Elastic Contrast, Rupture Directivity, and Damage Asymmetry in an Anisotropic Bimaterial Strike-Slip Fault at Middle Crustal Depths

The data files here have been used in Song et al. (2022, Journal of Geophysical Research, https://doi.org/10.1029/2021JB023821). Ten Excel files and one zipped file (EBSD and synthetic data) are provided. (1) One shows single-crystal stiffness tensors of quartz, plagiolcase, biotite (phlogopite), and muscovite. Three show (2) homogenized stiffness tensors, (3) 3D min and max velocities and anisotropies, and (4) 2D velocities and contrasts in the x1-x2 plane, for the natural and synthetid QF (quartzofeldspatic) and schist host rocks in the Sandhill Corner fault/shear zone, Maine, USA. (5) One is the source file to generate Table S2 and Figure 8 of Song et al. (2022), comparing the seismic properties of the Sandhill Corner shear zone to other published studies. The other five Excel files are from the sensitivity analysis on mica content using synthetic microstructures, which include (6) homogenized stiffness tensors, (7) 3D min and max velocities and aniostropies, (8) 2D velocities in the x1-x2 plane, (9) 2D velocity contrasts at azimuth=0 relative to the synthetic QF rock, and (10) 2D velocity contrasts at azimuth=0 relative to the natural QF rock. The zipped file contains all the EBSD and synthetic data (Euler angles, x-y coordinates, and phase ID) to compute seismic properties using TESA Toolbox.

本数据集文件已被用于Song等人（2022年，《地球物理研究杂志》，https://doi.org/10.1029/2021JB023821）的研究。本次共提供10个Excel文件与1个压缩文件（内含电子背散射衍射（Electron Backscatter Diffraction, EBSD）与合成数据集），各Excel文件详情如下：
(1) 首个文件包含石英、斜长石、黑云母（金云母）及白云母的单晶刚度张量。
(2) 第二个文件为均质化刚度张量数据集。
(3) 第三个文件涵盖美国缅因州Sandhill Corner断层/剪切带内天然与合成石英长英质（Quartzofeldspathic, QF）岩石及片岩围岩的三维最小、最大波速与各向异性数据。
(4) 第四个文件包含上述区域天然与合成石英长英质岩石及片岩围岩在x1-x2平面内的二维波速与波速差数据。
(5) 第五个文件为生成Song等人（2022年）补充表S2与图8的源文件，该内容对比了Sandhill Corner剪切带的地震属性与其他已发表研究的相关结果。
(6)-(10) 剩余五个Excel文件来自基于合成微观结构的云母含量敏感性分析，具体内容分别为：(6) 均质化刚度张量；(7) 三维最小、最大波速与各向异性；(8) x1-x2平面内的二维波速；(9) 相对于合成QF岩石、方位角为0°时的二维波速差；(10) 相对于天然QF岩石、方位角为0°时的二维波速差。
该压缩文件包含所有可通过TESA工具箱（TESA Toolbox）计算地震属性的EBSD与合成数据集，具体包括欧拉角、x-y坐标及相ID。