| DOI: | 10.1306/07141413144
|
| Scopus记录号: | 2-s2.0-84919344253
|
| 论文题名: | Natural fractures in a United Kingdom shale reservoir analog, Cleveland Basin, northeast England |
| 作者: | Imber J.; Armstrong H.; Clancy S.; Daniels S.; Herringshaw L.; McCaffrey K.; Rodrigues J.; Trabucho-Alexandre J.; Warren C.
|
| 刊名: | AAPG Bulletin
|
| ISSN: | 0149-1564
|
| EISSN: | 1558-9294
|
| 出版年: | 2014
|
| 发表日期: | 2014
|
| 卷: | 98, 期:11 | | 起始页码: | 2411
|
| 结束页码: | 2437
|
| 语种: | 英语
|
| Scopus关键词: | Calcite
; Clay minerals
; Crystallography
; Fault slips
; Shale
; Structural geology
; Dilatational strain
; Horizontal stress
; Maximum principal stress
; Opening mode fracture
; Parallel fractures
; Poroelastic deformation
; Regional stress field
; Tectonic history
; Fracture
; calcite
; fault slip
; fracture mechanics
; ironstone
; Jurassic
; Mississippian
; mudstone
; poroelasticity
; reservoir
; shale
; stress field
; tectonostratigraphy
; Cleveland Basin
; England
; North Yorkshire
; United Kingdom
|
| Scopus学科分类: | Energy
; Earth and Planetary Sciences
|
| 英文摘要: | Faults and fractures within the well-exposed Lower Jurassic Cleveland Ironstone and Whitby Mudstone Formations may provide insights into the tectonic history of gas-prospective, Mississippian shale in northern England. Subvertical opening mode fractures occur throughout the Cleveland Basin. Bedparallel fractures, some of which contain blocky calcite fills, occur preferentially within well-bedded, clay-rich mudstones of the Cleveland Ironstone and Whitby Mudstone Formations at Jet Wyke and Port Mulgrave. Subvertical fractures display abutting or curving-parallel relationships with under- and overlying bed-parallel fractures. Together, these observations suggest that bed-parallel fractures, at times, acted as free surfaces. Some bedparallel fractures curve toward and branch from calcite-filled fault slip surfaces, indicating that bed-parallel fracturing and normal faulting were synchronous, occurring within a regional stress field with vertical maximum principal stress. This apparent paradox can be explained by normal compaction, followed by cementation and coupling between pore pressure and minimum horizontal stress driven by poroelastic deformation or incipient slip along critically stressed normal faults, causing elevation of horizontal stress in excess of the vertical stress within clay-rich units. Propagation of bed-parallel fractures was enhanced by dilatational strains adjacent to normal fault planes. Bed-parallel fractures have not been observed within more SiO2-rich units at the top of the Whitby Mudstone Formation at Whitby East Cliff, or within well-bedded, clay-rich shale at Saltwick Nab. This observation is consistent with the lack of normal faulting at Saltwick Nab, and the Whitby Mudstone Formation having been drained by structural and/or stratigraphical juxtaposition against permeable Middle Jurassic sandstones at both these localities. Copyright © 2014. The American Association of Petroleum Geologists. All rights reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84919344253&doi=10.1306%2f07141413144&partnerID=40&md5=6f70738145aff1c465a5a89a26d97a76
|
| Citation statistics: |
|
| 资源类型: | 期刊论文
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/13135
|
| 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
|
|
There are no files associated with this item.
|
| Recommended Citation: | |
Imber J.,Armstrong H.,Clancy S.,et al. Natural fractures in a United Kingdom shale reservoir analog, Cleveland Basin, northeast England[J]. AAPG Bulletin,2014-01-01,98(11)
|
|
|