Experimental Insights on the Structural Patterns and Their Formation Mechanisms of the Xujiaweizi Fault Depression in the Songliao Basin

Long, Wei; Li, Zhongquan; Li, Ying; Chen, Junliang; Tan, Fengyu; Zheng, Zhiyi; Hu, Jian; Li, Runfang

doi:10.1007/s12583-017-0767-z

Cited by 9 publications

(2 citation statements)

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“…Therefore, dry, loose quartz sand was selected as the ideal experimental material. The quartz sand had an average density of 1,297 kg/m 3 , a particle size between 0.3 and 0.4 mm, an internal friction angle of fracture of about 31 , a cohesion of 92.3 Pa, and an internal friction coefficient of about 0.55 (Long et al, 2018). Quartz sands of different colours (but with the same mechanical properties) were selected to facilitate the observation of the experimental progress as well as the structural deformations and displacements of the model.…”

Section: Structural Physical Simulation Experimentsmentioning

confidence: 99%

“…"Intra-sag uplift" (Z. Q. Li & Liu, 2010;Long et al, 2018), also known as "ramp-anticline" (Roma, Vidal-Royo, McClay, Ferrer, & Muñoz, 2018), is a special kind of normal fault-related fold, which typically forms when the geometry of the boundary fault behaves as a ramp-flat fault system in the context of extensional dynamics and also under the influence of gravity.…”

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confidence: 99%

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Structural characteristics and formation mechanisms of Bayanhushu Sag in Hailar Basin, north‐east China: A study based on structural physical simulation

Liu

Yang

et al. 2021

Geological Journal

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The Hailar Basin, located in north‐east China, is a typical continental rifted basin that contains oil and gas. The basin formation process comprised several stages of construction and reformation with complex formation mechanisms. The Bayanhushu (BYHS) Sag is a secondary structural unit in the south‐west Hailar Basin with a significant resource potential, but its current poor exploration and insufficient understanding of the structural evolution characteristics are restricting further oil and gas exploration. Therefore, the study of the structural evolution of the BYHS Sag plays a pivotal role in the future exploration and development of oil and gas. There are different hypotheses on the formation mechanisms and structural evolution of the BYHS Sag. To further understand the evolutionary history of the BYHS Sag, a structural physical simulation experiment was used based on the structural interpretation and geometric analysis of a seismic section. Inversion validation was then undertaken by the 2DMove equilibrium profile recovery technology. It was found that the formation process of the BYHS Sag was mainly controlled by the western Adunchulu Fault. Faults on the section developed in succession from top to bottom. The fault plane experienced multiple changes, thus forming a special seat‐shaped structural pattern. Structural inversion occurred twice during the evolution of the sag. The compressive stress during the tectonic inversion mainly acted in a SE direction. It is inferred that this was related to the subduction of the Palaeo‐Pacific Plate under the Eurasian Plate and the intermittent compression caused by the transmission of stress of the arc–continent collision.

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Section: Structural Physical Simulation Experimentsmentioning

confidence: 99%

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confidence: 99%