DOI: 10.1002/2016GL069430
论文题名: Crustal magnetization and the subseafloor structure of the ASHES vent field, Axial Seamount, Juan de Fuca Ridge: Implications for the investigation of hydrothermal sites
作者: Caratori Tontini F. ; Crone T.J. ; de Ronde C.E.J. ; Fornari D.J. ; Kinsey J.C. ; Mittelstaedt E. ; Tivey M.
刊名: Geophysical Research Letters
ISSN: 0094-9626
EISSN: 1944-9357
出版年: 2016
卷: 43, 期: 12 起始页码: 6205
结束页码: 6211
语种: 英语
英文关键词: ASHES vent field
; crustal magnetization
; Sentry AUV
Scopus关键词: Clay alteration
; Magnetic levitation vehicles
; Magnetic storage
; Magnetism
; Magnetization
; Submarine geology
; Volcanic rocks
; Autonomous underwater vehicles (AUV)
; Crustal magnetization
; Hydrothermal activity
; Hydrothermal alterations
; Hydrothermal fluids
; Lava morphologies
; Sentry AUV
; Surface manifestations
; Autonomous underwater vehicles
; autonomous underwater vehicle
; geophysical method
; high temperature
; host rock
; hydrothermal activity
; hydrothermal alteration
; hydrothermal fluid
; hydrothermal vent
; lava
; magnetization
; seafloor
; seamount
; volcanic rock
; Juan de Fuca Ridge
; Pacific Ocean
英文摘要: High-resolution geophysical data have been collected using the Autonomous Underwater Vehicle (AUV) Sentry over the ASHES (Axial Seamount Hydrothermal Emission Study) high-temperature (~348°C) vent field at Axial Seamount, on the Juan de Fuca Ridge. Multiple surveys were performed on a 3-D grid at different altitudes above the seafloor, providing an unprecedented view of magnetic data resolution as a function of altitude above the seafloor. Magnetic data derived near the seafloor show that the ASHES field is characterized by a zone of low magnetization, which can be explained by hydrothermal alteration of the host volcanic rocks. Surface manifestations of hydrothermal activity at the ASHES vent field are likely controlled by a combination of local faults and fractures and different lava morphologies near the seafloor. Three-dimensional inversion of the magnetic data provides evidence of a vertical, pipe-like upflow zone of the hydrothermal fluids with a vertical extent of ~100 m. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84977635377&doi=10.1002%2f2016GL069430&partnerID=40&md5=b1c2ea0a0c704f90564b258a05d5dcc4
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10589
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: GNS Science, Lower Hutt, New Zealand
Recommended Citation:
Caratori Tontini F.,Crone T.J.,de Ronde C.E.J.,et al. Crustal magnetization and the subseafloor structure of the ASHES vent field, Axial Seamount, Juan de Fuca Ridge: Implications for the investigation of hydrothermal sites[J]. Geophysical Research Letters,2016-01-01,43(12).