inscription
Portail d'information géographique

Résultats de la recherche (20 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Examples of the depth, sharpness and duration of ground inversions in Finnish Lapland. The data include long-term measurements at fixed points in valleys along slopes and on tops of fells as well as temporary line measurements made from a moving car.
  • A brief increase in wind intensity between 11,100 and 10,700 yr B.P. is recorded by a sharp increase in sediment grain size at eolian sections along the Nenana River in central Alaska. This occurred at the same time as the Younger Dryas climatic
  • Impregnation of rocks and soils undisturbed samples with a fluid fluorescent plastic resine allows the microscopical investigation of the porosity in U.V. epifluorescence. This technic allows very sharp observations of the size, shape
  • , interregion, interzone - according to dimension| sharp, diffusive, limbate, mosaic - according to structure| static, vacillating, transit - according to dynamics| halo-, hydro-, edapho-, litho-, tecto-, geomorpho-, climatogenic (abiogenic), phyto-, anthropo
  • The Souris River in southern Manitoba is well known as a river which shows a very sharp elbow in its course between the source south-east of Regina (Saskatchewan) and the mouth near Treesbank in Manitoba. There have been only three publications so
  • ago. This rise indicates a sharp, sustained increase in the volume of bottom water flowing through the South Atlantic after this time. Prior to about 700,000 yr ago, the amount of Antarctic Bottom Water entering the western South Atlantic was greatly
  • Nivation is an intensive thermogenous process of rock's destruction acts near snow banks in spring and summer| it as widespread in mountains and high latitudes. The nivation results from the solar energy which causes sharp contrast in temperatures