Correspondences between high‐frequency sequences and the Milankovitch Cycles of Dongying Formation in Liaoxi Uplift, Bohai Bay Basin, North‐east China

Xia, Shiqiang; Lin, Changsong; Du, Xuebin; Hong, Li

doi:10.1002/gj.4130

Cited by 2 publications

(5 citation statements)

References 29 publications

(53 reference statements)

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“…It is bounded by Tan‐Lu Fault Belt to the east, Taihang Mountain Fault Belt to the west, intraplate Mesozoic Yanshan Orogen to the north, and Luxi Block to the south (F. Y. Zhao et al, 2016). Several secondary structural units are included in BBB during basin evolution (S. Q. Xia et al, 2021, 2022; Xu et al, 2005, 2008; Y. B. Zhu et al, 2021).…”

Section: Geological Settingsmentioning

confidence: 99%

“…The lower part includes Kongdian Formation, Shahejie Formation, Dongying Formation, while the upper part includes Guantao Formation, Minghuazhen Formation, and Pingyuan Formation (Figure 2). The strata in the lower part commonly consist of several sub‐members in contrast to the upper part (S. Q. Xia et al, 2021, 2022).…”

Section: Geological Settingsmentioning

confidence: 99%

“…Several secondary structural units are included in BBB during basin evolution (S. Q. Xia et al, 2021Xia et al, , 2022Xu et al, 2005Xu et al, , 2008Y. B. Zhu et al, 2021).…”

Section: Geological Settingsmentioning

confidence: 99%

“…The strata in the lower part commonly consist of several sub-members in contrast to the upper part (S. Q. Xia et al, 2021Xia et al, , 2022.…”

Section: Geological Settingsmentioning

confidence: 99%

“…Scholars from universities, colleges, institutes, and oil industries have conducted numerous related studies on tectonics, sequence stratigraphy, sedimentology, and reservoir mechanism and achieved fruitful and effective results (D. H. Jia et al, 2007, 2010; D. J. Li et al, 2007; Q. Li et al, 2011; Lin et al, 2015; Qi et al, 1994, 2010; Qi & Yang, 2010; Z. Q. Song et al, 2017; W. Wu et al, 2011, 2012; S. Q. Xia, Liu, et al, 2018; S. Q. Xia, Lin, et al, 2018; S. Q. Xia, Lin, Du, Jia, et al, 2020; S. Q. Xia et al, 2021, 2022; S. Q. Xia, Lin, Du, Li, et al, 2020; Xu, 2013; Xu et al, 2005, 2008; Y. X. Yu et al, 2011, 2013; F. S. Yu & Koyi, 2016; Zhou et al, 2010, 2012; X. M. Zhu et al, 2008; W. L. Zhu et al, 2015). However, few studies have been carried out regarding fault activity and subsidence history within Liaodong Bay.…”

Section: Introductionmentioning

confidence: 99%

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The fault activity, tectonic subsidence history, and geodynamics of syn‐depositional faults during the Palaeogene in Liaodong Bay, Bohai Bay Basin

Xia

Lin

et al. 2022

Geological Journal

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The fault activity, tectonic subsidence history, and geodynamics are analysed based on borehole information and seismic datasets from Liaodong Bay. The results reveal that the faults are intensely active (resulting in the faults that are characterized by more lengths and more throws) both in the northern and southern portions of the study area, while the faults are not active in the central portion of the study area during Kongdian Formation and Shahejie Formation deposition. However, the faults are generally more active in the northern portion of the study area than that in the southern portion of the study area. In contrast, the faults are intensely active in central and southern portion of the study area during Dongying Formation deposition. The numerous syn‐depositional faults, which are intensely active, result in southward movement of depositional centre. The tectonic subsidence history of wells (including well JZ‐A, well JZ‐B, well JZ‐C, well JZ‐D, well JX‐A, and well SZ‐A) in Liaodong Bay indicates that it shows obvious episodic tectonic evolution during the Palaeogene in Liaodong Bay. The episodic tectonic movement (initial rifting, rifting climax, thermal subsiding, and strike‐slip rifting) corresponds to Kongdian Formation and Shahejie Formation deposition, and Dongying Formation deposition, respectively. The spatio‐temporal variation of tectonic subsidence history is closely related to fault activity. The analysis results of balanced cross‐sections show that faults are intensely active during Dongying Formation deposition. However, a few faults are much active than that during Shahejie Formation deposition. There is a slight decrease in tectonic activity intensity during Kongdian Formation and Shahejie Formation deposition. In contrast, there is a significant decrease in tectonic activity intensity during third‐member to first‐member of Dongying Formation deposition. The tectonic activity intensity tends to cease by the end of Dongying Formation.

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Section: Geological Settingsmentioning

confidence: 99%

Section: Geological Settingsmentioning

confidence: 99%

“…Several secondary structural units are included in BBB during basin evolution (S. Q. Xia et al, 2021Xia et al, , 2022Xu et al, 2005Xu et al, , 2008Y. B. Zhu et al, 2021).…”

Section: Geological Settingsmentioning

confidence: 99%

“…The strata in the lower part commonly consist of several sub-members in contrast to the upper part (S. Q. Xia et al, 2021Xia et al, , 2022.…”

Section: Geological Settingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The fault activity, tectonic subsidence history, and geodynamics of syn‐depositional faults during the Palaeogene in Liaodong Bay, Bohai Bay Basin

Xia

Lin

et al. 2022

Geological Journal

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Identification of Milankovitch sedimentary cycle in Fengcheng Formation, Mahu depression: a case study of well Maye 1

Wang,

Chen,

Chang

et al. 2024

Front. Earth Sci.

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The sedimentary cycle of Fengcheng Formation in Junggar Basin changes rapidly and is difficult to identify. The low classification accuracy of high-frequency fine-grained sedimentary cycles restricts the exploration of unconventional shale oil and gas. Full-interval coring of well Maye 1 provides a solid foundation for small-layer research. In this paper, the high-frequency sedimentary cycle of Milan kovitch in Fengcheng Formation is studied by means of spectral analysis and wavelet transform, and the shale sweet spot is identified. The long period of eccentricity of 405ka, short period of eccentricity of 100ka and long period of axis slope of 42736a can be used as semi-quantitative basis for the classification of the fourth, fifth and sixth sequences. The Fengcheng Formation can be divided into 2 quaternary sequence cycles, 9 quaternary sequence cycles and 16 quaternary sequence cycles. A long period of eccentricity of 405ka can identify large-scale lake recessional and recessional, and there is a maximum lake flooding surface in the middle of the second Fengcheng Formation, which corresponds to high abundance of organic matter and high hydrocarbon generation potential. The 100ka short period eccentricity can identify the sweet spot layer, and there are 8 sweet spots in the well Maye 1, which is consistent with the results of nuclear magnetic interpretation. The research results provide a semi-quantitative basis for the classification of high-frequency sedimentary cycles and the identification of sweet spots of Fengcheng Formation in Mahu Sag, Junggar Basin.

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Correspondences between high‐frequency sequences and the Milankovitch Cycles of Dongying Formation in Liaoxi Uplift, Bohai Bay Basin, North‐east China

Cited by 2 publications

References 29 publications

The fault activity, tectonic subsidence history, and geodynamics of syn‐depositional faults during the Palaeogene in Liaodong Bay, Bohai Bay Basin

The fault activity, tectonic subsidence history, and geodynamics of syn‐depositional faults during the Palaeogene in Liaodong Bay, Bohai Bay Basin

Identification of Milankovitch sedimentary cycle in Fengcheng Formation, Mahu depression: a case study of well Maye 1

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