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DOI | 10.1038/s41561-019-0440-5 |
The susceptibility of Oklahoma's basement to seismic reactivation | |
Kolawole, F.1; Johnston, C. S.1; Morgan, C. B.1,4; Chang, J. C.2; Marfurt, K. J.1; Lockner, D. A.3; Reches, Z.1; Carpenter, B. M.1 | |
2019-10-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2019 |
卷号 | 12期号:10页码:839-+ |
文章类型 | Article |
语种 | 英语 |
国家 | USA |
英文摘要 | Recent widespread seismicity in Oklahoma is attributed to the reactivation of pre-existing, critically stressed and seismically unstable faults due to decades of wastewater injection. However, the structure and properties of the reactivated faults remain concealed by the sedimentary cover. Here, we explore the major ingredients needed to induce earthquakes in Oklahoma by characterizing basement faults in the field, in seismic surveys and via rock-mechanics experiments. Outcrop and satellite mapping reveal widespread fault and fracture systems with trends that display a marked similarity to the trends of recent earthquake lineaments. Our three-dimensional seismic analyses show steeply dipping basement-rooted faults that penetrate the overlying sedimentary sequences, representing pathways for wastewater migration. Experimental stability analysis indicates that Oklahoma's basement rocks become seismically unstable at conditions relevant to the dominant hypocentral depths of the recent earthquakes. These analyses demonstrate that the geometry, structure and mechanical stability of Oklahoma's basement make it critically susceptible to seismic reactivation. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000488223800013 |
WOS关键词 | W 5.8 PAWNEE ; INDUCED EARTHQUAKES ; WICHITA MOUNTAINS ; SOUTHERN OKLAHOMA ; ARBUCKLE GROUP ; OSAGE COUNTY ; FAULT ; FRICTION ; SLIP ; INJECTION |
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/187544 |
专题 | 地球科学 气候变化 |
作者单位 | 1.Univ Oklahoma, Sch Geosci, Norman, OK 73019 USA; 2.US Geol Survey, Hawaiian Volcano Observ, Hawaii Natl Pk, HI USA; 3.US Geol Survey, 345 Middlefield Rd, Menlo Pk, CA 94025 USA; 4.Chesapeake Energy Corp, Oklahoma City, OK USA |
推荐引用方式 GB/T 7714 | Kolawole, F.,Johnston, C. S.,Morgan, C. B.,et al. The susceptibility of Oklahoma's basement to seismic reactivation[J]. NATURE GEOSCIENCE,2019,12(10):839-+. |
APA | Kolawole, F..,Johnston, C. S..,Morgan, C. B..,Chang, J. C..,Marfurt, K. J..,...&Carpenter, B. M..(2019).The susceptibility of Oklahoma's basement to seismic reactivation.NATURE GEOSCIENCE,12(10),839-+. |
MLA | Kolawole, F.,et al."The susceptibility of Oklahoma's basement to seismic reactivation".NATURE GEOSCIENCE 12.10(2019):839-+. |
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