中澳洲Florence剪切带中角闪石晶体优选定向(英文)

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中澳洲Florence 剪切带糜棱岩中的角闪石经晶内滑移变形而显示出良好的晶体优选定向,通过对角闪石岩组图的综合分析,并结合前人的实验资料,认识到在高温变形条件下角闪石的滑移系为(100)[001]。该剪切带中角闪石岩组图具不对称型式是与角闪石的单一滑移系和该滑移系的初始定向状态有关,是非共轴简单剪切变形的结果,这些不对称的岩组图可用于判断剪切带的运动方向 The amphiboles in the Florence shear zone mylonites show a good crystal orientation through intracrystalline slip deformation. Based on the comprehensive analysis of the diapirite groups and the experimental data of previous generations, The slip system of amphibole under high temperature deformation is (100) [001]. The asymmetric pattern of the hornblende assemblages in the shear zone is related to the single slip system of amphibole and the initial orientation state of the slip system, which is the result of simple non-coaxial shear deformation. These asymmetric Rock maps can be used to determine the direction of shear band movement
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