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Revised ages for laminated sediment and a Holocene-marker diatom from the northern California continental slope

Revised ages for laminated sediment and a Holocene-marker diatom from the northern California continental slope
C 14 dating ; California ; Continental margin ; Continental slope ; Diatom ; Marine sediment ; Palaeo-environment ; Quaternary ; Stratigraphy ; United States
California ; Datation C 14 ; Diatomée ; Etats-Unis ; Marge continentale ; Paléo-environnement ; Quaternaire ; Stratigraphie ; Sédiment marin ; Talus continental

Equating the basal unconformity with the palaeoplain : a model for passive margins

Australia ; Continental margin ; Continental slope ; Drainage ; Fault ; Model ; Queensland ; Rift ; Subsidence ; Vertical movement
Australie ; Drainage ; Faille ; Marge continentale ; Modèle ; Mouvement vertical ; Queensland ; Rift ; Subsidence ; Talus continental
This paper considers the palaeoplain and the basal unconformity to be the same surface. It presents a hypothesis for continental passive margins that integrates the geomorphology near the continental boundary with the offshore geomorphology
. This model explains the parallel structures of continental divide, present coast line, and continental edge. It also explains the creation of the basal unconformity in a short time, and the comparative volumes of onshore erosion and offshore sedimentation

Timing and position of Late Wisconsinan ice-margins on the upper slope seaward of Laurentian Channel

Timing and position of Late Wisconsinan ice-margins on the upper slope seaward of Laurentian Channel
Atlantic Ocean ; C 14 dating ; Canada ; Continental shelf ; Continental slope ; Glacier margin ; Gulf ; Marine quaternary ; North Atlantic Ocean ; Saint-Laurent ; Seismic reflection ; Stratigraphy ; Wisconsinan
Atlantique ; Atlantique Nord ; Canada ; Datation C 14 ; Golfe ; Marge glaciaire ; Plate-forme continentale ; Quaternaire marin ; Saint-Laurent ; Sismique réflexion ; Stratigraphie ; Talus continental ; Wisconsinien
Etude de la chronologie et de l'emplacement des marges glaciaires wisconsiniennes sur le talus continental supérieur, au large du Chenal Laurentien, à l'aide de profils de sismique réflexion.

Flow accross the continental slope off Northern Scotland

Flow accross the continental slope off Northern Scotland

Mixing on the Weddell Sea continental slope

Mixing on the Weddell Sea continental slope

Slope evolution on a flight of marine terraces in south Taranaki, New Zealand in The geomorphology of plate boundaries and active continental margins.

Slope evolution on a flight of marine terraces in south Taranaki, New Zealand in The geomorphology of plate boundaries and active continental margins.
Detailed measurement of slope profiles in the terrace-front valleys of south Taranaki demonstrates very little change in mean slope angle up to 300,000 years. This paper also tests a modified version of the model of Chappell (1974) using these slope
data but it is difficult to verify the predicted importance of solution, corrosion and mass movement processes in the slope model (30 %, 20 %, 50 % respectively).

Classification des courants marins

Classification ; Coastal current ; Continental slope ; Oceanology ; Sea current
Classification ; Courant littoral ; Courant marin ; Océanologie ; Talus continental

Erosion balance and slope evolution under continental humid temperate climate: an Appalachian example (Québec, Canada)

Erosion balance and slope evolution under continental humid temperate climate: an Appalachian example (Québec, Canada)
Appalachian Mountains ; Canada ; Chemical erosion ; Erosion budget ; Quebec ; Rill wash ; Slope ; Slope gradient ; Soil erosion ; Weathering
Solid and dissolved matter net output from a sample slope, subdivided into 5 homogeneous segments, is estimated from multi-annual erosion measurements in a small low-relief watershed covered with till-derived soils. Chemical processes prevail all
over, except on the most inclined segments (mainly in the slope inflexion zone). This is consistent with the constantly humid climate, the fresh earth material, and the dense vegetation cover. Polynomial fitting of solute and total losses against slope

Late Quaternary temperature variability in the Benguela Current System derived from Alkenones

Continental slope ; Holocene ; Marine quaternary ; Marine sediment ; Namibia ; Ocean circulation ; Sea current ; Surface temperature ; Upwelling
Circulation océanique ; Courant marin ; Holocène ; Namibie ; Paléoproductivité ; Quaternaire marin ; Remontée d'eau ; Sédiment marin ; Talus continental ; Température de surface
Three sediment cores on a transect across the continental slope off Namibia at about 23°S were investigated for alkenone-derived past sea-surface temperature (SST) and total organic carbon (TOC) content. These records are used to reconstruct

Geological observations from a submersible dive on the western continental slope of the armorican massif

Geological observations from a submersible dive on the western continental slope of the armorican massif
Observations of the first deep dive on the European Atlantic continental margin are reported. The dive was carried out with the submersible Cyana down to a depth of 2650m on the Armorican margin. A sedimentary sequence of chalk and marl, presumably

Division seuil Africano-Sicilien en régions géomorphologiques

Continental margin ; Continental shelf ; Continental slope ; Fault ; Mediterranean Sea ; Neotectonics ; Sea floor;Ocean floor ; Structural geomorphology
Faille ; Fond sous-marin ; Géomorphologie structurale ; Marge continentale ; Méditerranée ; Néotectonique ; Plate-forme continentale ; Talus continental

Tri tipa èrozionnyh form

Continental slope ; Delta ; Geomorphology ; Gully erosion ; Marine erosion ; Mountain ; Soil erosion ; Submarine canyon
Canyon sous-marin ; Delta ; Erosion des sols ; Erosion marine ; Géomorphologie ; Montagne ; Ravinement ; Talus continental
canyons du talus continental et les inférieures - de deltas de cours d'eau et de débris de ccônes au pied du talus continental.

Active deformation of the continental margin along the Nankai and Suruga Troughs, Southwest Japan

Active deformation of the continental margin along the Nankai and Suruga Troughs, Southwest Japan
as tectonic deformations of the continental margin through the Quaternary up to the present. The continental slope facing the Nankai and Suruga Troughs is highly deformed and more active than the oceanic trench itself.

Morfologiâ podvodnyh kan'onov Zapadno-Kavkazskogo rajona Černogo morâ

Black Sea ; Caucasus ; Continental slope ; Geomorphology ; Model ; Numerical model ; Sea floor ; Spectral analysis ; Submarine canyon ; Submarine geomorphology
Analyse spectrale ; Canyon sous-marin ; Caucase ; Fond sous-marin ; Géomorphologie ; Géomorphologie sous-marine ; Mer Noire ; Modèle ; Modèle numérique ; Talus continental
Modélisation numérique du relief sous-marin du talus continental. Les analyses statistique et spectrale de la morphologie du canyon incisé dans le talus continental montrent leur structure composite.

Atlantic Ocean ; Brazil ; Continental shelf ; Continental slope ; Foraminifera ; Geochemistry ; Lateglacial ; Marine sediment ; Oxygen 18 ; Palaeo-environment ; Palaeoclimate ; Palaeohydrology ; Salinity ; Sea current
Atlantique ; Brésil ; Courant marin ; Foraminifère ; Géochimie ; Oxygène 18 ; Paléo-environnement ; Paléoclimat ; Paléohydrologie ; Plate-forme continentale ; Salinité ; Sédiment marin ; Talus continental ; Tardiglaciaire
To explore the paleoclimatic role of the NBC, (North Brazil Current), the AA. studied a sediment core from the upper continental slope off northeastern Brazil. They used radiocarbon dating and oxygen isotope data for age control. Variations
in the carbonate content and the ratio between the elements Ti, Fe, and Ca were used as continental climate indicators. To reconstruct past hydrographic conditions, they measured the stable oxygen isotope ratios in the carbonate shells of 2 shallow-dwelling

The development of talus slopes around Lord Howe Island and implications for the history of island planation

The development of talus slopes around Lord Howe Island and implications for the history of island planation
Basalt ; Cliff ; Coastal environment ; Continental shelf ; Continental slope ; Digital elevation model ; Island ; Marine erosion ; Pacific Region ; Planation ; South Pacific Ocean
Aplanissement ; Basalte ; Erosion marine ; Falaise ; Ile ; Littoral ; Modèle numérique de terrain ; Pacifique ; Pacifique Sud ; Plate-forme continentale ; Talus continental
This paper investigates the evolution of talus slopes that occur beneath the loftiest cliffs, and places this analysis within the context of a longer history of island planation that has resulted in a wide truncated shelf around the island

Probable late Wisconsinan ice margin on the upper continental slope off St. Pierre Bank, eastern Canada

Probable late Wisconsinan ice margin on the upper continental slope off St. Pierre Bank, eastern Canada
Canada ; Datation C 14 ; Fond sous-marin ; Glacier ; Géographie physique ; Géophysique ; Marge glaciaire ; Newfoundland ; Paléo-environnement ; Sismique réflexion ; Talus continental ; Wisconsinien
Des profils de sismique réflexion provenant du talus continental au large du banc St. Pierre, montrent un faciès acoustique distinct, caractérisé par une incohérence de réflexion (unité E), surmontés par 5-20 m de sédiments stratifiés (unités D à

Features of cryogenic environment in soils of continental tundra and arid steppe on the southern Khangai slope under electron microscope

Features of cryogenic environment in soils of continental tundra and arid steppe on the southern Khangai slope under electron microscope
Climat continental ; Cryoclastie ; Exoscopie ; Géographie physique ; Géomorphologie climatique ; Khangai ; Microscope électronique à balayage ; Mongolie ; Montagne ; Prairie ; Périglaciaire ; Quartz ; Sol ; Steppe ; Thermoclastie ; Toundra
Afin de définir les formes et les propriétés des grains de quartz produites par le climat continental cryoaride d'Asie Centrale, des études morphoscopiques ont été réalisées sur microscopes électroniques pour des échantillons de sol provenant de

Paleo-continental slopes of East Coast geosyncline (Canadian Atlantic margin)

Paleo-continental slopes of East Coast geosyncline (Canadian Atlantic margin)
Atlantique ; Atlantique Nord ; Canada ; Datation ; Eugéosynclinal ; Fond sous-marin ; Géographie physique ; Labrador, côte ; Miogéosynclinal ; Newfoundland ; Pente continentale ; Plateau continental ; Talus continental

Late Quaternary morphological evolution of a continental margin based on emerged and submerged morphostructural features : the south-eastern Tyrrhenian margin (Italy)

Late Quaternary morphological evolution of a continental margin based on emerged and submerged morphostructural features : the south-eastern Tyrrhenian margin (Italy)
Calabria ; Continental margin ; Continental slope ; Echosounding ; Italy ; Marine seismic prospection ; Quaternary ; Structural geomorphology ; Submarine geomorphology ; Tectonics ; Tyrrhenian Sea
Calabria ; Echosondage ; Géomorphologie sous-marine ; Géomorphologie structurale ; Italie ; Marge continentale ; Mer Tyrrhénienne ; Quaternaire ; Sismique marine ; Talus continental ; Tectonique

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