拆沉作用

另一类由玄武质岩浆底侵下地壳时发生部分熔融或下地壳拆沉作用成因（C型）。

The C-type adakite is formed by the partially melting of basaltic lower crust under the continental accretion setting or the delamination of lower crust .

下地壳拆沉作用及大陆地壳演化

Lower crustal delamination and evolution of continental crust

拆沉作用则是引起中生代早期岩石圈减薄的主要机制。

The delamination could be a major mechanism to result in the thinning of lithospheric mantle in the Early Mesozoic .

根据官地岩体的上述特征以及岩浆起源的构造热体制条件，本文提出了一个“部分拆沉作用”模型。

We brought forward the model of " partial delamination ", according to the GD above characteristics and tectonic thermo-system conditions of magma genesis .

拆沉作用不仅可以解释高原的减薄，而且可以解释新生代玄武岩喷发和中国东部盆地的形成。

The delamination may be also responsible for the eruption of basalts and formation of basins in the eastern part of China during Cenozoic .

滁州火山岩的地球化学及岩浆演化特征不支持岩石圈整体拆沉作用模型，岩浆应形成于岩石圈由下至上逐渐减薄的背景下。

Characteristics of geochemistry and magma evolvement could not support lithosphere whole detachment model , however magma should be formed under this setting of lithosphere thinning gradually from top down .

燕山晚期岩石圈快速减薄（如拆沉作用），造山带拉伸塌陷，地壳深处并发生广泛的底侵作用；

Episode of fast thinning ( e.g. , delamination ) of the lithosphere , in company with extension and collapse of the orogenic belt and magma underplating in the lower crust during later Yanshanian ;

已发表的关于东部岩石圈减薄的机理有拆沉作用、幔柱构造等模式，均与造山带的演化相联系。

There have been many models suggested , such as delamination , mantle-root structure etc , for the mechanism of thinning of the eastern lithosphere , all are related to the evolution of orogenic belt .

现在流行的按密度差、温度差建立的地幔对流、拆沉作用、地幔柱理论，阐明不了中国大陆岩石圈、大陆造山带的组成、结构与演化。

Current theory of mantle convection and delamination and mantle plume proposed on the basis of the difference in density and temperature is poorly accepted and is unable to explain the composition , structure and evolution of continental lithosphere and continental orogen of China .

4）俯冲板片拆沉并导致岩浆作用活动阶段（～400Ma）。

4 ) delamination of subducted slab and the eruption of the magma ( 400Ma ) .