DOI: 10.1002/2015GL066479
论文题名: Poroelastic response of mid-ocean ridge hydrothermal systems to ocean tidal loading: Implications for shallow permeability structure
作者: Barreyre T. ; Sohn R.A.
刊名: Geophysical Research Letters
ISSN: 0094-9352
EISSN: 1944-9083
出版年: 2016
卷: 43, 期: 4 起始页码: 1660
结束页码: 1668
语种: 英语
英文关键词: hydrothermalism
; permeability
; poroelasticity
; spectral analysis
; tidal forcing
; time-series
Scopus关键词: Hot springs
; Mechanical permeability
; Spectrum analysis
; Submarine geology
; Time delay
; Time series
; Time series analysis
; Effective permeability
; Fluid temperatures
; Hydrothermal vent
; Hydrothermalism
; Permeability structure
; Poro-elasticity
; Poroelastic behavior
; Tidal forcing
; Vents
; elastic modulus
; hydrothermal vent
; Indian Ocean tsunami 2004
; mid-ocean ridge
; permeability
; poroelasticity
; shallow water
; temperature
; tidal range
; time series analysis
; Atlantic Ocean
; East Pacific Rise
; Lucky Strike Field
; Pacific Ocean
英文摘要: We use the time delay between tidal loading and exit-fluid temperature response for hydrothermal vents to model the poroelastic behavior and shallow upflow zone (SUZ) effective permeability structure of three mid-ocean ridge (MOR) sites with different spreading rates. Hydrothermal vents at Lucky Strike field exhibit relatively small phase lags corresponding to high SUZ effective permeabilities of ≥ ~10-10 m2, with variations that we interpret as resulting from differences in the extrusive layer thickness. By contrast, vents at East Pacific Rise site exhibit relatively large phase lags corresponding to low SUZ effective permeabilities of ≤ ~10-13 m2. Vents at Main Endeavour field exhibit both high and low phase lags, suggestive of a transitional behavior. Our results demonstrate that tidal forcing perturbs hydrothermal flow across the global MOR system, even in places where the tidal amplitude is very low, and that the flow response can be used to constrain variations in SUZ permeability structure beneath individual vent fields. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977932620&doi=10.1002%2f2015GL066479&partnerID=40&md5=647372749fa472781702f17e41db9b8f
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10315
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Recommended Citation:
Barreyre T.,Sohn R.A.. Poroelastic response of mid-ocean ridge hydrothermal systems to ocean tidal loading: Implications for shallow permeability structure[J]. Geophysical Research Letters,2016-01-01,43(4).