Multi-phase deformation and analogue modelling of the Junggar Basin, NW China

作者：Jingqi Zhang, Fu-Sheng Yu, Yuefeng Wang, Zhuo-Yi Shen, Jinlei Xiu, Yan Xue, Long-Fei Shao · 发表于：Petroleum Science · 年份：2024 · DOI：10.1016/j.petsci.2024.06.018 · 被引用次数：6 · 研究领域：Geological and Geochemical Analysis、Hydrocarbon exploration and reservoir analysis、Geological and Geophysical Studies

Based on the theory of superimposed deformation and the regional tectonic background, the multi-phase non-coaxial superimposed structures in Junggar Basin were systematically analyzed using seismic interpretation, field outcrop observation, and paleo-stress field recovery methods according to the characteristics of the current tectonic framework. Moreover, the tectonic evolution process of the basin was reconstructed using sandbox analogue modelling technology. The results showed that the study area has experienced five phases of non-coaxial deformation with superimposition: The first phase of deformation (D1) is characterized by NNE-SSW extension during late Carboniferous to early Permian, which formed large graben, half graben and other extensional structure style around the basin. The second phase of deformation (D2) is represented by NE-SW compression during the middle to late Permian, and it comprised numerous contraction structures that developed based on D1. The basic form of the entire basin is alternating uplift and depression. The third phase of deformation (D3) is the NW-SE transpressional strike-slip in the Triassic-Jurassic, which produced numerous strike-slip structural styles in the middle part of the basin. The fourth phase of deformation (D4) is the uniform sedimentation during Cretaceous, and the fifth phase (D5) is the compression along NNE-SSW due to the North Tianshan northward thrust, which produced three rows of fold thrust belts and tear faults in the ...