克拉通化
- 网络cratonization
-
中朝板块克拉通化的Rb-Sr年代
RB - Sr chronology of cratonization of Sino-Korean plate
-
北京西山周口店关坻杂岩蒸发法锆石Pb-Pb年龄:太古宙成因和克拉通化事件证据
Single-Grain Evaporation Zircon Pb-Pb Ages of Guandi Complex , Zhoukoudian Area , Western Hills of Beijing : Archaean Genesis and Cratonization Events of the North China Craton
-
而且发生在1850Ma的地质事件是汇聚而不是裂解,吕梁造山使华北陆块真正克拉通化。
The geological event that took place at 1850 Ma was convergence rather than breakup .
-
韧性剪切在太古代末期克拉通化过程中具有加厚陆壳的作用。
This means that ductile shearing played a role of crust-thickening du - ( ring ) the cratonization at the end of Archean .
-
不仅如此,大量研究实践表明,克拉通化阶段还提供了形成大规模有用矿产的有利条件,往往构成成矿作用高峰期。
Moreover , a host of research practices showed that the stage of cratonization provided favorable conditions for the formation of mineral products of huge size .
-
目的是借鉴克拉通化概念和研究问题的思路对碰撞后和陆内阶段的构造岩浆作用的规律做一讨论。
The aim of this paper is to approach the rules of tectonomagmatic actions after the collision and in the intercontinental stage on the basis of the conception of the cratonization .
-
矿石的铅同位素组成属正常铅,在构造演化图上,落在上地幔与造山带铅演化线之间的克拉通化地壳边部。
The lead-isotope composition belongs to normal lead which enters the area of cratonization earth crust in the structure evolution diagram of lead evolution curve between upper mantle and orogenic belt .
-
山东省区域地质构造演化分为5个阶段。①陆核形成阶段:形成太古宙高级区,地壳分异成稳定的花岗岩穹窿和活动的绿岩带,第一次克拉通化完成。
Regional geological structural evolution in Shandong province can be divided into 5 stages : ① nuclear area forming stage : Archaean high-grade area formed , crust differentiated into stable granite arch and active greenstone belts , and the first cratonization completed .
-
文中通过对文献的分析,并结合作者们自己的研究经验,回顾了克拉通化有关概念和理论的发生、发展,重点探讨显生宙以来形成的新大陆岩石圈的稳定化过程;
This paper reviews the appearance and the development of the conception and theory of the cratonization through the analyses of limited literatures and in the light of our own experience , and emphatically inquires into the process of stabilization of new continental lithosphere in the Phanerozoic eon .