TABLE OF CONTENTS
Section 1– Fundamental aspects
FLOW LIQUEFACTION FAILURE OF SUBMARINE SLOPES DUE
TO MONOTONIC LOADINGS-AN EFFECTIVE STRESS APPROACH
E. Atigh, P. M. Byrne ................................................................................................................ 3
FINITE ELEMENT SIMULATION OF RETROGRESSIVE FAILURE
OF SUBMARINE SLOPES
A. Azizian, R. Popescu ............................................................................................................ 11
STABILITY CONDITIONS OF ACCUMULATIVE FORMS OF
SEDIMENTS ON SUBMARINE SLOPES
K. A. Bilashvili, Z.S. Savaneli ................................................................................................ 21
SIMULATING SUBMARINE SLOPE INSTABILITY INITIATION
USING CENTRIFUGE MODEL TESTING
S.E. Coulter, R. Phillips ........................................................................................................... 29
LIQUEFACTION POTENTIAL OF GASSY MARINE SANDS
J.L.H. Grozic............................................................................................................................ 37
CYCLIC STRENGTH OF STRATIFIED SOIL SAMPLES
J.-M. Konrad, S. Dubeau,......................................................................................................... 47
TOWARDS AN APPROACH FOR THE ASSESSMENT OF RISK
ASSOCIATED WITH SUBMARINE MASS MOVEMENTS
S. Leroueil, J. Locat, C. Levesque, H.J. Lee ............................................................................ 59
FINITE ELEMENT ANALYSIS OF LANDSLIDE IN DREDGED SLOPE
S. Li, Z.Q. Yue, L.G. Tham, C.F. Lee...................................................................................... 69
NUMERICAL MODELING OF TSUNAMI GENERATION
BY SUBAERIAL AND SUBMERGED LANDSLIDES
P. Lynett, P. L.-F. Liu, C. E. Synolakis.................................................................................... 77
DEVELOPING ENGINEERING DESIGN CRITERIA FOR MASS GRAVITY
FLOWS IN DEEP OCEAN AND CONTINENTAL SLOPE ENVIRONMENTS
A. W. Niedoroda, C. W. Reed, L. Hatchett, H. S. Das............................................................ 85
THE DYNAMICS OF LIQUEFIED SEDIMENT FLOW
UNDERGOING PROGRESSIVE SOLIDIFICATION
S. Sassa, J. Miyamoto, H. Sekiguchi........................................................................................ 95
EFFECT OF GAS HYDRATES DISSOCIATION ON SEAFLOOR
SLOPE STABILITY
N. Sultan, P. Cochonat, J.P. Foucher, J. Mienert,
H. Haflidason, H.P. Sejrup..................................................................................................... 103
WAVES AND RUN-UP GENERATED BY A THREE-DIMENSIONAL
SLIDING MASS
C. E. Synolakis, F. Raichlen .................................................................................................. 113
V
TSUNAMI SOURCE PARAMETERS OF SUBMARINE
EARTHQUAKES AND SLIDES
M.D. Trifunac, M.I. Todorovska............................................................................................ 121
STRUCTURAL CHARACTERISTICS OF COHESIVE GRAVITY-FLOW
DEPOSITS, AND A SEDIMENTOLOGICAL APPROACH ON THEIR
FLOW MECHANISMS
E.K. Tripsanas, W.R. Bryant, D.B. Prior ............................................................................... 129
ROLE OF PORE-FLUID PRESSURE AND SLOPE ANGLE IN TRIGGERING
SUBMARINE MASS MOVEMENTS: NATURAL EXAMPLES AND PILOT
EXPERIMENTAL MODELS
B. C. Vendeville, V. Gaullier ....................................................................................... 137
HYDRO-MECHANICAL BEHAVIOUR OF GASSY SOILS
E. Vanoudheusden, N. Sultan, P. Cochonat ........................................................................... 145
EVALUATING TSUNAMI HAZARDS FROM DEBRIS FLOWS
J. S. Walder, P. Watts ........................................................................................................... 155
PROBABILISTIC ANALYSES OF LANDSLIDE TSUNAMI HAZARDS
P. Watts ..................................................................................................................... 163
AN INNOVATIVE DOUBLE CELL TRIAXIAL SYSTEM FOR
CONTINUOUS MEASUREMENT OF THE VOLUME CHANGE
OF GASEOUS OR UNSATURATED MARINE SOILS AND TWO
OTHER ADVANCED SOIL TESTING SYSTEMS
J.-H. Yin................................................................................................................................. 171
NUMERICAL MODELING OF SUBMARINE MASS-MOVEMENT
GENERATED WAVES USING RANS MODEL
D. Yuk, S. Yim, P. L.-F. Liu................................................................................................. 183
DISPLACEMENT ANALYSIS OF SUBMARINE SLOPES
USING ENHANCED NEWMARK METHOD
N. Zangeneh, R. Popescu ....................................................................................................... 193
Section 2 – Altantic Ocean
IMAGING THE AFEN SLIDE FROM COMMERCIAL
3D SEISMIC - METHODOLOGY AND COMPARISONS WITH
HIGH-RESOLUTION DATA
J. Bulat ................................................................................................................................... 205
THE STOREGGA SLIDE COMPLEX; REPEATED LARGE
SCALE SLIDING IN RESPONSE TO CLIMATIC CYCLICITY
P. Bryn, A. Solheim, K. Berg, R. Lien, C. F. Forsberg, H. Haflidason,
D. Ottesen, L. Rise................................................................................................................. 215
DYNAMICS, VELOCITY AND RUN-OUT OF THE GIANT
STOREGGA SLIDE
F. V. De Blasio, D. Issler, A. Elverhøi, C. B. Harbitz,
T. Ilstad, P. Bryn, R. Lien , F. Løvholt................................................................................. 223
VI
ISSUES IN THE ASSESSMENT OF GRAVITY MASS FLOW HAZARD
IN THE STOREGGA AREA OFF THE WESTERN NORWEGIAN COAST
D. Issler, F. V. De Blasio, A. Elverhøi, T. Ilstad, H. Haflidason, P. Bryn, R. Lien............... 231
SHEAR-STRENGTH SIGNATURES OF MASS MOVEMENTS,
CONTINENTAL SLOPE OF CAMPOS BASIN, BRAZIL
R.O. Kowsmann, A.M. Da Costa, C. S. Amaral .................................................................... 239
PRECONDITIONS LEADING TO THE HOLOCENE TRÆNADJUPET
SLIDE OFFSHORE NORWAY
J. S. Laberg, T. O. Vorren, J. Mienert, H. Haflidason, P. Bryn, R. Lien ................................ 247
SLOPE STABILITY ASSESSMENT OF THE TRÆNADJUPET SLIDE AREA
OFFSHORE THE MID-NORWEGIAN MARGIN
D. Leynaud, J. Mienert.................................................................................................255
STABILITY ANALYSIS OF THE HUDSON APRON SLOPE,
OFF NEW JERSEY, U.S.A.
J. Locat, P. Desgagnés, S. Leroueil, H. Lee ........................................................................... 267
SLOPE FAILURES IN THE FAROE - SHETLAND CHANNEL
D. Long, A.G. Stevenson, C.K. Wilson, J. Bulat ................................................................... 281
A SYNTHESIS OF THE DISTRIBUTION OF SUBMARINE MASS
MOVEMENTS ON THE EASTERN CANADIAN MARGIN
D. J.W. Piper, C. McCall ....................................................................................................... 291
THE CHRONOLOGY AND RECURRENCE OF SUBMARINE
MASS MOVEMENTS ON THE CONTINENTAL SLOPE OFF
SOUTHEASTERN CANADA
D. J.W. Piper, D. C. Mosher, B.-J. Gauley, K. Jenner, D. C. Campbell................................. 299
INTERPLAY BETWEEN SALT ACTIVITIES AND SLOPE
INSTABILITIES, BRYANT CANYON AREA, NORTHWEST GULF
OF MEXICO
E.K. Tripsanas, W.R. Bryant, D.B. Prior, B.A. Phaneuf........................................................ 307
THE AFEN SLIDE – A MULTISTAGED SLOPE FAILURE
IN THE FAROE-SHETLAND CHANNEL
C.K. Wilson, D. Long, J. Bulat .............................................................................................. 317
CANARY ISLANDS LANDSLIDES AND TSUNAMI GENERATION: CAN
WE USE TURBIDITE DEPOSITS TO INTERPRET LANDSLIDE
PROCESSES?
R. B. Wynn, D. G. Masson .................................................................................................... 325
Section 3 – Pacific Ocean
SUBMARINE LANDSLIDES IN SOCIETY AND AUSTRAL ISLANDS,
FRENCH POLYNESIA: EVOLUTION WITH THE AGE OF EDIFICES
V. Clouard, A. Bonneville ..................................................................................................... 335
MASS MOVEMENT ALONG THE CENTRAL CALIFORNIA
MARGIN AND THEIR CONSEQUENCES FOR TSUNAMI GENERATION
H. G. Greene, S. N. Ward ...................................................................................................... 343
VII
CHARACTERISTICS OF SEVERAL TSUNAMIGENIC
SUBMARINE LANDSLIDES
H.J. Lee, R.E. Kayen, J.V. Gardner, J. Locat......................................................................... 357
CHARACTERISTICS OF LANDSLIDE GENERATED TSUNAMIS
FROM OBSERVATIONAL DATA
G.A. Papadopoulos, S. Kortekaas .......................................................................................... 367
SLOPE FAILURES AND PALEOSEISMICITY, EFFINGHAM INLET,
SOUTHERN VANCOUVER ISLAND, BRITISH COLUMBIA, CANADA
M. R. Skinner, B. D. Bornhold .............................................................................................. 375
ARCHITECTURE AND FAILURE MECHANISM OF THE
OFFSHORE SLUMP RESPONSIBLE FOR THE 1998 PAPUA NEW
GUINEA TSUNAMI
D.R. Tappin, P. Watts, T. Matsumoto.................................................................................... 383
Section 4 – Inners seas
SUBMARINE MASS MOVEMENT ON THE EBRO SLOPE
D. Casas, G. Ercilla, H. Lee, B. Alonso, A. Maldonado, J. Baraza........................................ 393
MORPHOBATHYMETRY OF SMALL-SCALE MUD RELIEFS
ON THE ADRIATIC SHELF
A. Cattaneo, A. Correggiari, D. Penitenti, F. Trincardi, T. Marsset....................................... 401
CANNIBALIZATION OF A CONTINENTAL MARGIN BY
REGIONAL SCALE MASS WASTING: AN EXAMPLE FROM
THE CENTRAL TYRRHENIAN SEA
F. L. Chiocci, E. Martorelli, A. Bosman ................................................................................ 409
EVOLUTIONARY GRAVITY FLOW DEPOSITS IN THE MIDDLE
TURONIAN - EARLY CONIACIAN SOUTHERN PROVENCE BASIN
(SE FRANCE): ORIGINS AND DEPOSITIONAL PROCESSES
M. Floquet, J. Hennuy........................................................................................................... 417
LESSONS FROM SEA-FLOOR AND SUBSEA-FLOOR IMAGERY
OF THE BIG’95 DEBRIS FLOW SCAR AND DEPOSIT
G. Lastras,, M. Canals, R. Urgeles......................................................................................... 425
PRODELTA SLOPE STABILITY AND ASSOCIATED COASTAL
HAZARDS IN TECTONICALLY ACTIVE MARGINS:
GULF OF CORINTH (NE MEDITERRANEAN)
V. Lykousis, D. Sakellariou, G. Roussakis ............................................................................ 433
VERY HIGH RESOLUTION 3D SEISMIC IMAGING OF A
COMPLEX SHELF STRUCTURE IN THE ADRIATIC SEA
B. Marsset, Y. Thomas, E. Thereau, S. Didailler, T. Marsset,
P. Cochonat, A. Cattaneo ....................................................................................................... 441
VIII
DETAILED ANATOMY OF LATE-HOLOCENE DEPOSITS
ON THE ADRIATIC SHELF FROM 3D VERY HIGH
RESOLUTION SEISMIC DATA (TRIAD SURVEY)
T. Marsset, B. Marsset, Y. Thomas, P. Cochonat,
A. Cattaneo, F. Trincardi ....................................................................................................... 449
SMALL SCALE PRESENT DAY TURBIDITY CURRENTS IN A
TECTONICALLY ACTIVE SUBMARINE GRABEN, THE GULF OF
CORINTH (GREECE): THEIR SIGNIFICANCE IN DISPERSING
MINE TAILINGS AND THEIR RELEVANCE TO BASIN FILLING
G. Papatheodorou, A. Stefatos, D. Christodoulou, G. Ferentinos .......................................... 459
SUBMARINE SLIDES DURING RELATIVE SEA LEVEL RISE:
TWO EXAMPLES FROM THE EASTERN TYRRHENIAN MARGIN
F. Trincardi, A. Cattaneo, A. Correggiari, S. Mongardi,
A. Breda, A. Asioli ..................................................................................................... 469
THE BIG’95 DEBRIS FLOW AND ADJACENT UNFAILED
SEDIMENTS IN THE NW MEDITERRANEAN SEA: GEOTECHNICAL
SEDIMENTOLOGICAL PROPERTIES, AND DATING
R. Urgeles, G. Lastras,, M. Canals, V. Willmott, A. Moreno,
D. Casas, J. Baraza, S. BERNE ................................................................................................ 479
Section 5 – Fjords
THE ROLE OF FREE GAS IN THE ACTIVATION OF SUBMARINE
SLIDES IN FINNEIDFJORD
A. I. Best, C. R. I. Clayton, O. Longva, M. Szuman.............................................................. 491
THE POINTE-DU-FORT MASS MOVEMENT DEPOSITS,
UPPER SAGUENAY FJORD, CANADA: A MULTIPHASE BUILD-UP
M. J. Duchesne, B. F. Long, P. Locat, J. Locat, M. Massé .................................................... 499
SUBMARINE MASS MOVEMENTS IN THE UPPER SAGUENAY FJORD,
(QUÉBEC, CANADA), TRIGGERED BY THE 1663 EARTHQUAKE
J. Locat, F. Martin, P. Locat, S. Leroueil, C. Levesque, J.-M. Konrad,
R. Urgeles, M. Canals, M. J. Duchesne................................................................... 509
CHARACTERISATION OF A SUBMARINE FLOW-SLIDE
AT POINTE-DU-FORT, SAGUENAY FJORD, QUEBEC, CANADA
P. Locat, J. Locat, S. Leroueil, M. J. Duchesne ..................................................................... 521
THE 1996 FINNEIDFJORD SLIDE; SEAFLOOR FAILURE AND
SLIDE DYNAMICS
O. Longva, N. Janbu, L. H. Blikra, R. Bøe ............................................................................ 531
IX