inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Résultats de la recherche (3 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Textural, geochemical and mineralogical evidence for the origin of Peoria loess in central and southern Nebraska, USA
  • Eolien ; Etats-Unis ; Fluvioglaciaire ; Géochimie ; Loess ; Minéralogie ; Modèle ; Nebraska ; Paléogéographie ; Pléistocène ; Rocky Mountains ; Statistique
  • Aeolian features ; Fluvioglacial features ; Geochemistry ; Loess ; Mineralogy ; Model ; Nebraska ; Palaeogeography ; Pleistocene ; Rocky Mountains ; Statistics ; United States of America
  • Possible sources of Peoria loess in central Nebraska have been investigated through the fingerprinting of the textural, geochemical and mineralogical characteristics of the loess and possible source sediments, with statistical comparison
  • of the textural and compositional fingerprints. The results contrast with the desert loess model proposed by Lugn (1960), and are instead consistent with the derivation of the Peoria loess in Nebraska primarily from fluvio-glacial outwash sediments carried
  • 1995
  • The AA. report on geobotanical associations related to forest fires, slope failures, rivers, and glaciers. The work was conducted in the Niobrara valley of the Great Plains of Nebraska, Tensleep Canyon of the Bighorn Mountains, Yellowstone-Teton
  • 1995
  • Accounts published by early explorers indicate that at least parts of dune fields in Nebraska, Colorado, Kansas, New Mexico, and Texas were active in the 19th century. Based of an index of dune mobility and a regional tree-ring record, the probable
  • 1995