inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Résultats de la recherche (455 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Rock slope failures associated with deglaciation : some examples from glaciated valleys in the Swiss Alps
  • Alps (The) ; Deglaciation ; Geochronology ; Glacial valley ; Mass movement ; Mountain ; Periglacial features ; Postglacial ; Slope dynamics ; Switzerland
  • This paper describes some possible examples of paraglacial slope failures, based on observations in the Swiss Alps, and proposes several types and magnitudes of slope response to deglaciation, which may reflect lithology, geological structure, pre
  • -deglaciation topography and the magnitude of deglaciation. Slope failures are broadly classified into new (post-Little Ice Age) and old (postglacial) features.
  • New radiocarbon dates for early deglaciation from the southeastern Coast Mountains of British Columbia
  • This note presents the dates and discusses their significance in the context of the chronology of deglaciation within the southern Coast Mountains.
  • Deglaciation and volcano-seismic activity in Northern Iceland : Holocene and early Eemian
  • Deglaciation ; Eemian ; Holocene ; Iceland ; Interglacial ; Quaternary ; Rift ; Seismicity ; Stratigraphy ; Tephrochronology ; Volcanism
  • with deglaciation. Comparison with Late Glacial/Holocene deglaciation deposits is provided. Most of the described outcrops are located within the present-day active microseismic zone.
  • Temporal scales and deglaciation rythms in a polar glacier margin, Baronbreen, Svalbard
  • Arctic Region ; Climatic variability ; Deglaciation ; Earth surface processes ; Geomorphology ; Sedimentology ; Svalbard
  • Holocene deglaciation, sea-level change, and the emergence of the Windmill Islands, Budd Coast, Antarctica
  • Antarctica ; C14 dating ; Coastal environment ; Deglaciation ; Geochronology ; Holocene ; Palaeo-environment ; Quaternary ; Sea level
  • Fieldwork was conducted in the Windmill Islands during the 1985-1986 and 1987-1988 summers. The surficial sediment cover and raised marine features were surveyed and sampled to determine a chronology for deglaciation and emergence. The fieldwork
  • High deglaciation rates in Denmark during the Late Weichselian. Implications for the palaeoenvironment
  • Climatic variation ; Deglaciation ; Denmark ; Glacial ablation ; Jylland ; Model ; Palaeo-environment ; Quaternary
  • This paper concentrates on Late Weichselian deglaciation rates and the different mechanisms that might have caused the rather rapid collapse of the Danish sector of the Weichselian ice sheet. The analysis will be attempted by applying the improved
  • Climatic influences of deglacial drainage changes in Southern Canada at 10 to 8 KA suggested by pollen evidence
  • Canada ; Climatic variation ; Deglaciation ; Meltwater ; Palaeo-environment ; Palaeoclimate ; Palynology ; Pollen diagram
  • The purpose of this paper is to document and review further palynological evidence in relation to climatic response (or lack of it) to deglacial drainage changes for the period 10 to 8 ka throughout the Agassiz-Upper Great Lakes region
  • Ice margins and deglaciation in the Berlin area between Brandenburg and Frankfurt end moraines. A review
  • Last ice sheet dynamics and deglaciation in the North European Plain
  • Brandenburg ; Deglaciation ; Germany ; Glacial tectonics ; Kame ; Moraine ; Palaeogeography ; Quaternary
  • Modelling of the thermal conditions at the Greenland ice sheet margin during Holocene deglaciation: boundary conditions for moraine formation
  • Boundary ; Deglaciation ; Greenland ; Holocene ; Ice sheet ; Model ; Moraine ; Quaternary ; Soil temperature ; Temperature
  • The specific geomorphological problem addressed in this paper is which thermal conditions determined moraine formation in west Greenland during Holocene deglaciation. Ice sheet modelling and geothermal research are used to delineate boundary
  • Antarctica ; Cold area ; Deglaciation ; Glaciation ; Mass movement ; Model ; Moraine ; Periglacial features ; Quaternary
  • the nature and timing of sedimentary processes during and after deglaciation, and the impact of these processes on landscape development. Observations of late Quaternary glaciation and deglaciation of the area and contemporary depositional processes
  • are reported, and a conceptual model of geomorphological change since deglaciation is presented.
  • Sorted polygons on recently deglaciated terrain in the highland of Mælifellsandur, South Iceland
  • Cold area ; Deglaciation ; Freeze-thaw cycle ; Freezing ; Iceland ; Moraine ; Soil wedge polygon ; Splash ; Wind
  • This note directs attention to sorted polygons which are rapidly forming on a recently deglaciated ground moraine in the highland of Mælifellssandur, an area where permafrost is absent. It is concluded that in this area the formation oof sorted
  • Hummocky moraine landscape on Jaeren, SW Norway - implications for glacier dynamics during the last deglaciation
  • Cold area ; Deglaciation ; Glacial features ; Moraine ; Norway ; Quaternary ; Sedimentology
  • of glacio-dynamics and retreat pattern during the last deglaciation are discussed.
  • Landslide activity in response to alpine deglaciation : the case of the Belluno Prealps
  • Alps (The) ; Climatic variation ; Deglaciation ; Geochronology ; Italy ; Landslide ; Mountain ; Quaternary
  • relationship between mass movements and glacial or fluvial features, but poorly based on radiometric dating. The aim of this study is improving the existing data set on landslide chronology to clarify the relationship between deglaciation and landslides
  • PENULTIMATE PERIOD OF DEGLACIATION IN THE GRUDZIADZ BASIN, LOWER VISTULA RIVER VALLEY: AN INTERSTADIAL-LIKE INTERVAL OF THE MIDDLE WURM
  • The last glaciation and deglaciation of central Norway in Glacial deposits in north-west Europe.
  • Late Weichselian glaciation and deglaciation in Scandinavia in Quaternary glaciations in the Northern Hemisphere.
  • Late Pleistocene deglaciation of Mount Kenya
  • Deglaciation of the northern foothills in the East Kunlun Mts
  • China ; Dating ; Deglaciation ; Glacial features ; Kame ; Moraine ; Mountain ; Palaeogeography ; Piedmont ; Quaternary ; Thermoluminescence ; Tibet
  • Results of field investigations at the northern foot of East Kunlun Mts. as well as the known so far literature data allowed a reconstruction to be made of the history and type of glaciation and deglaciation of this area during the Late Pleistocene
  • that local deglaciation of the investigated foot of the East Kunlun Mts took place early in the Holocene, around 8 000 years BP.
  • Late Weichselian deglaciation of Denmark: some general problems
  • Last ice sheet dynamics and deglaciation in the North European Plain
  • Climatic variation ; Cold area ; Deglaciation ; Denmark ; Model ; Palaeogeography ; Quaternary ; Radiation ; Wind
  • This paper concentrates on the Late Weichselian deglaciation rates and the different mechanisms that might have caused the rather rapid wastage of the Danish sector of the ice sheet. The analysis is carried out using the improved possibility
  • Determination of Cl 36 production rates derived from the well-dated deglaciation surfaces of Whidbey and Fidalgo Islands, Washington
  • British Columbia ; C 14 dating ; Canada ; Dating ; Deglaciation ; Erratic boulder ; Ice sheet ; Isotope dating ; Lithology ; Moraine ; Palaeo-environment ; Pleistocene ; Quaternary ; United States of America ; Washington State
  • of 23 samples collected from a late Pleistocene dacite flow in southwestern British Columbia and three disparate deglaciated localities in northern Washington and southern British Columbia. The dacite flow and the three deglaciation localities are dated