The effects of fault geometry and kinematic parameters on 3D fold morphology: insights from 3D geometric models and comparison with the Dushanzi anticline, China
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Author: Zhigang Li, Wei Chen, Dong Jia, Chuang Sun, Wenjun Zheng, Peizhen Zhang, Weitao Wang, Tao Li, Jianguo Xiong Corresponding author: Zhigang Li (lizhigang@mail.sysu.edu.cn); Wei Chen (chenweiswpi@163.com); Chuang Sun (sunchuang@mail.sysu.edu.cn) This supporting information includes the supplementary 3 figures and 6 tables. Figure S1. Uninterpreted petroleum seismic reflection across the Dushanzi Anticline. See the interpreted section in Figure 6. Figure S2. Perspective views of the layer and fault pointsets and models generated from the pseudo-3D forward geometric modeling using trishear 3D software and 3D structural modeling using GoCAD software. The model comprises five sedimentary layers (with layer height of 150, 175, 200, 225, and 250 units) and a fault surface. Contours of the top surface (layer 5, 250 units) are at intervals of 20 units. See the perspective view of the horizon and fault models in Figure 3, the plan view of the layer 5 in Figure 4. Figure S3. Perspective views of the horizon and fault picks and models generated from 3D seismic interpretation and field measures. The 30 m digital elevation model, five horizon layers (the base of Lower Cretaceous, Paleogene, Lower Neogene, Lower Pleistocene, and Holocene) and two fault surfaces (the Dushanzi and Halaande faults), and secondary fault scarps are indicated. See the final structural models of the Dushanzi Anticline in Figures 7 and 8. Table S1. The measured results of series A models when the fault ramp angles are increased from 10° to 30° with 2° step. Table S2. The measured results of series B models when the trishear angles are increased from 60° to 120° with 6° step. Table S3. The measured results of series C models when the P/S ratios are increased from 0 to 3 with 0.3 step. Table S4. The measured results of series D models when the shortening/fault length are increased from 0.05 to 0.15 with 0.01 step. Table S5. The measured results of series E models when the layer height/fault length are increased from 0.05 to 0.2 with 0.015 step. Table S6. The measured results of series F models when the displacement gradient angles are increased from 12.5° to 25° with 1.25° step.