Volume 40 Issue 2
Mar.  2021
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Zhang Lianjin, Huang Jiaqiang, Luo Qiang, He Yu, Yu Hao, Yang Rongjun, Liang Xiao, Zhou Zheng, Deng Bin. Analogue experiments for the Shuangyushi area in the north western Sichuan Foreland Basin and their implications[J]. Bulletin of Geological Science and Technology, 2021, 40(2): 156-166. doi: 10.19509/j.cnki.dzkq.2021.0214
Citation: Zhang Lianjin, Huang Jiaqiang, Luo Qiang, He Yu, Yu Hao, Yang Rongjun, Liang Xiao, Zhou Zheng, Deng Bin. Analogue experiments for the Shuangyushi area in the north western Sichuan Foreland Basin and their implications[J]. Bulletin of Geological Science and Technology, 2021, 40(2): 156-166. doi: 10.19509/j.cnki.dzkq.2021.0214

Analogue experiments for the Shuangyushi area in the north western Sichuan Foreland Basin and their implications

doi: 10.19509/j.cnki.dzkq.2021.0214
  • Received Date: 19 May 2020
  • In this study, we conducted three sets of analouge experiments, i.e., the pilot experiment with homogeneous quartz sand with frontal ramp, scaled experiments with embedded layer of silicone and/or frontal ramp, for the Shuangyushi area in the north western Sichuan Foreland Basin.It suggests that the north western Sichuan Foreland Basin is dominated with two-layer style of deformation, in particular, with pop-up in deep strata which is controlled by the basal decollement and frontal ramp.It should be noted that the frontal ramp has significant influence on the undistributed deformation and related fault-style occurred at the overlying sequences, which are in favor of formation for a pathway system between Lower Cambrian Qiongzhushi Formation and Mesozoic carbonate/dolomite reservoir.In contrast to duplex as a result of multistage deformation in the thrust-and-fold-belt, the north western Sichuan Foreland Basin is characterized with gentle deformation, as a result of forelandward propagation deformation in Cenozoic, and thus with a better quality of hydrocarbon preservation.Analogue experiments have been a powerful and indispensable tool to help us understand the thrust-fold-belt and foreland basin, as well as their hydrocarbon accumulation, from nature to models.

     

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