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Academic literature on the topic 'Dépôts alluviaux'
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Journal articles on the topic "Dépôts alluviaux"
El Kayssi, Youssef, Ilias Kacimi, and Mohamed Hilali. "Caractérisation et modélisation d'une nappe alluviale dans une zone montagneuse semi-aride (cas de la nappe d'Er-Rich, Haut Atlas, Maroc)." La Houille Blanche, no. 5-6 (December 2019): 26–34. http://dx.doi.org/10.1051/lhb/2019046.
Full textAndigué, Job, Lahoté Baohoutou, Bédjaoué Moupeng, Keudeu Passiring, Hubert Ndjafa Ouaga, and Jean Riser. "Les dépôts alluviaux récents des vallées du Chari et du Logone au sud du lac Tchad (République du Tchad) [The recent alluvial deposits of the Chari and Logone valleys on the south side of the lake Chad (Republic of Chad)]." Quaternaire 12, no. 3 (2001): 149–55. http://dx.doi.org/10.3406/quate.2001.1688.
Full textDebals, Benoît. "Mise au point sur la chronostratigraphie des dépôts alluviaux quaternaires de la Plaine du Roussillon : exemple de la vallée de la Têt (France) [A new regard on the quaternary alluvial deposits chronostratigraphy from the Roussillon : the case of the Têt valley (France).]." Quaternaire 11, no. 1 (2000): 31–39. http://dx.doi.org/10.3406/quate.2000.1653.
Full textChaussé, Christine, Nicole Limondin-Lozouet, Serge Occhietti, Pierre Voinchet, and Jean-Christophe Bacon. "La Nappe alluviale de Soucy-Les-Grandes-Pièces (Yonne, France) : reconstitution pluridisciplinaire du fonctionnement d’un cours d’eau du Pléistocène moyen." Géographie physique et Quaternaire 54, no. 2 (2002): 187–208. http://dx.doi.org/10.7202/004779ar.
Full textDionneI, Jean-Claude, and Augusto Pérez Alberti. "Structures cylindriques verticales dans un dépôt meuble Quaternaire, en Galice (Espagne)." Géographie physique et Quaternaire 54, no. 3 (2002): 343–49. http://dx.doi.org/10.7202/005640ar.
Full textDumousseau, B., P. Jaudon, C. Massiani, E. Vacelet, and Y. Claire. "Origine du manganèse de la nappe alluviale de Beaucaire (Gard, France) Essai de démanganisation in situ (procédé Vyredox)." Revue des sciences de l'eau 3, no. 1 (2005): 21–36. http://dx.doi.org/10.7202/705063ar.
Full textMiramont, Cécile, Maurice Jorda, and Georges Pichard. "Évolution historique de la morphogenèse et de la dynamique fluviale d’une rivière méditerranéenne : l’exemple de la moyenne durance (France du sud-est)." Géographie physique et Quaternaire 52, no. 3 (2002): 381–92. http://dx.doi.org/10.7202/004855ar.
Full textDionne, Jean-Claude. "Note sur les variations du niveau marin relatif à l’Holocène, à Rivière-Ouelle, côte sud du Saint-Laurent." Géographie physique et Quaternaire 42, no. 1 (2007): 83–88. http://dx.doi.org/10.7202/032711ar.
Full textPerras, Sylvain, Ferdinand Bonn, Hugh Gwyn, and Jean-Marie Dubois. "Classification multi-spectrale et apport de la bande TM7, dans la distinction des dépôts meubles de l'île d'Anticosti, Québec." Canadian Journal of Earth Sciences 22, no. 8 (1985): 1139–48. http://dx.doi.org/10.1139/e85-116.
Full textBabut, M., Y. Perrodin, M. Bray, et al. "Évaluation des risques écologiques causés par des matériaux de dragage: roposition d'une approche adaptée aux dépôts en gravière en eau." Revue des sciences de l'eau 15, no. 3 (2005): 615–39. http://dx.doi.org/10.7202/705472ar.
Full textDissertations / Theses on the topic "Dépôts alluviaux"
Le, Coz Mathieu. "Modélisation hydrogéologique de dépôts hétérogènes : l'alluvium de la Komadougou Yobé (bassin du lac Tchad, sud-est nigérien)." Thesis, Montpellier 2, 2010. http://www.theses.fr/2010MON20140/document.
Full textThe downstream part of the Komadugu Yobe River is an important recharge area for the Lake Chad Quaternary aquifer. Since the 1980s, cash crop development (e.g. sweet pepper) has led to the doubling (1995-2005) of irrigated surfaces in the vicinity of the river. A modeling approach of vertical water fluxes through the vadose zone (0-8 m) was designed to quantify the related increase in groundwater recharge. The first step, which is the main topic of this PhD thesis, consisted in describing both spatial arrangement and hydrodynamic properties of the sedimentary bodies that make up the alluvium.Boreholes in surficial deposits highlighted sandy to clayey alternations within the whole unsaturated zone; this was interpreted as the result of frequent migrations of the River channel. Spatial correlation between bore logs showed strong similarities with heterogeneities depicted on ground by means of remote sensing data (binarized Landsat 7 image). This data were therefore used to train multiple-point statistics representative of heterogeneities, and a 3D geological model was generated through the snesim algorithm.For each representative sedimentary unit, soil moisture under controlled hydraulic surface conditions was monitored by vertical neutron probe soundings. Using 1D numerical simulations, different data sets of hydrodynamic properties that reproduced moisture measurements were determined by a Monte-Carlo approach. Probability density functions including measurement uncertainties were deduced for the Mualem - van Genuchten parameters which describe both retention and hydraulic conductivity curves.A 1D-distributed procedure was applied for modeling vertical flows in the unsaturated zone within several geological model realizations with different probable sets of hydrodynamics parameters. The simulated diffuse recharge was shown to be particularly sensitive to two main parameters: air-entry pressure linked to superficial deposits, where soil-plant-atmosphere interactions do occur, and vertical hydraulic conductivity contrasts within the alluvium
Loumpet, Germain. "Eléments de synthèse pour un cadre paléoclimatologique et paléoécologique quaternaire au Cameroun : première approche d'une industrie lithique ancienne dans les dépôts alluviaux de Biti en Haute-Sangha (Est-Cameroun-Ouest R.C.A.)." Paris 1, 1987. http://www.theses.fr/1987PA010641.
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