inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Résultats de la recherche (64 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Geomorphic controls on historical channel planform changes on the lower Pages River, Hunter valley, Australia
  • 2011
  • Explanatory notes of the Geomorphological map of the Alta Badia valley (Dolomites, Italy)
  • Alps (The) ; Geomorphological map ; Geomorphology ; Italy ; Mountain ; Trentino-Alto Adige ; Valley
  • This paper shows the geomorphological aspects of the Alta Badia valley (Autonomous Province of Bolzano, northern Italy), located in one of the best known areas of the Italian Dolomites, between the passes of Gardena, Campolongo and Valparola
  • -Falzarego. The paper is also aiming at illustrating the annexed Geomorphological map of the Alta Badia valley (Dolomites, Italy), at 1:20,000 scale. - (NF)
  • 2011
  • Geomorphology and environmental history in the Drava valley, near Berzence
  • Environment ; Geomorphology ; Human impact ; Hungary ; Land use ; Landscape ; Natural landscape ; Valley
  • The geomorphological and environmental history case study aims at reconstructing the environmental conditions and the different ways of land use in the surroundings of Berzence in the Drava valley (S-Hungary). The area’s geomorphological evolution
  • 2011
  • Cultivated land ; Forest ; Land use ; Slovenia ; Soil ; Soil properties ; Spatial distribution ; Valley
  • Mislinja Valley is a sub-alpine valley located in northern Slovenia. The valley is predominantly covered by forests, which occupy nearly 70 % of the area. Only 25 % of the area is covered by agricultural land. Greening is the prevalent change
  • in land use/ground cover. In addition to other factors, land use also depends on the soil properties. This article deals with the connection between soil distribution and land use in the Mislinja Valley with its hilly margins. - (IKR)
  • 2011
  • Scale variation of post-glacial sediment yield in Chilliwack Valley, British Columbia
  • British Columbia ; Canada ; Drainage network ; Holocene ; Model ; Paraglacial ; Sediment budget ; Valley
  • The Holocene volumetric sediment budget is estimated for coarse textured sediments (sand and gravel) in a large, formerly glaciated valley in southwest British Columbia. Erosion is estimated by compiling volumetric loss estimated in digital
  • 2011
  • Tors of the Chochoŧowska valley (Western Tatra mountains)
  • Applied geomorphology ; Carpathian Mountains ; Morphometry ; Poland ; Rock ; Tree line ; Valley
  • 2011
  • Geomorphology and cultural heritage of the Ponci Valley (Finalese karstic area, Ligurian Alps)
  • and land use. This paper presents the geomorphological and environmental profile of the Ponci Valley, which is located in the Finale Ligure (Savona) hinterland, and its relationship with the presence of some artefacts of Roman age (13-12 B.C.). This site
  • 2011
  • The AA. quantify erosion rates in the higher sectors of the Huasco Valley using elevation differences between 3 successive geomorphic markers (pediments and paleo-valleys) and the present day valley. Available Ar-Ar ages of Neogene pediments
  • are used to estimate mean erosion rates for the 3 periods (16 to 13 My, 13 o 8 My, and following 8 My). The landscape of the Huasco Valley is in a transient state, as indicated by well-preserved pediment surfaces in interfluves, valleys deeply incised
  • by fluvial and glacial erosion and scarped head-valleys that represent the current knickzones. Quantitative data indicate that glaciers had a much higher erosional capability than fluvial activity in the higher sectors of the Main Cordillera. Comparison
  • 2011
  • Karstic morphology control in non-carbonate rocks : Santana basin, middle Paraiba do Sul river valley, Brazil
  • features with higher frequency of caves, collapsed dolines, sinkholes and resurgences in pure quartzite (Q) and in areas with high relief, but there is no lithological control on solution dolines. Gullies, knickpoints and captured valleys are also
  • not controlled by lithology or relief. The results suggest a fluvial control of gullies and depositional features in valley bottoms caused by headward erosion, after underground captures or knickpoint disruption.
  • 2011
  • The Nyl River floodplain wetland, one of South Africa’s largest floodplain wetlands and a Ramsar site of international conservation importance, is located in an area of long-term and still active valley sediment accumulation. Creation
  • of accommodation space for sedimentation has previously been attributed to tectonic controls, but new investigations reveal that a more likely cause is progradation of coarse-grained tributary fans across the narrow river valley downstream of the main area
  • 2011
  • recognized: between non-carbonate and carbonate rocks and between different carbonate rocks. In the first case, ponors and blind valleys were formed and concave forms near the contact are infilled with non-carbonate sediments. On the contact between different
  • carbonate rocks the forms are similar but less evident, e.g. ponors, ponor steepheads and dry valleys. - (IKR)
  • 2011
  • Restoration of sheep transhumance in the Ebro Valley, Aragón, Spain
  • 2011
  • Polities, territory and historical change in Postclassic Matlatzinco (Toluca Valley, Central Mexico)
  • 2011
  • of uplift cause accelerated incision of valleys and large slope failures, it may be more important than the secular processes acting in various climatic vertical zones. The mountain glaciers during advances separate valley sides into supraglacial
  • 2011
  • The use of ablation-dominated medial moraines as samplers for 10Be-derived erosion rates of glacier valley walls, Kichatna Mountains, AK
  • The AA. use cosmogenic 10Be concentrations in amalgamated rock samples from active, ice-cored medial moraines to constrain glacial valley sidewall backwearing rates in the Kichatna Mountains, Alaska Range, Alaska. They sampled medial moraines
  • 2011
  • Holocene geomorphological processes and soil development as indicator for environmental change around Karakorum, Upper Orkhon Valley (Central Mongolia)
  • Mantles of silt- and sand-size particles including paleosols were used to reconstruct the landscape history in the upper Orkhon Valley close to the former capitals of the Uighurs (Kharbalgasin Tuur) and the Mongolian Empire (Karakorum) near
  • 2011
  • Controls on slope-to-channel fine sediment connectivity in a largely ice-free valley, Hoophorn Stream, Southern Alps, New Zealand
  • The AA. monitored fine sediment mobilization on a slope segment hydrologically connected to a stream in the ice-free Hoophorn Valley, New Zealand. Gerlach traps were installed in ephemeral slope channels to trap surficial material mobilized during
  • 2011
  • Delimitation and characteristics of natural landscapes of the Chelmo-Dobrzyń lakeland, Urszulewo plain and the neighbouring Vistula and Drwęca valleys
  • Applied geomorphology ; Hydrology ; Lake ; Land use ; Landform evolution ; Landscape ; Natural landscape ; Plain ; Poland ; Stream ; Typology ; Valley
  • 2011
  • Asian part of Russia ; Baikal ; Dating ; Geomorphology ; Glacial landform ; Glacial valley ; Pleistocene ; Relief ; Rock ; Siberia ; Valley
  • 2011
  • Dury developed mathematical relationships between the valley meander wavelength and the stream meander wavelength to define the underfit condition. This study uses modern analytical techniques and data sets to test these mathematical relationships
  • results. The theory of underfit streams fails to explain the great variability of data derived in this analysis. In fact, this study suggests that structural controls have a greater influence on modern valley architecture than hydrologic controls.
  • 2011