干旱区生态环境知识资源中心(Arid): Investigating polygonal fault topological variability: Structural causes vs image resolution

Arid

DOI	10.1016/j.jsg.2019.103930
	Investigating polygonal fault topological variability: Structural causes vs image resolution
	Morley, C. K.1; Binazirnejad, H.2
通讯作者	Morley, C. K.
来源期刊	JOURNAL OF STRUCTURAL GEOLOGY
ISSN	0191-8141
出版年	2020
卷号	130
英文摘要	The topology of three polygonal fault sets is investigated to determine potential causes of variations in connectivity (as measured by nodes and branches) between, and vertically within the fault sets. Two faults sets (from the Great South Basin (GSB), New Zealand, and Southeast Asia (SEA)) are imaged by 3D seismic reflection data, a third data set (Al Farafra Oasis, Egypt) is imaged from satellite data. The values measuring connectivity for the GSB and SEA polygonal fault sets plot in ternary diagrams in similar areas to other complex normal fault sets from rifts. These data sets are dominated by faults with either isolated fault tips (I nodes) or with abutting or splaying geometries (Y nodes). The similarities in node and branch topology of polygonal faults, and complex fault patterns in rifts (associated with multi-phase rifting, complex local stress rotations, or inherited fabrics), which are imaged on 3D seismic, indicates that topology describes the complexity of fault connectivity, but in general, by itself, cannot discriminate the causes of normal fault pattern variations. The Al Farafra Oasis faults sets (areas 2 and 3) provide an end member example of fault patterns with a very high degree of connectivity associated with cross-cutting fault sets (X-nodes) that are more rarely present in other fault sets. Some faults forming X-nodes may be hybrid tensile-shear failure fractures, or even calcite vein-filled tensile fractures. Much of the difference between the seismic and satellite image data sets may be related resolution, indicating that comparisons of topology characteristics are best made between data sets of similar resolution.
类型	Article
语种	英语
国家	Thailand
收录类别	SCI-E
WOS记录号	WOS:000509790800021
WOS关键词	COMPACTION ; NETWORK ; CHALK ; DEFORMATION ; EVOLUTION ; MUDROCKS ; GEOMETRY ; SYSTEMS ; BASIN ; RIFT
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
EI主题词	2020-01-01
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312302
作者单位	1.PTTEP, Enco Bldg,Soi 11,Vibhavadi Rangsit Rd, Bangkok 10200, Thailand; 2.Chiang Mai Univ, Dept Geol Sci, Petrolum Geophys MSc Program, 293 Huay Kaew Rd, Chiang Mai 50200, Thailand
推荐引用方式 GB/T 7714	Morley, C. K.,Binazirnejad, H.. Investigating polygonal fault topological variability: Structural causes vs image resolution[J],2020,130.
APA	Morley, C. K.,&Binazirnejad, H..(2020).Investigating polygonal fault topological variability: Structural causes vs image resolution.JOURNAL OF STRUCTURAL GEOLOGY,130.
MLA	Morley, C. K.,et al."Investigating polygonal fault topological variability: Structural causes vs image resolution".JOURNAL OF STRUCTURAL GEOLOGY 130(2020).