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CHAPTER 5.2 – TABLE APPENDIXBedrock slides Maximum Minimum Type Maximum Type MinimumBedrock 42 0 Sandstone VariousSoil parent material 80 0 Rock at or near surface Cutover PeatLandcover 56 0 Bog & Heath VariousSlope 38 8 10 to 20 Less than 10Altitude 35 0 400-500 Less than 200Aspect 18 5 Northeast (22.5-67.5) North (337.5-360)Total 269 13Table 5.8a. Maximum and minimum weights and class affected for Bedrock slides.Peat Slide Maximum Minimum Type Maximum Type MinimumBedrock 36 0 Shale VariousSoil parent material 84 1 Peat VariousLandcover 82 0 Bog & Heath VariousSlope 63 0 Less than 10 More than 40Altitude 41 0 300-400 Less than 200Aspect 16 7 West(247.5-292.5) North (0-22.5)Total 322 8Table 5.8b. Maximum and minimum weights and class affected for Peat slides.Flows Maximum Minimum Type Maximum Type MinimumBedrock 29 0 limestone and shale VariousSoil parent material 58 0 Rock at or near surface Cutover PeatLandcover 37 0 Bog & Heath VariousSlope 40 0 10 to 20 More than 40Altitude 36 4 300-400 More than 500Aspect 26 3 Northeast (22.5-67.5) South (157.5-202.5)Total 226 7Table 5.8c. Maximum and minimum weights and class affected for Flows.Falls Maximum Minimum Type Maximum Type MinimumBedrock 49 0 limestone VariousSoil parent material 87 0 Rock at or near surface TillLandcover 42 0 Bog & Heath VariousSlope 42 1 30 to 40 Less than 10Altitude 39 1 300-400/400-500 Less than 200Aspect 17 3 West (247.5-292.5) Southeast (112.5-157.5)Total 276 5Table 5.8d. Maximum and minimum weights and class affected for Falls.63
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Landslides in IrelandGeological Sur
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LANDSLIDESinIRELANDEditorRonnie Cre
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CONTENTSPreface ...................
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Fig. 4.3 Forces caused by water in
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PREFACEUntil recently Ireland has b
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een very important in populating th
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involves a report on the current st
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Main Objectives• Increase public/
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1. INTRODUCTIONRonnie Creighton1.1
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1.3 The Landslides PublicationThis
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Peat flows are not nearly so well d
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In Ireland the Quaternary or uncons
Page 26 and 27: Journal - published papersLetter -
Page 28 and 29: Fig. 3.1 Two images showing the use
Page 30 and 31: Table 3.1 Landslide Events Per Coun
Page 32 and 33: Fig. 3.3 Location map of the Pollat
Page 34 and 35: 3.7.4 Quaternary GeologyQuaternary
Page 36 and 37: 3.8 The Derrybrien Landslide - 2003
Page 38 and 39: • The classification scheme shoul
Page 40 and 41: The force causing the block to slid
Page 42 and 43: Plate 4.1 Herringbone drainage syst
Page 44 and 45: 1210Number of events864Raised bogBl
Page 46 and 47: It is well known by research at Uni
Page 48 and 49: 5. LANDSLIDE SUSCEPTIBILITY MAPPING
Page 50 and 51: Two simplified hypothetical example
Page 52 and 53: 5.1.4 Mapping and GISBy definition,
Page 54 and 55: Platform / sensor pixel resolution(
Page 56 and 57: For this initial run, the criteria
Page 58 and 59: 42Fig. 5.5 Peat and peaty podzols f
Page 60 and 61: for susceptibility mapping purposes
Page 62 and 63: elationships between developed susc
Page 64 and 65: The methodology used to derive the
Page 66 and 67: 50Fig. 5.12. Landslide susceptibili
Page 68 and 69: 52Table 5.6. Landslide classificati
Page 70 and 71: The percentage of events occurring
Page 72 and 73: with slope, overall 20-25% of all e
Page 74 and 75: As the dataset was not available at
Page 80 and 81: SusceptibilityEqual intervalManual
Page 82 and 83: taken in the NSS and provide a regi
Page 84 and 85: There is no specific reference to r
Page 86: 6.6 Recommendations for the inclusi
Page 89 and 90: Three principal categories of slope
Page 91 and 92: 3. Rock FallsRock falls are an ever
Page 93: of peat slides. To avoid this, GSNI
Page 96 and 97: More recently Dykes, Kirk and Warbu
Page 98 and 99: Preliminary conclusions from this r
Page 100 and 101: Peat Landslides in Co. WicklowNoel
Page 102 and 103: The largest failure is found on the
Page 104 and 105: landslide losses of $4 billion annu
Page 106 and 107: • Publication and distribution of
Page 108 and 109: 9.3 Strategic framework for future
Page 110 and 111: Hanrahan, E.T and Walsh, J.A. 1965.
Page 112 and 113: APPENDIX 1Irish Landslides Working
Page 114 and 115: Landslide VulnerabilityThe degree o
Page 116 and 117: Depletion (16)The volume bounded by
Page 118 and 119: 102APPENDIX 5
Page 120 and 121: 104
Page 122 and 123: APPENDIX 6Landslides Bibliography f
Page 124 and 125: Prior, D.B. and Graham, J. 1974. La
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