Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1002/2017GL075127 |
In Situ Stress and Pore Pressure in the Deep Interior of the Nankai Accretionary Prism, Integrated Ocean Drilling Program Site C0002 | |
Kitajima, Hiroko1,2,3; Saffer, Demian4,5; Sone, Hiroki6; Tobin, Harold7; Hirose, Takehiro8 | |
2017-10-16 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:19 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Japan |
英文摘要 | Strength and slip behaviors of subduction megathrusts are controlled by the physical properties and stress state not only of the fault zones themselves but also the adjacent wall rocks in overriding and subducting plates. In the Nankai Trough, a 3km deep riser borehole at Integrated Ocean Drilling Program Site C0002 was drilled into the Kumano fore-arc basin and the underlying accretionary prism. We quantify the full in situ stress tensor and pore pressure at Site C0002 by integrating drilling data, geophysical logging, and downhole measurements using empirical relations that describe sediment compaction behavior as a function of loading path. The Kumano Basin is loaded in uniaxial vertical strain conditions, whereas the prism below is loaded with greater differential stress, has a modestly elevated pore pressure, and lies in a strike-slip faulting regime. This can be reconciled with slip on the megathrust fault if the horizontal stresses vary with time or depth and/or if shear stress along the megathrust is low. |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000413921300015 |
WOS关键词 | TROUGH SUBDUCTION ZONE ; FORE-ARC BASIN ; NORMAL-FAULT POPULATIONS ; SEISMOGENIC ZONE ; FLUID PRESSURE ; KUMANO BASIN ; JAPAN ; ORIENTATIONS ; CONSTRAINTS ; SEDIMENTS |
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/28995 |
专题 | 气候变化 |
作者单位 | 1.Texas A&M Univ, Ctr Tectonophys, College Stn, TX 77843 USA; 2.Texas A&M Univ, Dept Geol & Geophys, College Stn, TX 77843 USA; 3.Geol Survey Japan, Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki, Japan; 4.Penn State Univ, Dept Geosci, University Pk, PA 16802 USA; 5.Penn State Univ, Ctr Geomech Geofluids & Geohazards, University Pk, PA 16802 USA; 6.Univ Wisconsin, Dept Civil & Environm Engn, Madison, WI 53706 USA; 7.Univ Wisconsin, Dept Geosci, Madison, WI USA; 8.Japan Agcy Marine Earth Sci & Technol, Kochi Inst Core Sample Res, Nango Ku, Yokosuka, Kanagawa, Japan |
推荐引用方式 GB/T 7714 | Kitajima, Hiroko,Saffer, Demian,Sone, Hiroki,et al. In Situ Stress and Pore Pressure in the Deep Interior of the Nankai Accretionary Prism, Integrated Ocean Drilling Program Site C0002[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(19). |
APA | Kitajima, Hiroko,Saffer, Demian,Sone, Hiroki,Tobin, Harold,&Hirose, Takehiro.(2017).In Situ Stress and Pore Pressure in the Deep Interior of the Nankai Accretionary Prism, Integrated Ocean Drilling Program Site C0002.GEOPHYSICAL RESEARCH LETTERS,44(19). |
MLA | Kitajima, Hiroko,et al."In Situ Stress and Pore Pressure in the Deep Interior of the Nankai Accretionary Prism, Integrated Ocean Drilling Program Site C0002".GEOPHYSICAL RESEARCH LETTERS 44.19(2017). |
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