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Control of fault plane geometry on the formation of a normal fault-related anticline: an experimental approach
In one of the largest oil-gas fields in Daqing, China, the anticlines are important structures that hold natural gas. The origin of the symmetric anticlines, which have bends on both the limbs, remains under debate. This is especially true in the case of the anticline in Xujiaweizi (XJWZ), which has...
Autores principales: | , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2017
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5428044/ https://www.ncbi.nlm.nih.gov/pubmed/28273956 http://dx.doi.org/10.1038/s41598-017-00249-x |
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author | Long, Wei Li, Zhongquan Li, Ying Chen, Junliang Li, Hongkui Wan, Shuangshuang |
author_facet | Long, Wei Li, Zhongquan Li, Ying Chen, Junliang Li, Hongkui Wan, Shuangshuang |
author_sort | Long, Wei |
collection | PubMed |
description | In one of the largest oil-gas fields in Daqing, China, the anticlines are important structures that hold natural gas. The origin of the symmetric anticlines, which have bends on both the limbs, remains under debate. This is especially true in the case of the anticline in Xujiaweizi (XJWZ), which has recently been the focus of gas exploration. A compressive force introduced by a ramp/flat fault was suggested as its origin of formation; however, this is inconsistent with the reconstruction of the regional stress fields, which show an extensive environment. An alternative explanation suggests a normal fault-related fold under extensive stress. However, this mechanism has difficulty explaining the very localized, rather than wide-spread, development of the anticline along the proposed controlling normal fault. The well-developed bends on both limbs of the anticline are also very different from the typical roll-over anticline. Here, we conduct an experimental study showing that the very localized development of the bent-on-both-limbs anticline is controlled by the geometry of the underlying fault-plane. A ramp/flat fault plane can introduce an anticline with bends on both limbs, while a smooth fault plane will develop a roll-over anticline with a bend on only one limb. |
format | Online Article Text |
id | pubmed-5428044 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2017 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-54280442017-05-15 Control of fault plane geometry on the formation of a normal fault-related anticline: an experimental approach Long, Wei Li, Zhongquan Li, Ying Chen, Junliang Li, Hongkui Wan, Shuangshuang Sci Rep Article In one of the largest oil-gas fields in Daqing, China, the anticlines are important structures that hold natural gas. The origin of the symmetric anticlines, which have bends on both the limbs, remains under debate. This is especially true in the case of the anticline in Xujiaweizi (XJWZ), which has recently been the focus of gas exploration. A compressive force introduced by a ramp/flat fault was suggested as its origin of formation; however, this is inconsistent with the reconstruction of the regional stress fields, which show an extensive environment. An alternative explanation suggests a normal fault-related fold under extensive stress. However, this mechanism has difficulty explaining the very localized, rather than wide-spread, development of the anticline along the proposed controlling normal fault. The well-developed bends on both limbs of the anticline are also very different from the typical roll-over anticline. Here, we conduct an experimental study showing that the very localized development of the bent-on-both-limbs anticline is controlled by the geometry of the underlying fault-plane. A ramp/flat fault plane can introduce an anticline with bends on both limbs, while a smooth fault plane will develop a roll-over anticline with a bend on only one limb. Nature Publishing Group UK 2017-03-13 /pmc/articles/PMC5428044/ /pubmed/28273956 http://dx.doi.org/10.1038/s41598-017-00249-x Text en © The Author(s) 2017 This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
spellingShingle | Article Long, Wei Li, Zhongquan Li, Ying Chen, Junliang Li, Hongkui Wan, Shuangshuang Control of fault plane geometry on the formation of a normal fault-related anticline: an experimental approach |
title | Control of fault plane geometry on the formation of a normal fault-related anticline: an experimental approach |
title_full | Control of fault plane geometry on the formation of a normal fault-related anticline: an experimental approach |
title_fullStr | Control of fault plane geometry on the formation of a normal fault-related anticline: an experimental approach |
title_full_unstemmed | Control of fault plane geometry on the formation of a normal fault-related anticline: an experimental approach |
title_short | Control of fault plane geometry on the formation of a normal fault-related anticline: an experimental approach |
title_sort | control of fault plane geometry on the formation of a normal fault-related anticline: an experimental approach |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5428044/ https://www.ncbi.nlm.nih.gov/pubmed/28273956 http://dx.doi.org/10.1038/s41598-017-00249-x |
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