Dissertations / Theses on the topic 'Massif du Sud'
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Najoui, Khalid. "Conditions et âges de mise en place des granitoi͏̈des de la zone externe sud du Massif central français : étude pétro-structurale et géochronologique 40Ar-39Ar des roches, de leurs auréoles de contact et de quelques roches magmatiques. Implications géotectoniques." Montpellier 2, 1996. http://www.theses.fr/1996MON20271.
Full textPereira, Vitor Paulo. "L'altération dans le massif alcalino-carbonatitique de catalao I - Brésil ; évolution minéralogique." Poitiers, 1995. http://www.theses.fr/1995POIT2356.
Full textGazelle, François. "L'hydrologie du sud du Massif Central dans son environnement géographique." Bordeaux 3, 1996. http://www.theses.fr/1996BOR30075.
Full textThe author considers a group of regions located in the south of the central highlands or massif central (france). Thus, this study is not presented as an ordinary monography, but rather as a synthesis of the relations between rainfall and flows, depending on the territories and seasons. Alternately generated by abundant rainfall from the ocean and the mediterranean, the flows reflect the pedological caracteristics of the hydrologic lands that elementary slope-basins are. Low waters and rises in water levels play a peculiar part and are carefully looked into in all their aspects
Heuzé, Patricia. "Impact à moyen terme des grands herbivores sauvages sur le renouvellement de la hetraie-sapinière des Hautes Vosges." Metz, 2002. http://docnum.univ-lorraine.fr/public/UPV-M/Theses/2002/Heuze.Patricia.SMZ0216.pdf.
Full textJuventin, Gérard Marc. "Le contact Jura-Bresse : étude stratigraphique et tectonique de la région d'Ambérieu (Jura méridional)." Lyon 1, 1985. http://www.theses.fr/1985LYO11683.
Full textMongel, Véronique. "La dynamique des paysages dans le sud du massif vosgien." Nancy 2, 2000. http://www.theses.fr/2000NAN21028.
Full textBiron, Philippe. "Le cycle de l'eau en forêt de moyenne montagne : flux de sêve et bilans hydriques stationnels : bassin versant du Strengbach à Aubure, Hautes Vosges." Université Louis Pasteur (Strasbourg) (1971-2008), 1994. http://www.theses.fr/1994STR10004.
Full textThe characterization of the water fluxes of 3 forest stands has been studied for 3 years (1989-1991) in the small strengbach catchment (80 ha) located on the eastern side of the vosges mountains. The 3 experimental sites are a 100 year and a 30 year old stand of spruce and a 120 year old stand of beech the sandy silt nature of soils characterized by an important macroporosity and heterogeneity induces a low water retention and a high hydraulic conductivity at saturation. The water retention curves - in sorption and desorption conditions- have been determined on 100 undisturbed soil samples, have been adjusted by van genuchten's model. This fitting has permitted to calculate the maximum extractable water reserve, to estimate the hydraulic conductivity curves and to appreciate the importance of the draining processes. The seasonal interception has been estimated for each stand. The analysis during a rainy period gave the useful elements for an interception modelisation. Aet has been determined during summertime by 2 methods: sum of sap flow and interception and water balance. Results obtained by water balance slightly underestimates sap flow method (7%). A water stress experiment has been conducted on the 30 year old spruce stand; and early regulation process has been observed for this kind of planting
Coque-Delhuille, Brigitte. "Le massif du sud-ouest anglais et sa bordure sédimentaire : étude géomorphologique." Paris 1, 1986. http://www.theses.fr/1986PA010667.
Full textThis research deals with three objects. 1- the analysis of the morphostructural features of the basement of Devon- Cornwall. The selective erosion has an important role at various scales: the dominating position of all the intrusive granitic blocks, in contrast with the epimetamorphic basement, and selective erosion inside the granitic massifs themselves (large central basin in Dartmoor and alveoles). After the determination of identification criteria for the hydrothermal weathered granites (field indicators and laboratory data), the study of the relations between the landforms and the hydrothermal weathered granites is attempted. The tectonic behavior of this basement situated alongside a passive oceanic margin is looked at too. 2-the reconstruction of the main stages of the pre-Pliocene geomorphologic evolution of the massif. Two major erosion surfaces can be clearly individualized in the English south-west: an upper surface truncating the granitic massifs and the Exmoor, derivated from the post-Hercynian surface, and the fundamental surface of Devon-Cornwall, truncating the epimetamorphic basement. The latter represents a good example of a polygenic peneplain, initiated during infra-cretaceous and resulting from the successive alterations made over very close planes until the Neogene. A tilting of the two surfaces from north to south occurred after the Oligocene. 3- the study of the Plio-Quaternary inheritance. With the Pliocene, a new morphologic evolution style starts, characterized by the formation of many wave cut platforms shaped around the peninsula and the clearing leading to the hollow topography. Three main appearances are analyzed: the Pliocene wave cut platform (100- 130m high); the limits of the Wolstonian peripheral ice flood, reaching mostly the sea shores and the estuaries (Scilly, Barnstaple bay, Camel estuary); the originality of the English south-west periglacial province during Wolstonian and Devensian times
Dubuc, Sylvie. "Les facteurs géographiques du dynamisme rural : une exploration en Aveyron et en Lozère." Paris 1, 2001. http://www.theses.fr/2001PA010640.
Full textDevêvre, Olivier. "Étude expérimentale du rôle des champignons rhizosphériques dans l'acidification du sol et le jaunissement de l'épicéa commun (Picea abies (L. ) Karst. ) dans les Vosges." Nancy 1, 1995. http://www.theses.fr/1995NAN10347.
Full textOuchaou, Brahim. "Etude archéozoologique de trois sites holocènes du sud du Massif central." Bordeaux 1, 1987. http://www.theses.fr/1987BOR10561.
Full textOuchaou, Brahim. "Etude archéozoologique de trois sites holocènes du sud du Massif Central." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb376085925.
Full textSanchez, Guillaume. "Chronologies et évolution de la déformation de la croute moyenne à la surface dans un prisme collisionel en décrochement : impacts sur l'aléa sismo-gravitaire : exemple des Alpes Sud-occidentales." Nice, 2010. http://www.theses.fr/2010NICE4093.
Full textThis PhD thesis presents a multidisciplinary approach, structural, petrologic, geochronologic (Ar-Ar, fission tracks, (U-Th)/He and 10Be dating) allowing to constrain the tectonic processes (burial, exhumation, active fault…) from the mid-crustal depth to the surface in the South-Western Alps. Ar-Ar and thermobarometry in shear zones show that the Argentera-Mercantour massif and its attached Permian cover underwent a similar tectono-metamorphic history with a burial peak of 15-18 km at around 34 Ma due to underthrusting below the internal metamorphic unit. The exhumation path (0. 8mm/an) of the massif took place in a transpressive, followed by a transtensive, regimes between 26 Ma and 5 Ma and between 5 and 0 Ma, respectively. Transpression is ascribed to Ivrea mantle body indentation while transtension is related to rotational movement of the Adriatic plate. The sedimentary cover is shortened and transported southward during the Miocene period (23-7Ma). This displacement is directly linked to the exhumation of the Argentera-Mercantour crystalline massif. The resulting slope of the basement-cover interface due to this uplift led to decoupling and downsliding of the overlying sedimentary cover. Further, the metamorphic gap between the crystalline massif and the sedimentary cover and their structural relationship lead to propose a model of basement substitution. Since 8 Ma, cover-basement decoupling ceased as featured by similar AFT ages in both cover and basement rocks. The recent/brittle tectonic regime is characterized by a main network of N140°E strike slip faults, and a minor N-S extensional component. Tectonic displacement along both these faults led to the opening and development of the Embrunais-Ubaye pull-apart system. The initiation age of the pull-apart is dated at 4-5 Ma by AHe ages below the Camp des Fourches fault. This fault system still active (seismicity and landslide activity) accommodating 40-60% of counterclockwise rotation of the Adriatic plate. It resulted in offsets of the Holocene glacial morphologies, dated by 10Be on quartz at 12-13 ka, while fault surfaces are dated at 11-8 ka, and gravity features at 10 to 2 ka
Lauginie, Antoine. "Nouvelle dynamique rurale et représentation des formes d'organisation de l'espace en zone rurale fragile. : Proposition d'une approche par le réseau des voies de communication locale." Paris 7, 1993. http://www.theses.fr/1993PA070023.
Full textA new rural dynamic is trend asserting in some low populated areas. Demographic and socio-economic evolutions take place in a context of deep transformation of rural space functions. This new rural dynamic involves some specific spatial organization forms. A renewal of traditional land use analysis methods is in this context necessary. The modelling of the local communication network (roads and paths) is put forward. In deed, circulation is a fundamental element in spatial organization processes in the new rural dynamic. An original method, based on an analysis of the density of relations between roads, is developing in order to propose a way to represent land use and its evolution through a model of local communication network. This model is a tool for a synthesis and dynamic approach of land use in a context of a great diversity of uses
Courtinat, Bernard. "Les organoclastes des formations lithologiques du Malm dans le Jura méridional : systématique, biostratigraphie et éléments d'interprétation paléoécologique." Lyon 1, 1987. http://www.theses.fr/1987LYO10038.
Full textRicard, Lanata Xavier. "Les voleurs d'ombre : chamanisme dans le massif de l'Ausangate (Andes sud-peruviennes)." Paris, EHESS, 2004. http://www.theses.fr/2004EHES0194.
Full textThis thesis considers the problem of the analysis of beliefs, and the so-called irrationality of magical beliefs, taking as a case study the religion of indigenous quechua speaking shephers of the Ausangate cordillera (Southern peruvian Andes). It first devotes itself to defining the centralnotions which structure the shepherd's system of representations. Then, the thesis turns to the rites, which it thoroughly describes. Rites and representations are shown as parts of a system, based on a certain ontology, upon whose coherence the thesis sheds light. Eventually, the study tackles the issue of the status of beliefs, and offers a methodological guide for teh anthropological interpretation of discourses, basedupon the "charity" principle once established by Quine, which contributes to reducing the risks of interpretative misunderstandings. All along the thesis, the shepherds are allowed to speak for themselves, and therefore become true counterparts in the anthropolgical work
Coque-Delhuille, Brigitte. "Le Massif du Sud-Ouest anglais et sa bordure sédimentaire étude géomorphologique." Lille 3 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37596820b.
Full textLerouge, Gilles. "Tectonogenèse comparée de deux segments de la chaine hercynienne : le Massif Central français septentrional et le Sud du Massif Armoricain." Paris 11, 1987. http://www.theses.fr/1987PA112489.
Full textLerouge, Gilles. "Tectonogenèse comparée de deux segments de la chaîne hercynienne, le Massif central français septentrional et le sud du Massif armoricain." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb37607357v.
Full textDérioz, Pierre. "Friches et terres marginales en basse et moyenne montagne : revers sud-oriental du Massif central." Avignon, 1993. http://www.theses.fr/1993AVIG1002.
Full textThis research, dealing with areas abandoned by agriculture, shows the stakes and ambiguities of the different literature developped on the topic of fallow lands and on the dangers they are supposed to entail for rural landscapes. Beyond problems of definition of these marginal lands and uncertainties about statistical results - from 2. 5 to 5. 4 millions of hectares, according to different inventories -, fallow lands are studied in their full diversity : diversity of causes, mechanisms and situations of land abandonment, diversity of the real estate statutes, diversity of thelandscapes and the ecollogical evolutions. In two areas of small and medium-sized mountains, on mediterranean margins, where fallow lands and agricultural decline have been operating for a long time (boutieres ardechoises, occidental high-languedoc), Two complementary ways of research try to point out such a diversity : the first one analyses the place of marginal lands in the farming concerns' areas and strategies, and their functions, espacially pastoral ones. Prospects of succession of the farmers, and also phenomenons of agricultural recovering of abandoned lands (quality vineyards) showing the ever possible reversibility of the processes, are particularly emphasized. The second method, closely linked to the previous one, deals with vegetation and landscape dynamics of the marginal lands, especially ex-vineyards and chestnut orchards, where anthropic influences remain strong. This work finally insists on the non-agricultural uses of the marginal lands, attempting to distinguish those abandoned for a long time from those which are going to quickly recover other functions such as reforestation, recreation, urban development. . . These new functions are sometimes sources of conflicts when they bring many social actors (animal breeders, hunters, foresters. . . ) in the same area
Giusti, Christian. "Le sud du Massif Central (France) : implications morphogénétiques de l'activation d'une marge passive : approches épistémologique et naturaliste." Perpignan, 2002. http://www.theses.fr/2002PERP0629.
Full textFrom the Aquitaine Basin to the Languedocian Piedmont, the Southern part of the Massif Central of France is a classically studied province in the field of the Earth sciences, an area about which numerous data and interpretation have been amassed since the endof the Eighteenth century. After an introductory chapter (methodology), the first part of the work consists in a critical review and analysis of a selection of texts and various illustrations, indicative of a gradual change in both the perception and understanding of landforms among geologists and geographers all along the 19th and the 20th centuries. The second part is a detailed description of landforms using the explanatory method. The main part of the field studies consisted in observations and cartography to discriminate regular from peculiar features of the landscape. Three chapters respectively deal,firstly with the Lacaune and Haut-Dourdou area, Espinouse, Caroux, Escandorgue (i. E. The highlands), secondly with a transect going from the highlands to the west (Sidobre, Castrais, i. E. The aquitanian lowlands) and thirdly with a transect going from the highlands to the south (Avant-Monts, i. E. The languedocian lowlands). Even if the Earth's surface can be considered as a continuum, it must be emphasized that, concerning the topography, heterogeneousness is not the exception but the rule. Because large scale landforms are issued from a complex evolution that integrates in a whole and unique succession numbers of facts and events which, with time, are all connected by strong links of causality, the last chapter discusses a possible scenario for the individualization of the southern border of the Massif Central
Pulido, Avila Maria Guadalupe. "Conséquences de l’anthropisation sur la dynamique postglaciaire de la végétation dans le sud du Massif Central, France." Aix-Marseille 3, 2006. http://www.theses.fr/2006AIX30014.
Full textThe postglacial vegetation history in the south of Massif Central (France) was reconstructed using a multidisciplinary palaecological approach with (pollen and geochemical analyses). The main objectives were to evaluate the impact of past human activities on the long-term vegetation dynamics and to retrace the land uses for two sectors: the Cévennes National Parc and the Regional Parc of Haut Languedoc. The study of several peatlands delivered a vegetation history since the Atlantic period. In the two studied sectors, human activities were identified since the Neolithic period and were mainly attributed to pastoral activities, whereas agriculture was very limited. Then, agro-pastoral activities and deforestation became more important, reaching a peak at the end of the Roman period at the Mont Lozère and at the beginning of the Middle Ages for two sectors. The deforestations during the Iron Age at Mont Lozère have principally affected beech while in the Regional Parc of Haut Languedoc beech seems not to be affected during this period. At Mont Lozère, metallurgical lead activities were attested by several archaeological proofs. Multidisciplinary approach (pollen and geochemical analyses) of the Narses Mortes peatland shows two periods of metallurgical activities: the known Medieval one and a second older period: the Gabales metallurgy (Iron Age), which has not been already identified by archaeology and this is the first evidence for this metallurgy activities. Deforestation linked to metallurgical activities principally affected the beech
Simon-Coinçon, Régine. "Le Socle du sud-ouest du Massif Central français altérations, modèles, évolution morphologique /." Lille 3 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376099121.
Full textGerbaud, Eric. "Dynamique des communautés végétales en écosystèmes perturbés : le cas des espèces adventices des cultures extensives du Parc naturel régional du Luberon (Sud-Est de la France)." Aix-Marseille 1, 2002. http://www.theses.fr/2002AIX11010.
Full textRezqi, Hlima. "Les foraminifères benthiques du néogène supérieur du sillon sud-rifain et du Rif nord-oriental (Maroc) : systématique, paléoécologie, paléobiogéographie." Lyon 1, 1988. http://www.theses.fr/1988LYO10083.
Full textIngouacka, Roger. "Recherches géomorphologiques et cartographie des aléas naturels dans la combe de la motte chalancon (Drôme)(Diois et Baronnies, préalpes du sud)." Lille 1, 1995. http://www.theses.fr/1995LIL10133.
Full textBouladou, Gérard. "Les maquis du Massif central méridional, 1943-1944 : Ardèche, Aude, Aveyron, Gard, Hérault, Lozère, Tarn /." Nîmes : C. Lacour, 2006. http://catalogue.bnf.fr/ark:/12148/cb41017243b.
Full textMahéo, Gweltaz. "Formation et exhumation de roches de haute température en contexte de collision continentale : exemple des dômes migmatitiques néogène du sud Karakorum (NE Pakistan)." Lyon 1, 2002. http://www.theses.fr/2002LYO10198.
Full textWissam, Khalil. "Prospection dans le Liban méridional : étude du développement de la zone montagneuse de l'époque hellénistique à la fin de l'époque médiévale, 323 av. J.C.-1516 ap. J.C." Paris 1, 2009. http://www.theses.fr/2009PA010574.
Full textGarnier, Emmanuel. "Les forêts des Vosges méridionales à l'époque moderne : Des espaces forestiers éclatés et convoités." Besançon, 2000. http://www.theses.fr/2000BESA1013.
Full textTartese, Romain. "Caractérisation et datation des circulations de fluides dans le Cisaillement Sud Armoricain (Massif Armoricain, France)." Phd thesis, Université Rennes 1, 2011. http://tel.archives-ouvertes.fr/tel-00674890.
Full textDjerossem, Nenadji Félix. "Croissance et remobilisation crustales au Pan-Africain dans le sud du massif du Ouaddaï (Tchad)." Thesis, Toulouse 3, 2018. http://www.theses.fr/2018TOU30319/document.
Full textThis thesis is devoted to crustal growth and Pan-African reworking in the south of the Ouaddaï massif in Chad, located at the southern margin of the Sahara Metacraton and north of the Congo Craton. Geologic mapping has allowed to identify metasedimentary units alternating with amphibolites and intruded by plutonic rocks with intermediate to felsic composition. Amphibolites correspond to pre-tectonic tholeiitic basalts derived from the partial melting of the depleted mantle (ƐNd540= 4). The felsic rocks, represented by S-type leucogranites yielding U-Pb zircon ages of 635 ± 3 Ma and 612 ± 8 Ma, are derived from the partial melting of metasediments. High-K calc-alkaline I-type granitoids yielding U-Pb zircon ages at 538 ± 5 Ma, and including a shoshonitic pyroxene-monzonite yielding U-Pb zircon ages at 538 ± 5 Ma are characterized by radiogenic isotopic signatures (ƐNd540= -4 et -15) and are partial melting of an enriched mantle with a potential impact of mixing of mantle and crustal-derived magmas. Metasedimentary rocks display a NE-SW trending S0/S1-2 foliation associated with centimeter to hectometer scales F1 and F2 isoclinal folds delineating hook type interferences pattern and bearing a L1-2 lineation weakly dipping towards the NW. The S0/S1-2 foliation is also affected by upright open F3 folds marked by the development of a faint axial planar S3 schistosity variably dipping to the NNW or NW. Zircon detrital grains with Hf signatures pointing to an Archaean to Paleoproterozoic inheritance indicates that metasedimentary rocks are derived from erosion of the surrounding cratons and were deposited in the early Neoproterozoic. These rocks were subsequently affected by deformation and metamorphism dated at 627 ± 7 Ma (by Th-U-Pb on monazite) and at 602 ±3 Ma (by U-Pb on zircon), typical of green schist facies and amphibolite facies. [...]
Buchy, Marlène. "Le teck et l'aréquier : l'État colonial, la forêt et les hommes dans les Ghats occidentaux (Inde du Sud), 1800-1947." Paris 7, 1993. http://www.theses.fr/1993PA070120.
Full textThe colonial forest policy developed by the British in the western ghats. Took into account, economic and conservationist considerations, the main ideas of which have not been contested since independance. The forest management and policy decisions have had diverse effects on the forest, as well as, on the life of local communities. This colonial legacy today, still plays a role in the evolution of the natural environment
Ollivier, Vincent. "Continuités, instabilités et ruptures morphogéniques en Provence depuis la dernière glaciation : travertinisation, détritisme et incisions sur le piémont sud du Grand Lubéron (Vaucluse, France) : relations avec les changements climatiques et l'anthropisation." Aix-Marseille 1, 2006. http://www.theses.fr/2006AIX10069.
Full textEchtler, Helmut. "Les nappes du versant sud dans l'évolution tectonique varisque de la Montagne Noire (sud du Massif central) : de l'épaississement crustal à l'extension tardi-orogénique." Montpellier 2, 1989. http://www.theses.fr/1989MON20119.
Full textLacombat, Frédéric. "Étude des rhinocéros du Pléistocène de l'Europe méditerranéenne et du Massif Central : Paléontologie, phylogénie et biostratigraphie." Paris, Muséum national d'histoire naturelle, 2003. http://www.theses.fr/2003MNHN0016.
Full textThis work consists of a palaeontological study of Pleistocene rhinoceros, especially of the genus Stephanorhinus, in Mediterranean Europe and Massif Central. It is based on three important sites, which are the Vallonnet cave ((Roquebrune-Cap-Martin, Alpes-Maritimes, France), Isernia La Pineta (Molise, Italy) and the Caune de l'Arago (Tautavel, Pyrénées-Orientales, France), and on seventeen sites have also been taken into account. These sites cover the whole Pleistocene. Stephanorhinus etruscus, Stephanorhinus hundsheimensis, Stephanorhinus hemitoechus and Stephanorhinus kirchbergensis present disctinct morphological and biometrical characteristics, which allow to define for each species its evolutionary trends. Cladistic analysis, based on skull and teeth morphological characters, shows the existence of two monophyletic groups. The biochronological interest of rhinoceros' evolutionary trends is a powerful biostratigraphical tool when the whole faunistic spectrum is considered
Menier, David. "Morphologie et remplissage des vallées fossiles sud-armoricaines : apports de la stratigraphie sismique." Lorient, 2003. http://www.theses.fr/2003LORIS025.
Full textLévêque, Marie-Hélène. "Contribution de la géochronologie U-Pb à la caractérisation du magmatisme cadomien de la partie Sud-Est du Massif Central et du gisement d'uranium associé de Bertholène." Montpellier 2, 1990. https://tel.archives-ouvertes.fr/tel-01670335.
Full textGagnon, Sophie. "Cartographie géomorphologique détaillée et reconstitution de la paléogéographie wisconsinnienne du massif du mont Mégantic, sud du Québec." Mémoire, Université de Sherbrooke, 2006. http://savoirs.usherbrooke.ca/handle/11143/2448.
Full textGagnon, Sophie. "Cartographie géomorphologique détaillée et reconstitution de la paléogéographie wisconsinnienne du massif du mont Mégantic, sud du Québec." [S.l. : s.n.], 2006.
Find full textLe, Bec Nolwenn. "Reconstitution des salinités et des températures des eaux de surface dans l'océan Pacifique tropical sud-ouest au cours du dernier siècle : étude multi-traceurs d'un corail scléractiniaire massif (Porites sp.) des îles Fidji." Paris 11, 2001. http://www.theses.fr/2001PA112102.
Full textDelvigne, Vincent. "Géoressources et expressions technoculturelles dans le sud du Massif central au Paléolithique supérieur : des déterminismes et des choix." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0005/document.
Full textThe petroarchaeology of flint tries to define the origin of flints found in archaeological sites. In view of the recentmethodological advances (definition of the facies always more precise, dynamic vision of the route of the flint inher environment - “evolutionary chain” concept -, precise mapping of the siliceous mineral domains) it isnowadays possible to distinguish not only the formation place of the flint (primary outcrop) but also its retrievalplace (primary or secondary outrcrop).The exhaustive study of archaeological flint collections from the South of the Massif Central of France at varioustimes of the Upper Palaeolithic (recent and final Gravettian: Le Blot and Le Rond-de-Saint-Arcons; Badegoulian:Le Rond-du-Barry and La Roche-à-Tavernat; and Upper Magdalenian: Sainte-Anne II) have permitted thehighlighting of an unexpected diversity of material representative of a huge litho-espace (geographical spaceincluding all the regarded materials). In this respect, we developed a new figuration model of the origin of the rawmaterial discovered in the archaeological site, either in a sito-centred form (like a star), but like a network ofplaces, more in agreement with the ethnographic and geographic data. The presence of different types of flint inthe lithic industries correlated to their introducing pattern on site, allow to distinguish the choices made by theancient men versus the natural constraints they undergone, authorizing consequently the semantic inscription ofthe litho-espace in an attempt of reconstruction of the palaeo-social-space
Bellot, Jean-Philippe. "La structure de la croûte varisque du Sud-Limousin (Massif-Central français) et ses relations avec les minéralisations aurifères tardi-orogéniques : apport des données géologiques, gitologiques, géophysiques et de la modélisation 3D." Montpellier 2, 2001. http://www.theses.fr/2001MON20214.
Full textPion, Gilbert. "Magdalénien, Epipaléolithique et Mésolithique ancien au Tardiglaciaire dans les deux Savoie et le Jura méridionnal." Besançon, 2004. http://www.theses.fr/2004BESA1011.
Full textThis theses deals with the attainments of magdalenian, epipaleolithics and mesolithics settlements during the Tardiglacial period in both Savoie and southern Jura. This essay presents, first, a statement of the attainments published at the end of ancient excavations then it develops the pluridiscinary results of the author's personal excavations achieved in four prehistorics places in both Savoie. The author analysis the chrono-industrial data to each culture in their natural environnment, that is to say synchronised with their paleoenvironnment vegetal and animal. A chrono-cultural schema of all the places of the study is proposed to be used as a bases for further discussions with researchers concerned with those cultures
Menier, David. "Morphologie et remplissage des vallées fossiles sud-armoricaines : apport de la stratigraphie sismique /." Rennes : Géosciences-Rennes, 2004. http://catalogue.bnf.fr/ark:/12148/cb39955706d.
Full textJabbori, Jamila. "Etude pétrographique et structurale des migmatites de la bordure sud-est du dôme anatectique du Velay (Ardèche, Massif Central Français)." Vandoeuvre-les-Nancy, INPL, 1995. http://www.theses.fr/1995INPL069N.
Full textSjarmidi, Achmad. "Etude de l'utilisation automnale des ressources alimentaires par le sanglier (Sus scrofa scrofa) dans le sud du Massif Central." Toulouse 3, 1992. http://www.theses.fr/1992TOU30143.
Full textDupuy, Julien. "Les dynamiques de l'étagement dans le Massif du Balé : hommes et systèmes forestiers dans le sud-est de l'Ethiopie." Bordeaux 3, 2010. http://www.theses.fr/2010BOR30060.
Full textIn a country like Ethiopia where the highlands have known an early and intensive development of farming activities, the Bale Mountains seem isolated. This vast mountain system remained partially inhabited until the end of the 19een century. Progressively the Oromo’s pastoralist communities have been forced to settle permanently in the higher altitudes. Forests lands are constantly assaulted by generations of landless peasants which are developing barley cultivation on the northern slopes up to 3400 meters of altitude. The southern slopes which are more humid are occupied by the ensete ventricosum or false banana. The dissertation aims at presenting the steps of the progressive colonization of the altitudinal belt together with the description of the cultural and social adaptations to the constraint of the life in higher altitudes. The approach has consisted in studying several communities settled on various agro-ecological zones throughout a decade. The forests appear to be a fundamental indicator of Bale landscapes evolution. The intensification deforestation finds its roots in the agrarian revolution, successive waves of resettlements and more recently large scale investments. Traditional management systems of natural resources are gradually abandoned. There is an evolution of farming activities, with a diminution of cattle rearing and an intensification of crops production. It is nowadays the spatial constraints and competition which are organizing Bale landscapes. The question of the scale of the impact of such environmental change is becoming crucial with the climate change debate. One of the objectives of this study was to categorize the drivers of environmental destruction of isolated mountain ecosystems and analyze the various socio-environmental impacts. The dissertation has been developed in the perspective to pilot tools and methodologies which can contribute to better estimate the environmental impact of deforestation and consolidate management systems
Fererol, Marie-Eve. "Les petites villes des espaces périphériques interstitiels : comparaison entre le sud Massif Central (France) et la Castille / Haute-Estrémadure." Thesis, Clermont-Ferrand 2, 2010. http://www.theses.fr/2010CLF20014.
Full textThis thesis is founded on the hypothesis that interstitial spaces, i.e. peripheral andless citified zones, are more vibrant than they seem at first glance. Our research shows that the way current statistics are constructed tends to underestimate the urban reality of these regions. However, small towns play a key role in maintaining and even renewing territories. Reconstructed according to coherent borders, by taking into account suburban communities, small towns consistently represent pockets of resistance in these special environments : 78%are expanding demographically and 88% benefitted from a thriving labour market from 1999 to 2006. Moreover, it seems that a Christallerian network is still shaping the southern part ofthe Massif Central, even if basic changes have occurred. And almost identical phenomenonwas observed in another interstitial space, Castile/Estremadura. A comparative tool enabledus to reveal the invariant traits that describe small towns, but also to emphasise several differences, notably in terms of land management. This led us to examine French publicpolicy more closely. Certain towns have declined, for a multitude of reasons, and no longer fulfil the function of organising and controlling space. This situation challenges current public policies, notably their egalitarian rationale. Would it not be better to reinforce regions by adopting aproactive land management policy focused on the towns with the most promising future ?
Piryaei, Alireza. "Influence de l’obduction sur les dépôts Crétacé supérieur de la province de Fars et de l’offshore du sud du Golfe Persique (Zagros-Iran)." Aix-Marseille 1, 2008. http://www.theses.fr/2008AIX11017.
Full textThe northeastern margin of the Arabian plate started subducting beneath the Iranian plate in the Early Cretaceous. During the Late Cretaceous this process influenced the sedimentary successions of the NE continental margin in the Zagros (Fars area). A series of events recorded in the area shows this evolution from a passive to a tectonically active margin. This process is well documented by significant variations in sedimentary facies and sedimentation patterns, changes in accommodation space and shifting depocentres. The dataset used in this study consists of fourteen outcrop sections measured bed by bed. They are located in the NW (around Shiraz) and SE Fars area (Bandar Abbas and offshore). This dataset was combined with numerous, re-interpreted in this study, surfaces and subsurface sections from the NIOC archive. The dating methods applied in this study are based on the routine biozonation of foraminifera, but also on new age dating based on nannoplankton, radiolaria and ammonites. Strontium isotope stratigraphy provided additional information for a few intervals. The datasets are organised in the nine regional transects parallel and perpendicular to the Zagros trend. Eight sedimentary sequences are recognised which are organised in three tectono-sedimentary phases: Phase I (Late Albian to Turonian), Phase II (Coniacian to Late Campanian) and Phase III (Late Campanian to Maastrichtian). Phase I (Sequence 1 to 4) is characterised by shallow-water carbonate platforms bordering intrashelf basins. The platform facies consist of a rudist and benthic foraminifera-bearing facies, while the intrashelf basins contain the ‘oligosteginid’ and other pelagic facies. Eustatic sea-level variations can be the main factor for the creation of the accommodation space in parts of the area, whereas to the southeast the role of the regional and salt tectonic are more dominant. Phase II (Sequence 5 to 7) is marked by major changes in the depositional environments and sedimentary facies, as a result of obduction and foreland basin formation. This phase started with the deposition of sediments in an isolated platform carbonate setting (Santonian) that grade laterally and vertically to pelagic marls of the Santonian and Campanian. In the NW Fars the pelagic marls host large volumes of gravity flows and radiolarite/ophiolitic fartravelled sediments as well as thrust slices of older carbonates. In the SE Fars, Phase II contains far less gravity flows, which are only present at a few localities. Proposed as controlling factor on the sedimentary system are regional tectonic processes associated with local salt tectonic processes. Phase III, (Sequence 8) is dominated by pelagic facies that, in the NW Fars, interfingers with autochthonous shallow-water Omphalocyclus and Loftusia-bearing facies (Tarbur Formation). In the SE Fars, at the top of the sequence, Phase III occurs associated with slumped conglomeratic/brecciated units with clasts of the underlying carbonate platform