globalchange  > 气候减缓与适应
DOI: 10.1002/grl.50959
论文题名:
Changes in electrical resistivity track changes in tectonic plate coupling
作者: Heise W.; Caldwell T.G.; Bertrand E.A.; Hill G.J.; Bennie S.L.; Ogawa Y.
刊名: Geophysical Research Letters
ISSN: 0094-8501
EISSN: 1944-8232
出版年: 2013
卷: 40, 期:19
起始页码: 5029
结束页码: 5033
语种: 英语
英文关键词: magnetotellurics ; plate coupling ; slow slip ; subduction
Scopus关键词: Electrically conductive ; Hikurangi subduction margins ; Interplate coupling ; Magnetotelluric data ; slow slip ; subduction ; Subduction interface ; Tectonic plates ; Clay minerals ; Couplings ; Locks (fasteners) ; Magnetotellurics ; Electric conductivity ; coastal zone ; electrical resistivity ; friction ; hydration ; image analysis ; plate tectonics ; sediment ; subduction ; tectonic plate ; Hikurangi ; New Zealand ; North Island ; Northland
英文摘要: Interplate coupling on the Hikurangi subduction margin along the east coast of New Zealand's North Island changes north to south from almost uncoupled to locked. Clay-rich sediments and aqueous fluids at the subduction interface have been invoked as key factors in the frictional processes that control interplate coupling. Here we use magnetotelluric data to show that the subduction interface in the weakly coupled region is electrically conductive but is resistive in the locked region. These results indicate the presence of a layer of fluid- and clay-rich sediments in the weakly coupled region and support the idea that the presence of fluid and hydrated clays at the interface is a major factor controlling plate coupling. Key Points Electrical resistivity images of the Hikurangi subduction margin The subduction interface is conductive in the weakly coupled part of the margin The subduction interface is resistive in the locked part of the margin ©2013. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84884770315&doi=10.1002%2fgrl.50959&partnerID=40&md5=02433aaf94c4473b5de7f00aae6c9496
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5765
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作者单位: GNS Science, Lower Hutt, New Zealand

Recommended Citation:
Heise W.,Caldwell T.G.,Bertrand E.A.,et al. Changes in electrical resistivity track changes in tectonic plate coupling[J]. Geophysical Research Letters,2013-01-01,40(19).
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