Influence of pre-existing faults on Cenozoic structures in the Chengbei sag and the Wuhaozhuang area, Bohai Bay Basin, East China

Wang, Di; Xiao-qing, Zhang; Li, Yang; Chen, Xingpeng; Ma, Saiting; Wu, Zucheng

doi:10.1016/j.marpetgeo.2022.105539

Cited by 7 publications

(13 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, a shear zone can be bound by a thrust fault in some case (a1 in Figure 10a). Previous studies have documented that pre‐rift strata truncated by the base rift surface thin towards the major rift‐related faults plane, indicating that the rift‐related faults have reactivated pre‐existing thrusts or thrusts associated with unroofed fold (a2 in Figure 10a; Wang et al., 2022; Wu et al., 2020). This style of interaction has been observed on the western slope of the southern rift segment (Figure 6a,b).…”

Section: Discussionmentioning

confidence: 95%

“…The pre‐rift strata in most basement wells are mainly Early‐Middle Jurassic foreland sediments and the consistent hanging wall thinning towards the major rift related fault planes has been demonstrated through structural restorations to be reactivated pre‐existing thrusts or thrusts associated unroofed folds (e.g. Wang et al., 2022; Wu et al., 2020).…”

Section: Data Methods and Interpretation Of Basement Structuresmentioning

confidence: 99%

“…Whilst this has long been recognized, over the last decade, the quality and resolution of seismic data, especially 3D seismic data, have been significantly improved, which has enabled identification of basement structures within both pre-rift strata and crystalline basement (Collanega et al, 2019;Guan et al, 2023;Osagiede et al, 2020;Phillips et al, 2016;Wu et al, 2020). The exact manner in which basement structures reactivate and the degree that basement structures exert their influence on rift geometry and fault evolution are now well documented (Bird et al, 2015;Cheng et al, 2023;Fazlikhani et al, 2017;Morley, 2014;Phillips et al, 2016Phillips & McCaffrey, 2019;Pichel et al, 2023;Samsu et al, 2023;Shaban et al, 2023;Strugale et al, 2021;Wang et al, 2022;Wu et al, 2020;Ye et al, 2020). However, few studies have considered how, or indeed if, variations in structural heterogeneity influence not only the presence but also the nature of rift segmentation through subsurface seismic data (Clemson et al, 1997;Zhong & Escalona, 2020).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Rift segmentation caused by reactivation of multiple basement structure systems: Evidence from the Hailar‐Tamtsag Rift, northeast Asia

Wu,

Shen,

Paton

et al. 2024

Basin Research

View full text Add to dashboard Cite

Since the influence of structural inheritance on rift geometry has been widely documented, it is easy to assume that rift segmentation, a prominent feature of rift geometry, may have been also influenced by structural heterogeneity. However, limited studies using high‐quality seismic data have considered how basement reactivation is accommodated at individual fault scale and then how this results in rift segmentation at sub‐basin scale. Using extensive high‐quality 3D seismic data and 76 borehole data, we investigate the characteristics of rift architecture, rift‐related fault systems, basement structures and rift evolution in the Hailar‐Tamtsag Rift, northeast Asia. We identify three distinct rift segments which are defined by three rift‐related fault systems and accompanied by three underlying basement structure systems. We recognize three phases of basement reactivation and three types (including five styles) of interactions between basement structures and rift‐related faults. Our study shows that rift segmentation has been caused by reactivation of multiple basement structure systems which not only influence the orientation of rift segments and type of rift architecture, but also control the location, strike, dip and style of the major rift‐related faults. Rift segmentation was completely achieved through multiple phases of basement reactivation, while the main structural framework of segmentation was established through ‘extensive reactivation’ during the second phase extension. Our study examines how multiple basement structure systems control rift segmentation at both individual fault and sub‐basin scales, which can significantly improve our understanding of relationship between structural inheritance and rift segmentation.

show abstract

Section: Discussionmentioning

confidence: 95%

Section: Data Methods and Interpretation Of Basement Structuresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Rift segmentation caused by reactivation of multiple basement structure systems: Evidence from the Hailar‐Tamtsag Rift, northeast Asia

Wu,

Shen,

Paton

et al. 2024

Basin Research

View full text Add to dashboard Cite

show abstract

“…Notable examples of such basins include eastern China (the Bohai Bay Basin (BBB) [7][8][9]; the South China Sea (SCS) [10][11][12]); the North Sea rift [13][14][15]; the Thailand Basin [16,17]; and the North West Shelf, Australia [18,19]. These regions experience multi-phase stress, causing the pre-existing faults to reactivate in later tectonic events [20]. Furthermore, basins are frequently separated by pre-existing faults, resulting in changes to the basin architecture.…”

Section: Introductionmentioning

confidence: 99%

“…However, subsequent studies revealed that pre-existing structures (such as faults, basement structures, and salt structures) within rift basins significantly impact fault characteristics [33,34]. Additionally, multi-phase extension leads to localized stress rotation and complex fault characteristics [14,20]. In this study, we analyze the fault patterns and basin evolution using high-resolution 3D seismic data and well-logging data from the Shengli Oil Field, which has been subjected to extensive hydrocarbon exploration within the Jiyang Depression.…”

Section: Introductionmentioning

confidence: 99%

The Impact of Pre-Existing Faults on Fault Geometry during Multiphase Rifts: The Jiyang Depression, Eastern China

Wang,

Yang,

et al. 2023

JMSE

Self Cite

View full text Add to dashboard Cite

The combination of multi-phase extension and pre-existing fault reactivation results in a complex fault pattern within hydrocarbon-bearing basins, affecting hydrocarbon exploration at different stages. We used high-resolution 3D seismic data and well data to reveal the impact of multi-phase extension and pre-existing fault reactivation on Cenozoic fault pattern changes over time in the Jiyang Depression of eastern China. The results show that during the Paleocene, a portion of NW-striking pre-existing faults reactivated under NS extension and controlled the basin structure (type 1). Other parts of the NW-striking pre-existing faults stopped activity and served as weak surfaces, and a series of NNE-striking faults were distributed in an en-echelon pattern along the NW direction at shallow depths (type 2). In areas unaffected by pre-existing faults, NE-striking faults formed perpendicular to regional stresses. During the Eocene, the regional stresses shifted clockwise to near-NS extension, and many EW-striking faults developed within the basin. The NE-striking faults and the EW-striking faults were hard-linked, forming the ENE-striking curved faults that controlled the structure in the basin (type 3). The NNE-striking faults were distinctly strike-slip at this time, with the ENE-striking faults forming a horsetail pattern at their tails. Many ENE-striking faults perpendicular to the extension direction were formed in areas where the basement was more stable and pre-existing faults were not developed (type 4). There were also developing NS-striking faults that were small in scale and appeared in positions overlapping different main faults (type 5). Additionally, different fault patterns can guide different phases of hydrocarbon exploration. Type 1, type 2, and type 3 faults are particularly suitable for early-stage exploration. In contrast, type 4 and type 5 faults are more appropriate for mature exploration areas, where they may reveal smaller hydrocarbon reservoirs.

show abstract

Cenozoic sedimentary archives of a strike-slip fault zone in the Tanhai Region, Bohai Bay Basin, Northeastern China

Yuan,

Dai,

Zhang

et al. 2024

Journal of Structural Geology

View full text Add to dashboard Cite

Influence of pre-existing faults on Cenozoic structures in the Chengbei sag and the Wuhaozhuang area, Bohai Bay Basin, East China

Cited by 7 publications

References 46 publications

Rift segmentation caused by reactivation of multiple basement structure systems: Evidence from the Hailar‐Tamtsag Rift, northeast Asia

Rift segmentation caused by reactivation of multiple basement structure systems: Evidence from the Hailar‐Tamtsag Rift, northeast Asia

The Impact of Pre-Existing Faults on Fault Geometry during Multiphase Rifts: The Jiyang Depression, Eastern China

Cenozoic sedimentary archives of a strike-slip fault zone in the Tanhai Region, Bohai Bay Basin, Northeastern China

Contact Info

Product

Resources

About