Geochemical characteristics of fault core and damage zones of the Hong-Che Fault Zone of the Junggar Basin (NW China) with implications for the fault sealing process

Liu, Yin; Wu, Kongyou; Wang, Xi; Pei, Yangwen; Liu, Bo; Guo, Jianxun

doi:10.1016/j.jseaes.2017.04.025

Cited by 15 publications

(8 citation statements)

References 69 publications

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“…It is generally developed in places with high content of sandstone (70%) and small fault throw (less than 10 m) (Fu & Xia, 2013; Wang, Dai, Li, & Ma, 2013; Wang, Shang, Gong, & Wang, 2019; Zhang, Fang, & Qiu, 2021; Zhu, 2014). Previous studies indicate that the cementation seal is commonly characterized by stretch, vitrification, carbonate crystallization, and significant cementation on cores, abrupt changes in the stacking pattern of wireline logs (including low AC value and high RT value) (Fisher et al, 2021; Fu & Xia, 2013; Liu, Chen, et al, 2017; Liu, Wu, et al, 2017; Pei et al, 2015; Wen, Fu, & Lv, 2016; Xie et al, 2021; Xu, Jiang, Chen, Liu, & Liu, 2016). At present, it shares similar characteristics to Gaoyou Depression, Subei Basin.…”

Section: Results and Interpretationsmentioning

confidence: 99%

“…(a) Location of Subei Basin in China; TR, Tarim Basin; JG, Junggar Basin; SC, Sichuan Basin; OD, Ordos Basin; EL, Erlian Basin; BB, Bohai Bay Basin; SL, Songliao Basin; integrated and modified from Liu et al, 2018, Liu, Yang, et al, 2020, Liu, Lai, et al, 2020; (b) Location and distribution of structural units of Subei Basin; integrated and modified from Zhou et al, 2018; (c) Distribution of structural units in and around Gaoyou Depression and datasets used; integrated and modified from Liu, Chen, et al, 2017, Liu, Wu, et al, 2017; Liu, He, et al, 2021, Liu, Jiang, et al, 2021, Liu, Jin, et al, 2021; (d) seismic interpretation showing structural framework, integrated and modified from Zhang et al, 2016 …”

Section: Geological Settingsmentioning

confidence: 99%

“…The Cretaceous is predominantly composed of the Upper Cretaceous (Taizhou Formation, Chishan Formation, and Pukou Formation) and Lower Cretaceous (Gecun Formation) (Figure 2). Among them, Taizhou Formation acts as the main reservoir (Liu et al, 2017). The Palaeogene consists of Funing Formation, Dainan Formation, and Sanduo Formation (Figure 2).…”

Section: Geological Settingsmentioning

confidence: 99%

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The quantitative evaluation of fault sealing during the Cenozoic in Gaoyou Depression, Subei Basin

2022

Geological Journal

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The quantitative evaluation of fault sealing is conducted based on comprehensive analysis of mechanism and type analysis of fault seal, fault seal evaluation, and case study analysis. The results indicate that the properties of fault sealing are the interaction of fault order, net-to-gross ratio, fault activity, mud distribution on fault walls, fault dip, and buried depth. In addition, there are three types of fault sealing, including juxtaposition seal, fault rock seal, and cementation seal. Furthermore, the opening and closing of faults play an essential role in controlling hydrocarbon migration and accumulation. Finally, the fault sealing plays a controlling role in reservoir preservation.

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Section: Results and Interpretationsmentioning

confidence: 99%

Section: Geological Settingsmentioning

confidence: 99%

Section: Geological Settingsmentioning

confidence: 99%

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The quantitative evaluation of fault sealing during the Cenozoic in Gaoyou Depression, Subei Basin

2022

Geological Journal

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“…These unconformities are strong proofs for multi-stage of basin and range coupling processes, and they also can play key roles in the hydrocarbon migration (Chen et al., 2000; Wu et al., 2003). Besides, the petrological studies and fluid inclusions testified that there were multiple-stage of fluid activities in the northwestern margin of the Junggar Basin, accompanied with different stages of hydrocarbon migration (Cao et al., 2005b; Liu et al., 2017). That means the multiple stages of coupling processes made the reactivation of faults in this area and prompted the migration of hydrocarbon fluids.…”

Section: Implications For the Hydrocarbon Accumulationmentioning

confidence: 99%

The basin and range systems and their evolution of the northwestern margin of Junggar Basin, China: Implications for the hydrocarbon accumulation

Zhou

Chen

et al. 2019

Energy Exploration & Exploitation

Self Cite

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Basin and range system in the northwestern margin of the Junggar Basin highly controlled the distribution of sediments and oil and gas. Detailed studies of basin and range system will be helpful in understanding the formation of hydrocarbon resources. Based on the previous studies and geophysical data, we analyze the structural characteristics and their evolution of basin and range system in this area. Although the basement of the Junggar Basin is still uncertain, high resolution of geophysical data suggests that the basement of the basin generally has lower and much stable gravity and magnetic anomalies than that in the orogenic belts around the basin and these anomalies are uneven in the basin, implying the basement may be assembled by different blocks. The amalgamation of these blocks will affect the deformation of the corresponding sedimentary cover. Detailed seismic interpretation across the basin and range system suggest that the imbricate thrust faults are dominant structural styles in this area. The Zaire-Hala'alate mountains were raised after multi-stage tectonic movement, and they started to rise in Late Carboniferous. The evolution of the western margin of the Junggar Basin can be divided into three stages, which are the initial formation stage in Late Carboniferous, the foreland basin developed stage from Permian to Jurassic and the rejuvenated foreland basin stage in Cenozoic. The coupling processes of basin and range system caused the formation, migration,

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“…Fluid-rock interactions in fault zones not only heal macro and micro fracture networks, but also lead to elemental variation and weathering of the fault core [9,10]. Most of the elements in fault core are depleted compared with those in the damage zone, which is ascribed to a stronger weathering process in the fault core [11]. Redistribution of elements and minerals in different subdivided zones could also result from the pressure solution of soluble minerals and diffusive mass transfer [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Geochemical Alteration and Mineralogy of Coals under the Influence of Fault Motion: A Case Study of Qi’nan Colliery, China

Liu

Jiang

2019

Minerals

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Geochemical characteristics of rocks in fault zones have been extensively studied, while there are limited studies on coal occurring in fault zones of underground coal mine. In this study, five coal samples were carefully collected from a reverse fault zone in Qi’nan colliery. Systematical detection methods were employed to analyze the different chemical and physical characteristics of fault-related coal samples. Through comparative analysis, the following insights are obtained. Three subdivided fault zones were classified according to the deformation characteristics of coal samples. Frictional heat and strong ductile deformation generated by fault motion led to the dissociation of phenol and carboxyl groups in coal molecules, which sharply decreased the concentrations of elements Co and Mo bound to these functional groups in zone I. The modified pore-cleat system in zone I with higher pore volume and lower permeability allowed solutions containing enriched trace elements to migrate through zone I locally. Concentrations of HREE, MREE and related elements associated with the invasive solutions showed significant positive anomalies in zone I. Precipitation and smearing of clay minerals in zone I led to poorer connectivity. Disruption and delamination of laminar clay minerals by strong compression-shear stress significantly increased the adsorption sites for related elements, especially the HREE and MREE. Nano-scale clay minerals resulting from stress-induced scaly exfoliation also enhanced the retention capability of REE in zone I.

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Geochemical characteristics of fault core and damage zones of the Hong-Che Fault Zone of the Junggar Basin (NW China) with implications for the fault sealing process

Cited by 15 publications

References 69 publications

The quantitative evaluation of fault sealing during the Cenozoic in Gaoyou Depression, Subei Basin

The quantitative evaluation of fault sealing during the Cenozoic in Gaoyou Depression, Subei Basin

The basin and range systems and their evolution of the northwestern margin of Junggar Basin, China: Implications for the hydrocarbon accumulation

Geochemical Alteration and Mineralogy of Coals under the Influence of Fault Motion: A Case Study of Qi’nan Colliery, China

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