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DOI | 10.1306/0504171620817154 |
Validating novel boundary conditions for three-dimensional mechanics-based restoration: An extensional sandbox model example | |
Chauvin, Benjamin P.1; Lovely, Peter J.2; Stockmeyer, Joseph M.3,4; Plesch, Andreas3; Caumon, Guillaume1; Shaw, John H.3 | |
2018-02-01 | |
发表期刊 | AAPG BULLETIN |
ISSN | 0149-1423 |
EISSN | 1558-9153 |
出版年 | 2018 |
卷号 | 102期号:2页码:245-266 |
文章类型 | Article |
语种 | 英语 |
国家 | France; USA |
英文摘要 | Geomechanical restoration methods are dependent on boundary conditions to ensure geological consistency of the restored model in terms of geometry and strain. Classical restoration boundary conditions, such as flattening a datum horizon, may lead to inconsistent displacement and strain fields. We restore a laboratory structural sandbox model with known deformation history to develop guidelines for definition of boundary conditions that produce improved results from geomechanical restorations. The sandbox model has a basal silicone layer, includes synkinematic deposition, and is characterized by structures analogous to those found in suprasalt extensional environments. The deformed geometry is interpreted from three-dimensional tomography imaging, and a time series of cross section tomography images provides a benchmark to quantify restoration error and inform boundary conditions. We confirm that imposing a lateral displacement equal and opposite to far-field tectonic shortening or extension provides a more accurate restoration. However, the amount of displacement may not be known in real cases. We therefore test several established methods, using only the unrestored geometries, to assess the amount of shortening that should be used to guide geomechanical restorations. An accurate estimation is provided by the area-depth method and potentially by a dilatation analysis. Additionally, novel fault-compliance boundary conditions produce improved results in the vicinity of crossing and branching faults. Application of similar methods should produce improved restoration of natural geologic structures. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000430928600003 |
WOS关键词 | 3D STRUCTURAL MODELS ; WATER NIGER DELTA ; FAULT SYSTEMS ; GEOMECHANICAL RESTORATION ; GRANULAR-MATERIALS ; QUALITY-CONTROL ; CROSS-SECTIONS ; DEFORMATION ; AREA ; CONSTRAINTS |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/24495 |
专题 | 地球科学 |
作者单位 | 1.Univ Lorraine, CNRS, Ctr Rech Geol Mat Premieres Minerales & Energet, Ecole Natl Super Geol,GeoRessources, 2 Rue Doyen Marcel Roubault, F-54500 Vandoeuvre Les Nancy, France; 2.Chevron Energy Technol Co, Integrated Explorat Res Team, 1500 Louisiana St, Houston, TX 77002 USA; 3.Harvard Univ, Earth & Planetary Sci, 20 Oxford St, Cambridge, MA 02138 USA; 4.Chevron North Amer Explorat & Prod, 1500 Louisiana St, Houston, TX 77002 USA |
推荐引用方式 GB/T 7714 | Chauvin, Benjamin P.,Lovely, Peter J.,Stockmeyer, Joseph M.,et al. Validating novel boundary conditions for three-dimensional mechanics-based restoration: An extensional sandbox model example[J]. AAPG BULLETIN,2018,102(2):245-266. |
APA | Chauvin, Benjamin P.,Lovely, Peter J.,Stockmeyer, Joseph M.,Plesch, Andreas,Caumon, Guillaume,&Shaw, John H..(2018).Validating novel boundary conditions for three-dimensional mechanics-based restoration: An extensional sandbox model example.AAPG BULLETIN,102(2),245-266. |
MLA | Chauvin, Benjamin P.,et al."Validating novel boundary conditions for three-dimensional mechanics-based restoration: An extensional sandbox model example".AAPG BULLETIN 102.2(2018):245-266. |
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