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通过对华力西期花岗岩构造的系统测量、相关显微构造的观测及详细的重力研究,对于华力西期Mortagne花岗岩侵入体的侵位机制、运动学及三维几何形状进行了解释。本文提出岩浆充填于NW-SE向左旋剪切带转折部位产生的拉分构造中。与侵位作用无关的第二期右旋剪切作用形成了花岗岩体边缘构造。联系Mortagne深成体的侵入时代(313±15Ma),对已证明为法国西部华力西期的相继发生的运动方式相反的两次剪切运动进行了讨论。
Through systematic surveys on the structure of the Holocene granite, observations of related microstructures and detailed gravimetric studies, the emplacement mechanism, kinematics and three-dimensional geometry of the granitic intrusions in the Waleixian period were explained. In this paper, we propose that the magma filling in the NW-SE turning point of the left-lateral shear zone generated in the division structure. The second phase of right-lateral shearing, which has nothing to do with emplacement, formed the marginal structure of granite. In connection with Mortagne’s deep-body invasive age (313 ± 15 Ma), two shearing movements that have been shown to be the opposite of the successive movements of the Warisian period in western France are discussed.