断层粗糙度在不同尺度上的表征：三维高分辨率地形测量的意义
Characterization of Fault Roughness at Various Scales: Implications of Three-Dimensional High Resolution Topography Measurements
摘要：
准确描述活动断层表面的地形是一个重要的地球物理问题，因为这种地形与沿断层面的应力分布密切相关，因此与地震成核、传播和停止过程密切相关。随着光探测和测距（LIDAR）设备的最新发展，现在可以在现场和实验室规模上精确测量粗糙表面的3D形貌，在各个方向上具有可比的分辨率。在本研究中，我们已经调查了两个天然断层面（Vuache走滑断层，法国，和Magnola正断层，意大利）在石灰岩中的几个露头的标度特性，包括可能的各向异性特性。
英文摘要：
Accurate description of the topography of active faults surfaces represents an important geophysical issue because this topography is strongly related to the stress distribution along fault planes, and therefore to processes implicated in earthquake nucleation, propagation, and arrest. With the recent development of Light Detection And Ranging (LIDAR) apparatus, it is now possible to measure accurately the 3D topography of rough surfaces with a comparable resolution in all directions, both at field and laboratory scales. In the present study, we have investigated the scaling properties including possible anisotropy properties of several outcrops of two natural fault surfaces (Vuache strike-slip fault, France, and Magnola normal fault, Italy) in limestones.
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