Fault slip inversion data from the Mur-Mürz fault, Eastern Alps

The data set provides the results fault slip inversion analysis, which have been performed with the computer software WinTensor (Delvaux and Sperner, 2003). The raw data underlying these results have been collected during two field campaigns in the Eastern Alps in 2011 and 2013. The data table contains information on the sites where the data collection took place (longitude, latitude in WGS84 coordinate system) as well as results of Win-Tensor calculations including the orientation of the principle finite stress axes (σ1, σ2, σ3), the shape factor (R) and the deformation regime index (R’) (Delveaux et al., 1997). Furthermore, it is shown how many fault-slip data (N) the stress tensor calculation is based on and to which deformation phase as explained in the main text the tensor is related to. The remaining abbreviations include: Outcrop number (ID), dip direction (d.d.), Normal Faulting (NF), Transtensive Faulting (NS), Strike-Slip Faulting (SF), Transpressive Faulting (TS) and Thrust Faulting (TF). The stress regime for each data set is characterized by the stress regime index (R’), which provides a numerically continuous progression from 0-3, where 0 represents radial extension and 3 radial compression (Delvaux et al., 1997). R’ is based on the stress ratio (R), defined as (σ2 – σ3)/ (σ1 – σ3) (e.g. Angelier, 1989) such that R’ equals R for extensional stress regimes, equals 2 – R for strike-slip regimes and equals 2 + R for compressional regimes, respectively (Delvaux et al., 1997).

本数据集提供了断层滑动反演分析 (fault slip inversion analysis) 结果，该分析借助计算机软件WinTensor（Delvaux与Sperner，2003）完成。支撑该结果的原始数据采集于2011年与2013年在东阿尔卑斯山区开展的两次野外考察。本数据表包含数据采集点位的相关信息（采用WGS84坐标系的经度、纬度），以及WinTensor计算得到的各项结果，其中包括主有限应力轴（σ₁、σ₂、σ₃）的方位、形状因子（R）以及变形体制指数（R’）（Delvaux等，1997）。此外，数据表还标注了应力张量 (stress tensor) 计算所依赖的断层滑动数据量（N），以及该应力张量对应正文中所阐释的具体变形阶段。其余缩写的含义如下：露头编号（Outcrop number，ID）、倾向（dip direction，d.d.）、正断层（Normal Faulting，NF）、张扭断层（Transtensive Faulting，NS）、走滑断层（Strike-Slip Faulting，SF）、压扭断层（Transpressive Faulting，TS）以及逆冲断层（Thrust Faulting，TF）。每个数据集的应力体制由应力体制指数（R’）表征，该指数可在0至3的区间内呈现连续数值变化，其中0代表径向伸展，3代表径向挤压（Delvaux等，1997）。R’基于应力比（R）定义，即(σ₂ – σ₃)/(σ₁ – σ₃)（例如Angelier，1989），不同应力体制下的对应关系为：伸展应力体制下R’=R，走滑应力体制下R’=2–R，挤压应力体制下R’=2+R（Delvaux等，1997）。