气候变化领域集成服务门户(CCPortal): Pure Void Space and Fracture Pore Space in Fault-Fractured Zones

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DOI	10.3389/feart.2021.683439
	Pure Void Space and Fracture Pore Space in Fault-Fractured Zones
	Li, Xiaogang; Xu, Guoqiang; Wu, Chen; Yin, An; Wu, Shihu; Zuza, Andrew, V; Chen, Gang; Li, Zhiwu; Xu, Shaohua; Li, Yiwen
通讯作者	Li, XG (通讯作者)
发表日期	2021
EISSN	2296-6463
卷号	9
英文摘要	Fault-fractured pore space is complex and difficult to predict and evaluate. For a single independent ramp-flat fault-bend fold structure, the pure void space between two fault walls equals the integrated fracture pore spaces within the fault damage zone if it were concentrated on the fault plane. Using an area balancing technique and geometrical relationship, we have developed a two-dimensional (2D) model to calculate the pore space of fractures associated with fault development. The development and distribution of fault detachment voids or fault fracture pore space are controlled by the physical properties of the deforming medium, mechanics of deformation, and geometry of a fault-ramp structure. We demonstrate how concordant or discordant folding of the fault wall rock affects the nature of fault-fracture pore space. The pure void space and fracture pores in the fault zone can be quantitatively described by the following parameters: initial ramp angle and height, overlap ramp length, throw and slipping displacement, stack thickness, curvature and derivation of the angle between bed and fault plane (R-theta), and dip isogons. R-theta reflects the conformity of two opposite fault sections and the folding accordance of two walls, and it is a key element for the development and distribution of fracture pore space in a fault zone. Furthermore, we observed natural outcrops supporting and validating our model assumptions in the foreland fault system, Central China.
关键词	DABA SHAN DAMAGE CLASSIFICATION PREDICTION MIGRATION OROGEN
英文关键词	pure fault detachment void space; fracture pore space; fault fractured zone; quantitative description; fault-related fracture porosity; derivation of angle between bed and fault plane
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000655125400001
来源期刊	FRONTIERS IN EARTH SCIENCE
来源机构	中国科学院青藏高原研究所
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/260527
推荐引用方式 GB/T 7714	Li, Xiaogang,Xu, Guoqiang,Wu, Chen,et al. Pure Void Space and Fracture Pore Space in Fault-Fractured Zones[J]. 中国科学院青藏高原研究所,2021,9.
APA	Li, Xiaogang.,Xu, Guoqiang.,Wu, Chen.,Yin, An.,Wu, Shihu.,...&Li, Yiwen.(2021).Pure Void Space and Fracture Pore Space in Fault-Fractured Zones.FRONTIERS IN EARTH SCIENCE,9.
MLA	Li, Xiaogang,et al."Pure Void Space and Fracture Pore Space in Fault-Fractured Zones".FRONTIERS IN EARTH SCIENCE 9(2021).