| DOI: | 10.1306/11051010026
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| Scopus记录号: | 2-s2.0-79957848316
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| 论文题名: | Quantification of fold curvature and fracturing using terrestrial laser scanning |
| 作者: | Pearce M.A.; Jones R.R.; Smith S.A.F.; McCaffrey K.J.W.
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| 刊名: | AAPG Bulletin
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| ISSN: | 0149-1860
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| EISSN: | 1558-9590
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| 出版年: | 2011
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| 发表日期: | 2011
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| 卷: | 95, 期:5 | | 起始页码: | 771
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| 结束页码: | 794
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| 语种: | 英语
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| Scopus关键词: | Confining pressures
; Data sets
; Exponential distributions
; Finite strain
; Fold surface
; Fracture density
; Fracture parameter
; Fracture spacing
; Fracture statistics
; Gaussian curvatures
; LIDAR data
; Light detection and ranging
; Point cloud
; Principal curvature
; Quantitative data sets
; Resampling
; Robust estimate
; Spatial variations
; Surface curvatures
; Terrestrial laser scanning
; Fracture mechanics
; Laser applications
; Lithology
; Optical radar
; Scanning
; Steel beams and girders
; Strain rate
; Brittle fracture
; bedding plane
; brittle fracture
; confining pressure
; curvature
; fold
; fracture
; Gaussian method
; laser method
; lidar
; outcrop
; spatial variation
; strain rate
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| Scopus学科分类: | Energy
; Earth and Planetary Sciences
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| 英文摘要: | Terrestrial laser scanning is used to capture the geometry of three single folded bedding surfaces. The resulting light detection and ranging (LIDAR) point clouds are filtered and smoothed to enable meshing and calculation of principal curvatures. Fracture traces, picked from the LIDAR data, are used to calculate fracture densities. The rich data sets produced by this method provide statistically robust estimates of spatial variations in fracture density across the fold surface. The digital nature of the data also allows resampling to derive fracture parameters that are more traditionally measured manually from outcrops (e.g., one-dimensional line transects of fracture spacing). The fracture statistics derived from the LIDAR data are compared with the calculated principal and Gaussian curvatures of the surface to assess whether areas of extreme curvature correlate with high-fracture density. For the folds studied, all the fracture spacing distributions showed an exponential distribution, and no significant correlation between fracture density and surface curvature was observed. This questions the validity of using curvature as a proxy for high brittle strains and highlights the need for a complete understanding of fold and fracture mechanics that include considerations of other factors including lithology, strain rate, and confining pressure, not just finite strain. The three case studies also illustrate how terrestrial laser scanning can be used to gather detailed quantitative data sets on fracture and fold distributions from outcrop analogs. Copyright ©2011. The American Association of Petroleum Geologists. All rights reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-79957848316&doi=10.1306%2f11051010026&partnerID=40&md5=e9a33779af17eb59ff4164950135c4d7
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/13429
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| Recommended Citation: | |
Pearce M.A.,Jones R.R.,Smith S.A.F.,et al. Quantification of fold curvature and fracturing using terrestrial laser scanning[J]. AAPG Bulletin,2011-01-01,95(5)
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