Data of experimentally deformed saw-cut Carrara marble across the Brittle-Ductile Transition

The data set contains original axial displacement and internal force data and corrected stress-strain data for all 17 saw-cut Carrara marble, which were deformed in triaxial compression at temperatures of 20 – 600°C, confining pressures of 30 – 150 MPa, and constant axial strain rate 1x10-5 s-1, and also other relevant data of the figures in the paper. Depending on the applied conditions, which are nominally in the semi-brittle deformation regime of solid Carrara marble, we observed the complete spectrum of natural faulting, stable fault sliding, unstable stick-slip, and bulk deformation with locked fault. The experiments were conducted in the Experimental Rock Deformation Laboratory of the GFZ German Research Centre for Geosciences in Potsdam, Germany. The experimental conditions are listed in Tab. 1.

Table 1: Experimental conditions
Sample no. ß(°) T(°C) P(MPa)
CMSC04 46 20 30
CMSC06 40 20 50
CMSC07 42 20 100
CMSC03 40 20 150
CMSC20 41 100 30
CMSC15 40 200 30
CMSC19 40 200 50
CMSC12 41 300 30
CMSC10 42 300 50
CMSC18 41 300 70
CMSC09 42 300 100
CMSC02 41 300 150
CMSC17 40 400 30
CMSC16 41 400 50
CMSC21 43 500 30
CMSC22 40 500 50
CMSC08 42 600 30

本数据集收录了17块萨瓦纳大理石在轴向位移和内部力原始数据，以及经过校正的应力-应变数据。这些大理石样本在20至600°C的温度、30至150 MPa的围压和恒定的轴向应变率1x10^-5 s^-1条件下，进行了三轴压缩变形。此外，数据集还包括了论文中图表的其他相关数据。根据所施加的条件，这些条件通常处于固体萨瓦纳大理石的半脆性变形区域，我们观察到了完整的自然断层、稳定断层滑动、不稳定粘滑和带锁定断层的整体变形谱。实验在德国波茨坦的GFZ地球科学研究中心的实验岩石变形实验室进行。实验条件详见表1。