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Evaluation of the simple setting theory for predicting sediment deposition by overland flow
  • Evaluation of the simple setting theory for predicting sediment deposition by overland flow
  • Belgium ; Experimentation ; Grain size distribution ; Model ; Runoff ; Sediment load ; Sediment transport ; Slope ; Slope gradient ; Suspended load
  • Experiments were conducted in the laboratory to evaluate the influence of sediment concentration, sediment grain-size distribution, bed slope and flow discharge on sediment deposition rates and patterns associated with a reduction in bed slope
  • . The experimental data clearly indicate that sediment deposition by overland flow is a very selective process. More specifically, this study investigates to what extent sediment deposition can be predicted using the simple settling theory for flows with a shear
Wet snow avalanche deposits in the French Alps : structure and sedimentology
  • Wet snow avalanche deposits in the French Alps : structure and sedimentology
  • Alps (The) ; Avalanche ; Earth surface processes ; France ; Grain size distribution ; Mountain ; Periglacial features ; Sedimentology ; Slope deposit ; Snow
  • The aim of this paper is to provide some informations on wet snow avalanche dynamics and debris transport through the analysis of 25 snow avalanche deposits on alpine screes in the Ecrins Massif, and in the Devoluy and the Vanoise massifs.
The significance of stratified slope-waste deposits in the Quaternary of Umbria - Marche Apennines, Central Italy in Periglacial processes and landforms.
  • The significance of stratified slope-waste deposits in the Quaternary of Umbria - Marche Apennines, Central Italy in Periglacial processes and landforms.
  • The phases of slope-waste accumulation are characterised by intense frost-shattering on bare slopes and subsequent reworking by gravity, slope-waste and solifluction. The oldest generation is represented by a small quantity of strongly cemented
  • and eroded materials deposited prior to 0.25-0.29 MY. The second generation is related to terraced alluvial sediments| both deposits are strongly weathered to form a fersiallitic soil of Eemian age. This soil contains artifacts of the final Acheulean
Character, age, ecological significance of Pleistocene periglacial slope deposits in Germany
  • Character, age, ecological significance of Pleistocene periglacial slope deposits in Germany
  • Bavaria ; Concept ; Dating ; Germany ; Head ; Periglacial features ; Pleistocene ; Quaternary ; Slope deposit ; Stratigraphy
  • This paper reviews concepts in Germany to study Periglacial slope deposits (PSD) stratigraphy and describes the different PSD units encountered (Upper Head, Middle Head, Lower Head). The paper is relevant to the understanding of PSDs in other mid
  • on the character and intensity of slope hydrological processes as well as on the formation and distribution of soils.
Scale model simulations of the deposition of loess in hilly terrain
  • Scale model simulations of the deposition of loess in hilly terrain
  • slopes and not on leward ones. The wind-shadow concept, which is important in the case of sand deposition may not apply to fine materials such silt and clay.
  • The sedimentation of loess in a 40 km2 area on the northern border of the Belgian loess belt, is investigated by means of wind tunnel experiments. Loess deposition is simulated on a relief scale model for different wind directions. Simulation
  • with northeast winds produces a loess deposition pattern that coincides closely to the field pattern, which may be an indication that the loess-bearing winds at the end of the Weichselian came from the northeast. Loess deposition occurs preferably on windward
Glacial deposition along an ice-contact slope : an example from the southern Lake District, Chile
  • Glacial deposition along an ice-contact slope : an example from the southern Lake District, Chile
  • Andes ; Chile ; Fault ; Glacial features ; Glaciolacustrine ; Piedmont ; Sedimentology ; Slope gradient ; Tectonic thrust
  • The AA. investigate the glaciogenic deposits at various topographic settings near the terminal position of low-profile, temperate, piedmont glaciers in the southern Lake District, Chile. Features along lower positions of the slopes include
  • glaciolacustrine sediments and large-scale thrusting. Middle slope features include low-angle subglacial thrusting of thin slices of lacustrine sediment. Upper slope features include high-angle thrusting, and lodgment and flow till. A common theme that unifies
Trois types de formations de versants hétérogènes du Pays de Galles (G.B.)
  • Three sorts of slope deposits are frequently observed in Wales. Their nature is closely reated to the bedrock: stratified screes and grèzes litées on shales and mudstones, massive block screes and slope deposits on orthoquartzites, solifluction
  • deposits forming terraces or rolling slopes on greywackes. These formations are evidence for a long period of periglacial activity during the Devensian in Wales.
Grèzes litées as a spacial type of periglacial slope sediments in the German Highlands
  • Grèzes litées as a spacial type of periglacial slope sediments in the German Highlands
  • Field and laboratory investigations into the sedimentology and geomorphology of thick stratified slope deposits (grèzes litées) in the Rothaargebirge, in the northeastern part of the Rhenish Slate Mountains show that these deposits were formed
  • by a complex of geomorphic processes involving frost weathering, episodic or periodic aquatic transport and deposition in connection with surface runoff, slopewash and active layer interflow. (l'A.).
Determining sediment thickness of talus slopes and valley fill deposits using seismic refraction - a comparison of 2D interpretation tools.
  • Determining sediment thickness of talus slopes and valley fill deposits using seismic refraction - a comparison of 2D interpretation tools.
  • Geomorphology ; Methodology ; Modelling ; Sedimentology ; Seismic reflection ; Slope deposit
Transport, sorting and deposition processes of alpine debris slope deposits in the polish Tatra mountains
  • Transport, sorting and deposition processes of alpine debris slope deposits in the polish Tatra mountains
Topographic control of periglacial slope covers, Ślęża Massif, southwest Poland : a statistical approach
  • Topographic control of periglacial slope covers, Ślęża Massif, southwest Poland : a statistical approach
  • Altitude ; Leaching ; Periglacial features ; Pleistocene ; Poland ; Slope deposit ; Slope gradient ; Spatial distribution ; Sudety ; Topography
  • The slopes of Mt Ślęża, southwest Poland, are covered by debris covers that consist of gabbro blocks. Six classes of slope covers have been distinguished based on the concentration of blocks. A map of slope covers has been digitized
  • and the following parameters have been defined : concentration of blocks on the slope, slope inclination, altitude, and aspect. The concentration of blocks has no correlation with either aspect or altitude. Instead, a dependence upon slope inclination is found
Particle size-pediment slope relations: some findings from Saudi Arabia
  • Particle size-pediment slope relations: some findings from Saudi Arabia
  • Arid area ; Crystalline rocks ; Grain size distribution ; Granite ; Pediment ; Saudi Arabia ; Slope ; Slope gradient ; Statistics ; Surface deposits
  • The proposition that pediment slope is related to debris-size is shown to be flawed. This notion was examined on 15 traverses on rock-cut pediments in the southern Hijaz region of western Saudi Arabia. Complete particle size analyses
  • of pedisediments were obtained and the moments used for pair-wise comparisons with down pediments changes in pediment slope. It is shown that simple comparisons of standardised regression coefficients are misleading and a formal test is introduced.
Effect of slope on the growth and migration of headcuts in rills
  • Effect of slope on the growth and migration of headcuts in rills
  • Gully erosion ; Mississippi ; Rainfall simulation ; Rill wash ; Sediment budget ; Slope gradient ; Soil erosion ; United States of America ; Watershed
  • experiment, but initial slope of the bed varied from 1% to 10%. The slope of the sediment deposit downstream of the migrating headcut was 2.2% for all experiments, and suggests that flow discharge and not the initial slope of the bed controlled transport
Crusted microtopography on badland slopes in southeast Spain
  • Crusted microtopography on badland slopes in southeast Spain
  • Four crust types have been recognised on badland slopes developed in Miocene marine marls of the Guadix-Baza depression. The pediment crust, is depositional in origine and is found on the surface of gently sloping pediments flanking the steep
  • badland slopes. The other three crust types, domed, tower and pinnacle developed in sequence on the steep gully side slopes. An integral part of the crust development sequence is the progressive colonisation of the surface by blue-green algae and lichen
The use of micromorphology in soil pollen analysis. The interpretation of the pollen content of slope deposits in Galicia, Spain
  • The use of micromorphology in soil pollen analysis. The interpretation of the pollen content of slope deposits in Galicia, Spain
  • Galicia ; Holocene ; Infiltration ; Lateglacial ; Micromorphology ; Palaeo-ecology ; Palaeo-environment ; Palynology ; Pollen diagram ; Quaternary ; Slope deposit ; Soil ; Spain
  • associations requires knowledge of the processes of infiltration and conservation of pollen grains in the soil material. Micromorphology is an important technique to investigate these processes. This is demonstrated in a case study of polycyclic slope deposits
Geomorfologiceskie i paleogeograficeskie aspekty problemy erozii pocv Aspects géomorphologiques et paléogéographiques du problème de l'érosion des sols
  • be traces in the erosion and deposition on slopes both unchanged and changed by the man's activity. Morphological structure of the slope's surface, form, quantity and character of elementary units the slope consists of are also importance. Soil erosion
  • brings about the deposition of deluvium. Studies of the deluvium of the past epochs require a knowledge of erosion processes, especially that of soil erosion types, rates and factors. Under natural conditions the slope wash and associated deposition
  • are restricted to dry steppes and semideserts. Human activity enlarged the scope of the process which became now azonal. In the course of the Pleistocene there were some epochs of active soil erosion and deluvial deposition similar to the present - man-induced
Notch formation processes and cliff instability in pumice flow deposits on the Asama Mountain slope, Japan
  • Notch formation processes and cliff instability in pumice flow deposits on the Asama Mountain slope, Japan
The reflection of the Holocene climatic variations in the slope and fluvial deposits and forms in the European mountains
  • The reflection of the Holocene climatic variations in the slope and fluvial deposits and forms in the European mountains
Pollen profiles of slope deposits in the Galician area (N.W. Spain).
  • Pollen profiles of slope deposits in the Galician area (N.W. Spain).
Aspects of loess and loess-derived slope deposits : an experimental and micromorphological approach.
  • Aspects of loess and loess-derived slope deposits : an experimental and micromorphological approach.