globalchange  > 气候变化与战略
DOI: 10.1016/j.epsl.2020.116443
论文题名:
Early Holocene Greenland-ice mass loss likely triggered earthquakes and tsunami
作者: Steffen R.; Steffen H.; Weiss R.; Lecavalier B.S.; Milne G.A.; Woodroffe S.A.; Bennike O.
刊名: Earth and Planetary Science Letters
ISSN: 0012821X
出版年: 2020
卷: 546
语种: 英语
中文关键词: glacial isostatic adjustment ; glacially-triggered faulting ; Greenland ; relative sea-level data ; tsunami
英文关键词: Faulting ; Glacial geology ; Glaciers ; Ice ; Offshore oil well production ; Sea level ; Structural geology ; Tsunamis ; Combined analysis ; Fault reactivation ; Greenland Ice Sheet ; North Atlantic Ocean ; Relative sea level ; Sea level indicators ; Stress release ; Triggered Earthquakes ; Earthquakes ; earthquake magnitude ; Holocene ; ice sheet ; sea level ; tsunami ; wave runup ; Arctic ; Atlantic Ocean ; Atlantic Ocean (North) ; Canada ; Greenland ; Greenland Ice Sheet ; United Kingdom
英文摘要: Due to their large mass, ice sheets induce significant stresses in the Earth's crust. Stress release during deglaciation can trigger large-magnitude earthquakes, as indicated by surface faults in northern Europe. Although glacially-induced stresses have been analyzed in northern Europe, they have not yet been analyzed for Greenland. We know that the Greenland Ice Sheet experienced a large melting period in the early Holocene, and so here, we analyze glacially-induced stresses during deglaciation for Greenland for the first time. Instability occurs in southern Greenland, where we use a combined analysis of past sea level indicators and a model of glacially-induced fault reactivation to show that deglaciation of the Greenland Ice Sheet may have caused a large magnitude earthquake or a series of smaller magnitude earthquakes around 10,600 years ago offshore south-western Greenland. The earthquake(s) may have shifted relative sea level observations by several meters. If the earthquake-induced stress release was created during a single event, it could have produced a tsunami in the North Atlantic Ocean with runup heights of up to 7.2 m in the British Isles and up to 7.8 m along Canadian coasts. © 2020 The Authors
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/165284
Appears in Collections:气候变化与战略

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作者单位: Lantmäteriet, Lantmäterigatan 2, Gävle, 80182, Sweden; Department of Geosciences, Virginia Tech, 4044 Derring Hall, Blacksburg, VA 24061, United States; Center for Coastal Studies, Virginia Tech, 926 West Campus Drive, Blacksburg, VA 24061, United States; Department of Physics and Physical Oceanography, Memorial University of Newfoundland, St. John's, NF A1B 3X7, Canada; Department of Earth and Environmental Sciences, University of Ottawa, STEM Complex, 150 Louis Pasteur Private, Ottawa, ON K1N 6N5, Canada; Department of Geography, Durham University, Lower Mountjoy, South Road, Durham, DH1 3LE, United Kingdom; Geological Survey of Denmark and Greenland, Øster Voldgade 10, Copenhagen K, 1350, Denmark

Recommended Citation:
Steffen R.,Steffen H.,Weiss R.,et al. Early Holocene Greenland-ice mass loss likely triggered earthquakes and tsunami[J]. Earth and Planetary Science Letters,2020-01-01,546
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