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PORTAIL D'INFORMATION GÉOGRAPHIQUE

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Par Collection Par Auteur Par Date Par Sujet Par Titre
  • One-centimeter interval Pb 210 dating and 4 cm interval size analysis was carried on on sediment core collected in a prodelta depositional environment near the head of Saguenay Fjord. Results show a direct relationship between modal diameter
  • of the sand fraction and annual maximum mean monthly river discharge-associated with the spring freshet. Clay pellet zones observed in a gravity core are related to catastrophic events such as the 1971 St Jean Vianney landslide or to anthropogenic activities
  • 1983
  • Past atmospheric environments revealed by polar ice core studies
  • 1983
  • Seismic and drill-core surveys showed that the quartz sandstone superposes an unconsolidated, mechanically produced Upper Proterozoic weathering crust. Excavations and sedimentological analyses revealed that the local tors developed in coarse
  • 1983
  • The change in soil types observed at the eastern and western marginal regions of the core areas of the sub-Hercynian arid region is primarily due to a change in the substratum conditions. (HL).
  • 1983
  • Data on glacier, tree-line, tree-ring, pollen, and ice-core variations in North America, Greenland and Europe during the last 2000 yr (up to AD. 1800) are compared in detail on the century time scale.
  • 1983
  • A palynological analysis of a Quaternary, deep-water marine sedimentary core from Southern Brazil (South Atlantic Ocean: 3333S| 4828W) has been performed. Sea transgressions and regressions have been interpreted analyzing the relation between pollen
  • 1983