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  • Late Holocene sedimentation rates and geomorphological significance of the Ncamasere Valley, Okavango delta, Botswana
  • Botswana ; C 14 dating ; Delta ; Flood ; Habitat ; Holocene ; Humid environment ; Organic materials ; Palaeo-environment ; Palaeohydrology ; Palynology ; Valley
  • The paper presents the preliminary results of geomorphological and sedimentological investigations in the Ncamasere Valley, a seasonally back-flooded tributary of the Okavango River. Studies of organic horizons within cores indicate the differences
  • 1997
  • Griffith Taylor's palimpsest theory of the Dry Valleys of Victoria Land, Antarctica
  • Griffith Taylor was the first geomorphologist to work in the Dry Valleys of southern Victoria Land, Antarctica. He proposed a multistage model in which earlier cirque erosion was later swamped by expanding outlet glaciers. Subsequently
  • these glaciers retreated leaving the present form of the valleys. The topography retained the imprint of each episode, hence his name palimpsest theory. The A. summarises later research and compares Taylor's theory with current views.
  • 1997
  • Rate of glacial valley deepening during the Late Quaternary in Assynt, Scotland
  • Cave ; Dating ; Erosion cycle ; Erosion rate ; Glacial erosion ; Glacial features ; Glacial valley ; Interglacial ; Isotope analysis ; Quaternary ; Scotland ; United Kingdom ; Uranium
  • A dated landscape history of the Allt nan Uamh valley in the Assynt area is constructed, spanning the last 300 ka, using geomorphological analysis, U-series speleothem dating, and existing cave surveys. The mean rate of valley deepening is estimated
  • 1997
  • The geomorphology, characteristics, and origin of the freshwater marl sediments in the Great Limestone Valley, Maryland, USA
  • Certain calcareous soils occupying alluvial landscape positions in the Hagerstown (Great) limestone valley of western Maryland have developed from highly calcareous marl sediments of Holocene age.
  • 1997
  • Geomorphic analysis of late Quaternary faulting on Hilton Creek, Round Valley and Coyote warp faults, east-central Sierra Nevada, California, USA
  • Fault scarps on surficial deposits that cross the Hiton Creek and Round Valley faults document repeated ground-rupturing events on these faults in the past 15,000 to 25,000 years. These data support the concept that the faults could produce a major
  • 1997
  • Refugees, land cover, and environmental change in the Senegal River valley
  • Africa ; Desertification ; Environment ; Mauritania ; Migration ; Plant cover ; Refugees ; Remote sensing ; Sahel ; Senegal ; Soil ; Soil erosion ; Valley
  • This paper seeks to explore the complex relationships between land cover, environmental change and forced migration in the middle valley of the Senegal River, attempting both to identify the nature of environmental impacts of forced displacements
  • 1997
  • Ice structure and dynamics of the Jumeaux Glacier, Valtournance, Aosta Valley, Italy
  • 1997
  • The effect of hedonic migration decisions and region-specific amenities on industrial location : could Silicon Valley be in South Dakota ?
  • California ; Concentration industrielle ; Economie régionale ; Etats-Unis ; Localisation industrielle ; Localisation résidentielle ; Migration intérieure ; Modèle hédoniste ; Optimisation ; Préférence ; Qualité de la vie ; Silicon Valley
  • 1997
  • Rockslide movement supported by the mobilization of groundwater-saturated valley floor sediments
  • Alps (The) ; Austria ; Debris flow ; Earth surface processes ; Gravel ; Groundwater ; Loam ; Mass movement ; River bed ; Rockfall ; Sand ; Sediment transport ; Switzerland ; Valley
  • 1997
  • Business associations and the politics of urban renewal : the case of the Lower Don Valley, Sheffield
  • The paper addresses the theme of small business associations and their scope for localised political influence on a government autonomous organization by using the example of the redevelopment of the Lower Don Valley. This was where a small business
  • 1997
  • of valleys during advances of ice sheets. Detail investigations iniciated in the 1970s provided a background for stratigraphic and paleogeographic reconstructions. The climatic changes are registered in erosional-depositional sequencies especially
  • in extraglacial mountain valleys with changeable flood frequencies and tectonic tendencies. In the middle parts there is a distinct phase of continental climate. In the zone of last glaciation ice marginal streamways were developed in association with superimposed
  • valleys pattern still expanding in Holocene. - (DG)
  • 1997
  • Adaptive strategies in a mountain valley ; a case study from Baltistan
  • Adaptation ; Agricultural production ; Agro-pastoralism ; Altitudinal zonation ; Baltistan ; Data collection ; Economic strategy ; Environment ; Livestock farming ; Mountain ; Mountain farming ; Pakistan ; Valley
  • 1997
  • Subglacial preservation of valley morphology at Amundsenisen, western Dronning Maud Land, Antarctica
  • sheet covering the investigated localities is frozen to bed, and therefore has an insignificant erosional capability. The observations suggest that a large-scale subglacial sediment deposit and a small valley formed by glacial erosion have survived
  • 1997
  • High bedrock incision rates in the Atenguillo River valley, Jalisco, western Mexico
  • Base level ; Fluvial erosion ; Jalisco ; K/Ar dating ; Lava flow ; Mexico ; Palaeogeography ; Plate tectonics ; Stream ; Valley ; Vertical movement
  • 1997
  • Floodplain sedimentation and sensitivity : summer 1993 flood, upper Mississippi River valley
  • in the upper Mississippi River valley to the summer 1993 flood by comparing the response of the floodplain in the study reach to that of the floodplain reaches further downriver.
  • 1997
  • The valley of Shimshal - a geographical portrait of a remote high mountain settlement and its pastures with reference to environmental habitat conditions in the North-West Karakorum (Pakistan)
  • , located in the upper Shimshal valley and surrounded by 3 potential natural glacier dams, is of particular interest. Water supply conditions decide the potential for settlements to exist or expand. Their unprotected slope location exposes the irrgation
  • 1997
  • Hillslope soil erosion estimated from aerosol concentrations, North Halawa Valley, Oahu, Hawaii
  • Concentrations of aerosolic quartz and Cs 137 were used to estimate rates of hillslope soil erosion during 1990-91 in the North Halawa Valley on the island of Oahu, Hawaii. These estimates fall within the range of denudation rates estimated
  • 1997
  • Czech Lands ; Czech Republic ; Fluvial processes ; Geomorphogenesis ; Longitudinal section ; Palaeogeomorphology ; Slope ; Valley ; Valley floor evolution
  • 1997
  • The water resources in the Euphrates river and the Tigris river valleys and political relation between countries concerned
  • 1997
  • Thermal regime for a thufa apex and its adjoining depression, Mashai Valley, Lesotho
  • 1997