摘要
戈枕韧性剪切带的变形过程中，岩石发生了体积亏损，产生了构造岩流体对岩石的浸滤作用，导致岩石中ＳｉＯ２和碱质的流失；随变形作用的加强，岩石中轻稀土元素的含量显著降低，轻、重稀土元素间发生了一定的分馏作用．另外，构造环境的变化不仅直接控制着包裹体气液成份的变化，而且使包裹体的氢、氧同位素，岩石的硫。
Study on the Gezhen ductile shear zone shows that deformation caused the volume loss of all rocks in shear zone,induced leaching of tectonitic fluids to rocks and also induced the loss of SiO 2 and alkaline in rocks;with the increasing of deformation intense,light REE in rocks decreased,and also the diffraction between LREE and HREE occured.Changes of tectonic environment not only controlled the changes of chemical composition of inclusion,but also caused the differentiation of H、O isotopes in inclusion and the differentiation of sulphur and lead isotopes in rocks.
基金
国家自然科学基金青年基金
关键词
戈枕韧性剪切带
构造地球化学
金矿
Gezhen ductile shear zone
volume loss
tectonitic fluid
tectono geochemistry
