摘要
近十多年来,人们已认识到大多数花岗岩浆的发育和演化受对流地幔(软流圈)物质向岩石圈地壳输入作用过程的制约,开创了把壳-幔相互作用研究与花岗岩形成演化紧密结合的新方向,这个新的研究方向的科学前沿主要是花岗岩形成与大陆生长和深部过程的关系;花岗岩形成的深熔作用和热源以及花岗岩的成因类型与构造环境。这些研究试图从大陆生长及大陆动力学的层次去认识花岗岩成因,以期建立起一个它们之间相互关联的框架,并进一步通过这一框架追索它们形成时热能传递的机理及其体制。因此,研究花岗岩不仅可以获得花岗岩物质来源和构造环境的信息,而且可以获得对流地幔(软流圈)物质向岩石圈地壳输入作用过程导致的壳幔物质运动的状态、过程、动力学等问题的本质、深部能量(热能)的传导、转化的重要信息。探索和解译这些信息,对于认识大陆生长具有纲举目张的作用,是解决当今大陆地质演化,建立大陆动力学关键问题之一,是继花岗岩物质来源、构造环境研究的花岗岩研究的第三个里程碑,对传统花岗岩成因观点提出了挑战,因而具有重要的科学意义。
In last ten years, people are cognized that formation of granitic magma and their evolution is controlled by the process of asthenospheric upwelling and lithosphere mantle acting, and inaugurate a new direction that combine closely crust-mantle interaction with granitic magma formation and evolution. The scientific front of this new direction primarily is the relationship between granite formation and continent growth and deep process of lithosphere; and the granite anatexis with hot source and granite type and tectonic environment. These fronters try to cognizant the granite genesis from the level of continent growing and the continent dynamics, and hope to establish a associated frame between them, and through this frame further to trace their mechanism and region that thermal energy deliver when they formed. Therefore, study the granite can not only provides the information of granite material source and construct environment, hut also can acquire the important information about the innate character of crust-mantle material sport appearance, process, dynamics.., etc. problems, and deep a conduction and convection of energy （thermal energy）. Study and translate these information can take on the function of lucid exposition of essential points for cognizing the continent growth, and is one of the key problems for resolving the nowadays continent geology evolution, establishing the continent dynamics. It can he regard as the beginning of the third milestone about granite research after the granite material source, the tectonic environment research, as a result have the important strategy meanings.
出处
《地质论评》
CAS
CSCD
北大核心
2007年第B08期17-27,共11页
Geological Review
