Glacigenic sediments and sedimentary environments on continental shelves: general principles with a case study from the Norwegian shelf in Glacial deposits in north-west Europe.
Dépôts de glaciers, d'ice-shelf, d'icebergs, de glace de mer.
Twenty three bathymetric profiles up to a depth of 28 m were surveyed along and across the western inner shelf off the Nile delta during 1919/22, 1976/77 and 1986. Comparison of these profiles establish that there are significant delta-wide changes
A reported early-man site adjacent to southern Alaska's continentalshelf: a geologic solution to an archeologic enigma
An extensive ancient archeologic site containing lithic artifacts and associated with mammoth remains was reported at Chinitna Bay, southern Alaska in 1943. The presence of such a site adjacent to the continentalshelf at the base of the rugged
Aleutian Range suggested that humans may have inhabited the inner shelf environment during the late Pleistocene at times of lowered sea level. Because of the site's potential significance, an interdisciplinary research team relocated and reinvestigated
Composition and flux of Holocene sediments on the eastern Laptev Sea shelf, Arctic Siberia
Arctic Ocean ; Asian part of Russia ; Bathymetric chart ; C 14 dating ; Climatic warming ; Continentalshelf ; Holocene ; Marine sediment ; Micro-organism ; Palaeo-environment ; Sea floor ; Sedimentation rate ; Siberia
The aim of this paper is to investigate various Holocene sediment records from a high-resolution core on the inner eastern Laptev Sea Shelf. The AMS C 14 chronology of the core allows reliable calculation of shelf sediment budgets. Because
of the close land-shelf connection, the data not only provide a detailed history of depositional regime but also contain information of the general paleoenvironmental evolution in this region during the Holocene.
Résultats récents sur la circulation tridimensionnelle sur le plateau continental nord-ouest européen. Première partie : la circulation à méso-échelle. Deuxième partie : la circulation générale
Atmospheric circulation ; Continentalshelf ; Europe ; Mathematical model ; Model ; Northwestern Europe ; Numerical model ; Ocean atmosphere interaction ; Scale ; Tide
Circulation atmosphérique ; Echelle ; Europe ; Europe du Nord-Ouest ; Interaction océan-atmosphère ; Marée ; Modèle ; Modèle mathématique ; Modèle numérique ; Plateau continental
Two mathematical models for the study of mesoscale (tides, storm, surges, ...) and macroscale (general circulation...) motions are described. The mesoscale model is applied to the simulation of the M2 tide on the North-Western European Continental
Shelf not only without wind but also in typical summer and winter conditions. Recent results are presented. The general circulation model is based on time averaged equations which explicately include mesoscale Reynolds stesses that are computed
deposits (diamictons) are interpreted as maximum ages. The consistency of corrected ages from the shelf, along with the sedimentologic interpretation, suggests a rather recent recession, perhaps mid-Holocene for this portion of the East Antarctic ice sheet
The morphology and palaeohydrology of a submerged glaciofluvial channel emerging from Waterford Harbour onto the nearshore continentalshelf of the Celtic Sea
This paper presents the results of an acoustic geophysical survey of the seabed of both Waterford Harbour and the nearshore continentalshelf south-west of Hook Head. The survey revealed a probable submerged palaeochannel. Palaeomeander geometry
This paper examines the stratigraphy and paleoenvironmental implications of a late Pleistocene nonmarine sequence found in three cores from the shelf region. The peats date to 11,300-11,000 yr B.P. and provide a limiting age for the regional
The Pleistocene lithostratigraphy exposed on northern Richards Island comprises 7 units that correlate with the offshore seismostratigraphy of the eastern Beaufort ContinentalShelf. Land-sea correlations, cryostratigraphic observations and proxy
indicators of environmental change provide a record of palaeoenvironmental history that commences before the last glacial-interglacial cycle. Major fluvial erosion during the Last Glacial-Interglacial Transition incised cross-shelf valleys and formed
Le plateau continental du NE du Newfoundland présente un relief contrasté où les bancs ne constituent que des reliefs mineurs à côté des dépressions. L'érosion subaérienne ne semble pas seule en cause. Elle intervint surtout avant la glaciation