Glacial-marine sedimentation and Quaternary glacial history of Marguerite Bay, Antarctic Peninsula
Antarctique ; Fond sous-marin ; Glaciaire ; Géographie des régions polaires ; Holocène ; Marguerite Bay ; Niveau marin ; Paléoclimat ; Paléogéographie ; Quaternaire ; Sismique réflexion ; Sédimentologie
Piston cores and single-channel seismic reflection data were collected during the Deep Freeze 85 and 86 expeditions to determine the late Quaternary history of the area. Seismic data in the bay show a rugged seafloor, with numerous deep troughs
and a very thin layer of sediment over crystalline basement or older sediments. A reconstruction of the glacial history of Marguerite Bay since the last glacial maximum shows grounded ice filling the bay in late Wisconsin time. Rising sea level caused
Geomorphology of the onset area of a paleo-ice stream, Marguerite Bay, Antarctic Peninsula
Antarctique ; Bathymétrie ; Drainage ; Drumlin ; Eau de fonte ; Erosion glaciaire ; Glaciaire ; Géomorphologie ; Héritage géomorphologique ; Marguerite Bay ; Sismique marine ; Zone froide
the Last Glacial Maximum. Ice drainage within the bay and on the inner continental shelf was strongly influenced by tectonic fabric. The glacially sculptured geomorphic features within Marguerite Bay co-exist with anastomosing, radial and relatively
straight channels, which become increasingly focused in a seaward direction. This implies that a well organized subglacial drainage system existed within the bay at some point in the past.
Alaska's Glacier Bay National Park and Preserve is one of the most dynamic landscapes in North America. Since George Vancouver charted an ice-choked coast in 1794, the glacier has receded over 160 km, providing new habitat for biotic succession
Some glaciogenic landforms in Glacier Bay National Monument, Southeastern Alaska in Moraines and varves. Origin/Genesis/Classification.
Alaska ; Arctique ; Cartographie thématique ; Esker ; Glaciaire ; Glacier Bay National Monument ; Géographie des régions polaires ; Géomorphogenèse ; Moraine de fond ; Till ; Traine de débris
Fisheries of the James Bay area and northern Canada: a case study in resource management in Renewable resources and the economy of the North.. (Proceedings)
Canada ; Faune ; Gestion des ressources ; Géographie de l'Amérique ; James Bay ; Nouveau Québec ; Pêche ; Pêcherie ; Québec ; Ressources halieutiques ; Ungava
of Hudson Bay were icefree between substage 5e and the Holocene. Some implications of this conclusions are briefly discussed in light of current ideas about the dynamics of the Laurentide Ice Sheet.
Salinity of marshes along the James Bay coast, Ontario, Canada
The salinities of tide water and sediments from the northern and the southern sectors of the coastal marshes are compared. In the north, Bay water of relatively high salinity is introduced to the marsh by tides, as is generally found in coastal
marshes elsewhere. The tidewater in southern James Bay has low salinity and the salt in the marsh is released by molecular diffusion from relict salt deposited with the post-glacial Tyrrell sea sediments. This study demonstrates that the salt in coastal
Grandiose plans, but insignifiant outcomes : the development of colonial ports at Twofold Bay, New South Wales
The paper examines the period between 1820 and 1920 to explain why the ports of Twofold Bay-Boydtown and Eden never sustained their challenge to Sydney's economic hegemony. These small ports provide an interesting insight into the economic
marginalisation of localities by the process of colonisation. Twofold Bay is examined within Rimmer's spatial model of port development. Uneven port development is examined as the geographical expression of several colonisation processes.
Postglacial vegetation and climate change in the Northern Bristol Bay region, Southwestern Alaska
Alaska ; Bay ; Bristol ; C 14 dating ; Climatic variation ; Palaeo-environment ; Palynology ; Pollen diagram ; Postglacial ; Quaternary
Pollen analysis of sediment cores from Grandfather and Ongivinuk Lakes reveals a record of postglacial vegetation and climate change in the northern Bristol Bay region. The chronology is based on six conventional 14C dates of bulk organic matter
Sea ice breakup and tidal flat processes, Frobisher Bay, Baffin Island
Arctique ; Arctique canadien ; Baffin Land ; Capacité de charge ; Débâcle glaciaire ; Frobisher Bay ; Glaciel ; Géographie des régions polaires ; Littoral ; Transport sédimentaire ; Wadden ; Zone froide ; Zone intertidale
Etude du transport sédimentaire dans la zone intertidale de Frobisher Bay, ou moment de la débâche glaciaire. La capacité de charge et le transport sédimentaire augmentent alors de façon considérable (63 000 t km2 et transport de blocs).
Drainage patterns and tectonic around Milne Bay, eastern Papua New Guinea
Géographie de l'Océanie ; Géomorphogenèse ; Milne Bay, région ; Néotectonique ; Paléorivage ; Papouasie-Nouvelle Guinée ; Quaternaire marin ; Réseau de drainage ; Tectonique
Bay, qui a été interprétée comme un fossé tectonique, semblerait en réalité une dépression d'angle de faille, seule la côte S correspondant à une faille.
Morphology and sediments of the emergent Ontario coast of James bay, Canada
Canada ; Cartographie thématique ; Géographie de l'Amérique ; Géomorphodynamique ; Hudson Bay ; Isostasie ; James bay ; Ligne de rivage ; Littoral ; Milieu saumâtre ; Niveau marin ; Ontario ; Périglaciaire ; Sédimentologie ; Zone froide
Gefässpflanzen von Oobloyah Bay, N-Ellesmere Island, N. W. T., Kanada: eine kommentierte Pflanzenliste und phänologische Beobachtungen = Vascular plants of the Oobloyah Bay region, northern Ellesmere Island, N. W. T., Canada: an annotated list
Gesteinstemperaturen und Insolationsverwitterung im hocharktischen Bereich, Oobloyah Bay, N-Ellesmere Island, N. W. T., Kanada = Rock temperatures and insolation weathering in the High Arctic, Oobloyah Bay, northern Ellesmere Island, N. W. T
Jungquartäre Delta-und Flussentwicklung im glazialisostatischen Hebungsraum der Oobloyah Bay auf N-Ellesmere Island, N. W. T., Kanada = Delta and river history in the glacioisostatic uplift region of the Oobloyah Bay during the younger Quaternary