inscription
Portail d'information géographique

Résultats de la recherche (38 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Antarctica ; Chronology ; Glaciation ; Isotope dating ; Pleistocene ; Quaternary
  • 1998
  • Asian part of Russia ; C 14 dating ; Charcoal ; Climatic variation ; Forest ; Forest fire ; Geochemistry ; Holocene ; Humid environment ; Isotope analysis ; Palaeo-ecology ; Peat bog ; Pollen analysis ; Quaternary ; Siberia
  • chrysophytes, isotopes stables et charbon. Essai de reconstitution paléo-écologique. Il semble que la combinaison des incendies et des conditions du climat contrôle la spécificité et la composition des forêts près de la limite des arbres dans la vallée de la
  • 1998
  • Clay mineral ; Freezing ; Isotope dating ; Lithology ; Mountain ; Palaeo-environment ; Periglacial features ; Quaternary ; Scotland ; United Kingdom ; Weathering
  • 1998
  • disequilibrium dates from 3 independent Amblyrhiza sites in Anguilla, all of which cluster in marine isotope Stage 5. They argue that the most probable cause of the extinction of Amblyrhiza was a failure of island populations to adjust to catastrophic reductions
  • 1998
  • and wetter conditions than at present, implying a climatic optimum. However, the S5 is a paleosol complex corresponding in time to a period of weak glacial-interglacial oscillations, as recorded by marine oxygen-isotope stages 15 through 13. To understand
  • 1998
  • Atlantic Ocean ; C 14 dating ; Climatic variation ; Foraminifera ; Glacier fluctuation ; Ice sheet ; Iceberg ; Isotope analysis ; Marine quaternary ; Marine sediment ; North Atlantic Ocean ; Oceanic ridge ; Oxygen ; Palaeo-environment
  • 1998
  • of the Peoria Silt might be developed. The potential use of MS as a paleoclimate indicator by correlation to the marine oxygen isotope record is also addressed. The additional loess compositional data and field observations presented in this study build upon
  • 1998
  • Atlantic Ocean ; Climatic variation ; Glacial features ; Ice core ; Isotope analysis ; Marine quaternary ; Marine sediment ; North Atlantic Ocean ; Palaeoclimatology ; Surface temperature
  • 1998
  • Antiquity ; Archaeology ; Bay ; Brittany ; Coastal dune ; Coastal environment ; Dating ; Finistère ; France ; Geochronology ; Holocene ; Isotope dating ; Palaeo-environment ; Prehistory ; Protohistory ; Sea level ; Sedimentology
  • 1998
  • In this paper, the AA. discuss stable isotope and stratigraphic data from an ice core obtained from a rock glacier at Galena Creek, northwestern Wyoming, USA. They have presented new, independent evidence that the Galena Creek rock glacier
  • 1998
  • Calcrete ; Carbonate ; Freezing ; Geochemistry ; Glacier ; Isotope analysis ; Meltwater ; Roughness ; Switzerland ; Valais
  • 1998
  • Alluvial channel ; England ; Floodplain ; Fluvial processes ; Isotope analysis ; Sediment budget ; Stream ; Suspended load ; United Kingdom ; Watershed ; Yorkshire
  • 1998
  • Agricultural land use ; Agricultural practice ; Agropedology ; Erosion rate ; Geochemistry ; Germany ; Isotope analysis ; Saarland ; Soil erosion
  • 1998
  • view, a shallow sea linked the Gulf of Kachchh to the Gulf of Khambhat only in a time period around Marine Isotope Stage 5. The studies also suggest that the Nal region itself may not have witnessed any major uplift (beyond 10 m) during late Quaternary.
  • 1998
  • Arctic Region ; Cold area ; Erosion ; Geochemistry ; Isotope analysis ; Meltwater ; Permafrost ; Polar region ; Rill wash ; Solution load ; Spitsbergen ; Suspended load ; Svalbard ; Watershed
  • 1998
  • China ; Chronology ; Climatic variation ; Dating ; Holocene ; Inner Mongolia ; Isotope analysis ; Lacustrine sedimentation ; Lake level ; Palaeoclimatology ; Palaeogeography ; Palaeolake ; Palaeomagnetism ; Pleistocene ; Quaternary
  • 1998
  • Alps (The) ; C 14 dating ; Correlation ; Deglaciation ; Europe ; Fossil fauna ; Glacial features ; Glacier ; Greenland ; Isotope analysis ; Lateglacial ; Oxygen 18 ; Palaeomagnetism ; Quaternary ; Vegetation
  • 1998