Book contents
- Landslides
- Landslides
- Copyright page
- Contents
- Contributors
- Preface
- 1 Landslide hazard and risk
- 2 Landslides in the Earth system
- 3 Earthquake ground motion and patterns of seismically induced landsliding
- 4 Landslides at stratovolcanoes initiated by volcanic unrest
- 5 Mobility of long-runout rock avalanches
- 6 Rapid rock-slope failures
- 7 Risk assessments for debris flows
- 8 Landslides in quick clay
- 9 Controls on the distribution of major types of submarine landslides
- 10 Tsunami hazard assessment related to slope failures in coastal waters
- 11 Physical impacts of climate change on landslide occurrence and related adaptation
- 12 Landslides and geologic environments
- 13 Numerical modeling of rock-slope instability
- 14 Remote sensing techniques and landslides
- 15 Engineering geomorphology of landslides
- 16 Developments in landslide runout prediction
- 17 Models of the triggering of landslides during earthquakes
- 18 Slow rock-slope deformation
- 19 Landslide monitoring:
- 20 Groundwater in slopes
- 21 Soil slope stabilization
- 22 Rockfall characterization and modeling
- 23 The 2006 Eiger rockslide, European Alps
- 24 Randa:
- 25 Characterization and management of rockslide hazard at Turtle Mountain, Alberta, Canada
- 26 The Åknes rockslide, Norway
- 27 A seismometric approach for back-analyzing an unusual rockfall in the Apennines of Italy
- 28 Downie Slide, British Columbia, Canada
- 29 The 1963 Vaiont landslide, Italy
- 30 Hong Kong landslides
- 31 Landslides induced by the Wenchuan earthquake
- 32 Landslides on other planets
- Index
9 - Controls on the distribution of major types of submarine landslides
Published online by Cambridge University Press: 05 May 2013
- Landslides
- Landslides
- Copyright page
- Contents
- Contributors
- Preface
- 1 Landslide hazard and risk
- 2 Landslides in the Earth system
- 3 Earthquake ground motion and patterns of seismically induced landsliding
- 4 Landslides at stratovolcanoes initiated by volcanic unrest
- 5 Mobility of long-runout rock avalanches
- 6 Rapid rock-slope failures
- 7 Risk assessments for debris flows
- 8 Landslides in quick clay
- 9 Controls on the distribution of major types of submarine landslides
- 10 Tsunami hazard assessment related to slope failures in coastal waters
- 11 Physical impacts of climate change on landslide occurrence and related adaptation
- 12 Landslides and geologic environments
- 13 Numerical modeling of rock-slope instability
- 14 Remote sensing techniques and landslides
- 15 Engineering geomorphology of landslides
- 16 Developments in landslide runout prediction
- 17 Models of the triggering of landslides during earthquakes
- 18 Slow rock-slope deformation
- 19 Landslide monitoring:
- 20 Groundwater in slopes
- 21 Soil slope stabilization
- 22 Rockfall characterization and modeling
- 23 The 2006 Eiger rockslide, European Alps
- 24 Randa:
- 25 Characterization and management of rockslide hazard at Turtle Mountain, Alberta, Canada
- 26 The Åknes rockslide, Norway
- 27 A seismometric approach for back-analyzing an unusual rockfall in the Apennines of Italy
- 28 Downie Slide, British Columbia, Canada
- 29 The 1963 Vaiont landslide, Italy
- 30 Hong Kong landslides
- 31 Landslides induced by the Wenchuan earthquake
- 32 Landslides on other planets
- Index
Summary
This study uses the eastern Canadian continental margin as a type example to assess controls on the distribution of different types of submarine landslides. A brief summary is provided of the major styles of submarine landslides recognized globally, their transport mechanisms, and the factors responsible for both preconditioning and triggering failure. The eastern Canadian continental margin differs along its length as a result of the northward-decreasing age of oceanic rifting and resulting depth of the ocean floor. It has been strongly modified by Quaternary glaciation. Landslides on the margin are recognized from 2D and 3D seismic data, multibeam bathymetry, and 10-m-long cores. The ages of landslides are well defined from regional stratigraphic studies. The distribution of different types of landslides on the eastern Canadian margin depends on whether the margin is progradational or erosional. Progradational slopes have unconsolidated sediment available for retrogressive slumps, whereas on more erosional slopes more consolidated sediment is available to form blocky disaggregated landslides. Most large landslides appear to result from regional failure during large, but rare, passive-margin earthquakes. Preconditioning factors such as sedimentation rate or flux of basinal fluids do not seem to have had a major impact on the distribution of larger failures, but could be locally significant for small landslides.
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- Information
- LandslidesTypes, Mechanisms and Modeling, pp. 95 - 107Publisher: Cambridge University PressPrint publication year: 2012
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