面。此外，元素地球化学场还揭示了大陆物质的循环过程，并清楚地表明，壳内融熔是大陆地壳形成和演化的关键环节。
The In-situ,Melting hypothesis relevant to the genesis of granite has revealed the concentration and dispersion trends of the various chemical elements in the endogenic process. The concept of Geochemical Field of the Elements is derived from the point mentioned above and the locations of the elements in the periodic table. Geochemical Field of the Elements, which not only sums up the concentration-dispersion trend of elements in the in-situ melting process, but also unravels the relation between their configuration and distribution in place, exhibits three cross sections, namely the cross section of a granite body and its exocontact zone, of the continental crust and of the globe. Besides, Geochemical Field of the Elements also displays the cyclic process of continental material, and clearly shows that melting within the crust is a key link in the formation and evolution of the continental crust.
出处
《地球化学》
CAS
CSCD
北大核心
1998年第6期566-574,共9页
Geochimica
基金
高等学校博士点专项科研基金
国家教委重点基金
关键词
元素地球化学场
重熔界面
地球层圈结构
in-situ melting, geochemical field of the elements, melting interface,continental material cycle, shelled or layered structure of the earth
