inscription
Portail d'information géographique

Résultats de la recherche (158 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • SEDIMENT ANALYSIS OF A PREHISTORIC ROCKSHELTER: THE ABRI PATAUD
  • DISCUSSION DES METHODES SEDIMENTOLOGIQUES ET DE LEURS RESULTATS SUR L'EXEMPLE DE L'ABRI PATAUD, GISEMENT PREHISTORIQUE DE DORDOGNE (FRANCE).
  • Human populations and cultural adaptations in the Sahara and Nile during prehistoric times in The Sahara and the Nile. Quaternary environments and prehistoric occupation in northern Africa.
  • Prehistoric settlements along the Main Nile in The Sahara and the Nile. Quaternary environments and prehistoric occupation in northern Africa.
  • The environmental adaptation of nomads in the West African Sahel: a key to understanding prehistoric pastoralists in The Sahara and the Nile. Quaternary environments and prehistoric occupation in northern Africa.
  • Late Holocene sea-level changes seen from prehistoric settlements
  • Radiocarbon dates from prehistoric human settlements in Varanger, Finnmark, North Norway, are used to examine Holocene relative sea-level changes. (JH).
  • Relation of loess units and prehistoric find density in the Garzweiler open-cast mine, Lower Rhine
  • The article deals with the loess budget and the prehistoric finds in Lower Rhine. A statistically search for prehistoric finds recovered during prospections yielded 1131 Palaeolithic bones and artefacts that could be as signed to the detailed
  • stratigraphy. Most of the finds belongs to two periods, MIS 4 and MIS 2. The prehistorically finds it compares with the loess units. - (IfL)
  • Unearthing prehistoric cultural landscapes: a view from Australia
  • The aim of this paper is to draw together current work in physical and cultural geography in pursuit of a more sophisticated analysis of prehistoric cultural landscapes than has hitherto been possible.
  • Measurement of significant marine paleotemperature variation using black abalone shells from prehistoric middens
  • The AA. introduce a new method to document water paleotemperature cycles using archaeological specimens. They use developmental trajectories of abalone from dated, stratified archaeological deposits to reconstruct prehistoric seawater temperatures.
  • Perspectives on prehistoric and recent gullying in central Zimbabwe in Soil erosion and host materials in Africa.
  • This investigation provides prehistoric and historical perspectives on the current erosion problem in extensive gully systems developed on sodic soils near St. Michael's Mission, central Zimbabwe. Specifically, the study focuses : 1
  • ) on the colluvial sediments exposed in the gully particularly with a view to determining the timing and nature of prehistoric gullying, 2) the main factors affecting gully growth since the 1940s, and 3) small-scale influences on present day headcut recession.
  • Desertifikation der Sahara in der Vorzeit? Prähistorisch-archäologische Erkenntnisquellen. (Did desertification occur in the Sahara during prehistoric times? Archeologic and prehistoric evidences)
  • The isthmus of Panama as a crossroads of prehistoric migrations of domesticated plants in Famine in the focus of geography.
  • Analytical study by X Ray diffrection and Scanning Microscope of highly weathered prehistoric flints. Thanks to ressembling of debitage products, differently weathered though they are coming from the same core, it is proved that a part of the silica
  • of some prehistoric tools or flakes has been solubilized by water.
  • Holocene ecology and prehistory in the Egyptian Sahara in The Sahara and the Nile. Quaternary environments and prehistoric occupation in northern Africa.
  • Evolution of the Nile Basin in The Sahara and the Nile. Quaternary environments and prehistoric occupation in northern Africa.
  • The Sahara and the Nile. Quaternary environments and prehistoric occupation in northern Africa.
  • Domesticated cattle in the Sahara and their introduction into West Africa in The Sahara and the Nile. Quaternary environments and prehistoric occupation in northern Africa.
  • Origins of plant domestication in the Sahara and the Nile Valley in The Sahara and the Nile. Quaternary environments and prehistoric occupation in northern Africa.
  • Present and prehistoric problems of natural resources
  • Prehistoric sites and implements in Cameroon. An annex to the Interim report of the Tropical African Geomorphology Research Project, 1975-1976.
  • Human-induced erosion in a highlands catchment in Papua New-Guinea : the prehistoric and contemporary records
  • Analysis of very much more comprehensive data sets has allowed the AA. to calculate with greater accuracy prehistoric rates of sediment accumulation in the swamp, and hence to infer erosion rates in the contributing catchment. In addition they have
  • monitored the current rate of sediment loss from the catchment, enabling comparisons to be made between prehistoric and contemporary rates of erosion.