Dissertations / Theses on the topic 'Stratigraphique'
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PINHEIRO-MOREIRA, JOBEL LOURENCO. "Stratigraphie sismique et modelisation stratigraphique des depots de l'eocene du bassin de santos (marge bresilienne)." Rennes 1, 2000. http://www.theses.fr/2000REN10019.
Full textLallier, Florent. "Corrélation stratigraphique stochastique de puits." Thesis, Université de Lorraine, 2012. http://www.theses.fr/2012LORR0414/document.
Full textStratigraphic correlation consists in linking boundaries of correlative units between wells or outcrops over a given study area, and is therefore one of the first steps of the characterization of the subsurface geometry, supporting geostatistical modeling of static reservoir properties. However, this early step is subject to uncertainties, since stratigraphic well correlation is constrained only by sparse observations (wells and outcrops), low resolution information coming from geophysics, regional knowledge and geological concepts. The Dynamic Time Warping (DTW) algorithm serves as a base for the development of a generic method stochastically performing stratigraphic correlation between units identified on available wells. The proposed method relies on the definition of correlation rules that are applied using the available data and some regional knowledge, according to the way stratigraphic units are defined. An application to the Cretaceous southern Provence carbonate basin has been performed using correlation rules based on paleo-angles and the theoretical architecture of the depositional environment. The computation of vertical proportions of facies on numerous models generated from the stochastic correlations of sequence stratigraphic units indicates that the uncertainties on the stratigraphic correlation impact the compartmentalization of the modeled reservoirs. The impact of stratigraphic correlation uncertainties on fluid flow behavior is assessed through the example of the Malampaya diagenetic carbonate reservoir. Diagenetic units are correlated on the basis of their wireline log signature and diagenetic types. Different models are generated from the stochastic well correlations, and the corresponding water saturation profiles are computed. They show different displacement patterns, indicating a stratigraphic control of the dynamic property, which contrasts with the synthetic seismic model constructed from the corresponding geomodel. Magnetostratigraphic correlation is another way to study sedimentary basin deposition and deformation history. Adapting the DTW algorithm to magnetostratigraphic data, we generate dating models of Himalayan deposits, for which conflicting interpretations are proposed in the literature. This allows managing the associated accumulation rates uncertainties
Agullo, Yohan. "Inversion stratigraphique multicomposante avant sommation." Paris 11, 2005. http://www.theses.fr/2005PA112338.
Full textThis thesis present the extension of monocomponent seismic prestack data stratigraphic inversion method to multicomponent data, with the objective of improving the determination of reservoir elastic parameters. In addiction to the PP pressure waves, the PS converted waves proved their interest for imaging under gas clouds ; and their potential is highly significant for the characterization of lithologies, fluids, fracturations. . . Nevertheless the simultaneous use of PP and PS data remains problematic because of their different the time scales. To jointly use the information contained in PP and PS data, we propose a method in three steps: first, monocomponent stratigraphic inversions of PP then PS data; second, estimation of the PP to PS time conversion law; third, multicomponent stratigraphic inversion. For the second point, the estimation of the PP to PS conversion law is based on minimizing the difference between the S impedances obtained from PP and PS monocomponent stratigraphic inversion. The prestack monocomponent stratigraphic inversions was adapted to the case of multicomponent data by leaving each type of data in its own time scale in order to avoid the distortion of the seismic wavelet. The results obtained on a realistic synthetic PP-PS case show on one hand that determining PP to PS conversion law (from the monocomponent inversion results) is feasible, and on the other hand that the joint inversion of PP and PS data with this conversion law improves the results compared to the monocomponent inversion ones. Although this is presented within the framework of the PP and PS multicomponent data, the developed methodology adapts directly to PP-SS data for example
Le, T. V. "Stratigraphie sismique et modélisation stratigraphique : application à l'évolution tectonique oligo-miocène du Bassin du Fleuve Rouge (Vietnam)." Phd thesis, Université Rennes 1, 1998. http://tel.archives-ouvertes.fr/tel-00728242.
Full textLê, Tuâń Việt. "Stratigraphie sismique et modelisation stratigraphique : application a l'evolution tectonique oligo-miocene du bassin du fleuve rouge (vietnam)." Rennes 1, 1998. http://www.theses.fr/1998REN10066.
Full textTaakili, Abdelaziz. "Méthode de Galerkin discontinue pour un modèle stratigraphique." Phd thesis, Université de Pau et des Pays de l'Adour, 2008. http://tel.archives-ouvertes.fr/tel-00324012.
Full textMahieux, Geoffroy. "Etude de l'enregistrement stratigraphique par sismique haute résolution." Lille 1, 2000. https://pepite-depot.univ-lille.fr/RESTREINT/Th_Num/2000/50376-2000-64.pdf.
Full textDubreuilh, Jacques. "Synthèse paléogéographique et structurale des dépôts fluviatiles tertiaires du nord du Bassin d'Aquitaine : passage aux formations palustres, lacustres et marines /." Orléans : Éd. du BRGM, 1989. http://catalogue.bnf.fr/ark:/12148/cb351530062.
Full textBrunel, François. "Etude stratigraphique et paléontologique du Lias moyen du Quercy septentrional." Toulouse 3, 1996. http://www.theses.fr/1996TOU30200.
Full textZERARI, LEDUC SOFIA. "Etude stratigraphique du permo-trias tethysien (sedimentologie, geochimie et magnetostratigraphie)." Paris 6, 1999. http://www.theses.fr/1999PA066680.
Full textBoukhir, Mohammed. "Etude stratigraphique et sédimentologique du site paléolithique de Montgaudier (Charente)." Bordeaux 1, 1992. http://www.theses.fr/1992BOR10646.
Full textCauxeiro, Cirilo. "Architecture stratigraphique du prisme néogène de la Kwanza, Angola, et relations avec les mouvements verticaux." Thesis, Montpellier 2, 2013. http://www.theses.fr/2013MON20120.
Full textThis pioneering work, focuses on the study of the stratigraphic architecture of the Cuanza Basin, from a combined multi-scale approach crossing the geomorphology, seismic interpretation and sedimentologicalfacies from Oligocene interval to Present. The objective is to identify the age, the partitioning of facies, the environments of deposition of the coastal zone in order to date and characterize the vertical movements in relation to the salt creep (gravitational tectonic) and the general uplift of the margin related to the deformation of the lithosphere. Detailed analysis of the outcrops of the coastal zone allowed in a complementary manner specify the conditions of drainage of the paleo-Cuanza putting thus in evidence the identification of a deltaic prism type bird's foot in Pliocene which prograde on a coastal aeolian system. In addition, over to the basin, up to Bom Jesus, a shoal area led to the establishment of a Gilbert delta powered by a possible proto-Cuanza, in conjunction with the mixed platform of lower Miocene. Most off the shelf, in the area of Cabo de Sao Braz to Barra do Cuanza, a detailed analysis of the stratigraphic architecture of the cliffs allowed characterize in a viewpoint facies and depositional processes in a succession of channel-levee systems in compensation, showing locally early sandy injection processes related to the instability of the channel borders. These systems Oligocene to Pliocene are tightly controlled by the growth of diapirs (Cabo Ledo) and and sometimes they are fed by fluvial deposits, dismantling folds diapirs and contributions from mixed platform. In Sangano the turbidite channel banks contain the bioclastic sands with bioturbations type Skolithos and Ophiomorpha which indicate gravitational instability of the shelf that edge the subsidence incisions with a potential for colonization of the sandy bottom by Fauns "turbiportées". Going up to the north we pass gradually to slope facies highlighted by levels of black-shale that marks the window of planktonic productivity. These facies are overlain by marl with intervals of tempestites, characteristics of the offshore transition. Finally, to the South of Miradouro da Lua, we were able to put in evidence in upper Miocene contouritesfacies that climbs the slope following a series of grooves erosion. These facies are truncated by sandy deposits bioturbed typical of shoreface. From Cabo de Sao Braz until Luanda, sometimes is possible to obsreve a temporal and paleoenvironmental succession which reinforces the model of differential uplift or tilting of the series toward to the North. From South to the North, is observed an evolution of interdipiricturbiditic deposits of Oligocene to lower Miocene in the area of Cabo do Sao Braz / Cabo Ledo to deltaic facies of the paleo-Cuanza - Pliocene fluvial braid-delta of Pleistocene in Miradouro da Lua
Granjeon, Didier. "Modélisation stratigraphique déterministe : conception et applications d'un modèle diffusif 3d multilithologique." Phd thesis, Université Rennes 1, 1996. http://tel.archives-ouvertes.fr/tel-00648827.
Full textGranjeon, Didier. "Modélisation stratigraphique déterministe : conception et applications d'un modèle diffusif 3D multilithologique /." Rennes : Géosciences, Université de Rennes I, 1997. http://catalogue.bnf.fr/ark:/12148/cb361657509.
Full textKoutsouveli, Anastasia. "Etude stratigraphique des formations pliocènes et pléistocènes en Messénie occidentale (Péloponnèse, Grèce)." Grenoble 2 : ANRT, 1987. http://catalogue.bnf.fr/ark:/12148/cb376066950.
Full textKoutsouveli, Anastasia. "Etude stratigraphique des formations pliocènes et pléistocènes en Messénie occidentale (Péloponnèse, Grèce)." Aix-Marseille 2, 1987. http://www.theses.fr/1987AIX22116.
Full textRobin, Cécile. "Mesure stratigraphique de la déformation : Application à l'évolution jurassique du Bassin de Paris." Phd thesis, Université Rennes 1, 1995. http://tel.archives-ouvertes.fr/tel-00675430.
Full textRobin, Cécile. "Mesure stratigraphique de la déformation : application à l'évolution jurassique du bassin de Paris /." Rennes : Géosciences, Université de Rennes I, 1997. http://catalogue.bnf.fr/ark:/12148/cb361636736.
Full textKnoll, Fabien. "Les Fabrosauridae Galton, 1972 (Dinosauria : Ornithischia) : répartition géographique et stratigraphique ; systématique et phylogénie." Paris, Muséum national d'histoire naturelle, 2002. http://www.theses.fr/2002MNHN0012.
Full textRobin, Cécile. "Mesure stratigraphique de la deformation : application a l'evolution jurassique du bassin de paris." Rennes 1, 1995. http://www.theses.fr/1995REN10142.
Full textMoreau, Julien. "Architecture stratigraphique et dynamique des dépots glacières ordoviciens du bassin de Murzuq (Libye)." Université Louis Pasteur (Strasbourg) (1971-2008), 2005. http://www.theses.fr/2005STR1GE13.
Full textThe Late Ordovician glaciation is considered as an outstanding event of Earth history. Preservation of Ordovician glacial deposits is exceptional into the Murzuq Basin (Libya) and the aim of this PhD thesis is to study this succession. This work is principally based on field work study in the Ghat-Tikiumit area (west rim of the basin) associated with remote sensing analysis and petroleum investigation methods (stratigraphical modelling and interpretation of 3D seismic surveys). Results consist in relationships between ice-sheet dynamic, stratigraphical architecture and depositional system reconstructions at various space and time scales. Thus, two major glacial cycles are recognized into the Libyan glacial succession. Both terminate by a complete ice-sheet retreat and associated postglacial transgression at basin scale. Each cycle comprise several glacial phases (ice-sheet advance then retreat). Ice retreat is followed by the deposition of a glacial depositional sequence. During ice-sheet advances, the study area is repeatedly covered by ice streams. The final deglaciation sequence creates landward stepwise imbricate proglacial fan-deltas and associated ice fronts. Final postglacial transgression is driven by strong remnant topography and is responsible for the localisation of the Ordovician reservoir rocks and Silurian "hot-shale". Results consist in, into the Murzuq Basin, sequence stratigraphy interpretation of the glacial succession, eustatic evolution as well as ice-sheet and sedimentary reconstruction through the different glacial cycles and phases
Peton, Nicolas. "Étude et simulation d'un modèle stratigraphique advecto-diffusif non-linéaire avec frontières mobiles." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLC058/document.
Full textAn essential prerequisite to finding hydrocarbons is to trace back the history of a basin. To this end, geologists resort to a stratigraphic model, which simulates the evolution of sedimentary basins over large time scales (million years) and space (hundreds of kilometers). The Dionisos software, developed by IFPEN since 1992 and highly praised by oil companies, makes this type of calculation possible by accounting for two main physical processes: (1) the sediment transport due to gravity; (2) the flow of water from rivers and rains. The gravity transport is described by a diffusion equation in which the sediment flow depends on the slope of the ground. Initially, this dependence is linear. To better match experimental observations, we wish to make it nonlinear by means of a p-Laplacian. This upgrade requires to design a dedicated numerical method which should not only run fast but also provide guarantees of robustness and accuracy. In addition, it must be compatible with a constraint on the erosion rate in the present model. The water flow due to rivers and rains is also a recent enhancement brought to the physical model of Dionisos. This is achieved by introducing a new partial differential equation, coupled with that of sediment transport. Again, it is capital to work out an innovative numerical strategy, in the sense that it must be both efficient and well suited to the strong coupling of these two phenomena. The objective of this thesis is to rejuvenate the numerical schemes that lie at the heart of Dionisos in order to deal more adequately with the physical processes above. In particular, we look for an implicit scheme with respect to all the unknowns that extends and improves the current scheme. The methodologies investigated in this work will serve as a basis for the next generation of stratigraphic modelling softwares
Arab, Mohamed. "Analyse des systèmes pétroliers de l'offshore algérien oriental : quantification, modélisation stratigraphique et thermique." Thesis, Brest, 2016. http://www.theses.fr/2016BRES0130/document.
Full textThe Algerian margin is a complex domain, limited to the south by the Maghrebian internal zones (AlKaPeCa) that overthrust the external Tellian zones southward. The offshore part of this system constitutes a back-arc basin, where a mio-pliocene sedimentary series were deposited over a substratum of laterally variable origin and nature. The goal of the present work consisted in analyzing and modelling the petroleum system at work and calculating hydrocarbon volumes. Before proceeding to different numerical basin, stratigraphic and thermal modelling, a conceptual geological model is required and was performed based on field geological studies and stratigraphic and structural interpretations of the seismic profiles. The extension of the continental crust beyond the foot of the margin, allows determining a chronostratigraphic model by extrapolation of the outcroping oligo-miocene formations onshore to the acoustic pre-messinian units defined in the offshore basin. Besides, a tectonic analysis in both onshore and offshore domains gave rise to three main steps of evolution: (1) syn-rift phase where the basin was opened by transtension since Late Oligocene- Aquitanian, (2) post-rift phase in which intra-arc basins were developed, AlKaPeCa and Africa docked and magmatism activity took place, (3) inversion phase where the margin became active mainly since Quaternary times. After defining the different petroleum system elements taking into account variable uncertainties, the 2D/3D petroleum system model depicts possibilities of oil and gas accumulations mainly close to the margin, between 20 to 65 km from the coastline to the north with a maximum range of 70 km in the Bejaia Gulf
Vaillant, Pascal. "L'Extrémité occidentale de la marge Nord-Gascogne, contexte stratigraphique, structural et cinématique implications géodynamiques /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb37619033q.
Full textLanteaume, Cyprien. "Couplage de la modélisation stratigraphique et diagénétique : développements numériques et applications aux systèmes carbonatés." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0344.
Full textCarbonate sedimentary systems record both global and local geological changes of the outer envelope of the Earth and contain more than 75% of conventional hydrocarbon reserves. These carbonate systems show a great complexity at every spatial and temporal scales. To increase our ability to understand and predict such intricate natural systems, it is necessary to integrate naturalistic and quantitative methodological apporaches. Numerical process-based modeling (stratigraphic-sedimentary-diagenetic) reduces the uncertainty of prediction of carbonate reservoir properties. The manuscript presents a method of iterative modeling of carbonate systems from stratigraphy to seismic by integrating diagenesis. This approach is based on the coupling of numerical tools and a working approach combining sedimentology, diagenesis, rock physics and seismic simulation. Tests on case studies associated with scientific and industrial issues validated the method.The modeling approach that was developed during the thesis allows to integrate a large number of multi-scale and multidisciplinary data. Models can easily be shared between the disciplines of geosciences. The model continuum along different scales of space (from the basin to the reservoir) and time eases the integration of various data. The obtained synthetic seismic is not a simple geometric convolution, but an integration of sedimentological and diagenetic properties, which allows for an analysis of the stratigraphic significance of the seismic reflectors. This innovative approach integrates naturalistic and quantitative methods, which improve the understanding and prediction of carbonate systems and reservoirs
Juventin, 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 textVaillant, Pascal. "L'extrémité occidentale de la marge nord Gascogne : contexte stratigraphique, structural et cinématique, implications géodynamiques." Brest, 1988. http://www.theses.fr/1988BRES2026.
Full textTongban, Hyacinthe. "Etude du soulevement au neogene de la bordure continentale norvegienne : approche stratigraphique et quantification." Paris 11, 2000. http://www.theses.fr/2000PA112197.
Full textGarcia, Tristan. "Cadres stratigraphique, magnétostratigraphique et géochronologique des hominidés fossiles du site de Dmanissi en Géorgie." Paris, Muséum national d'histoire naturelle, 2004. http://www.theses.fr/2004MNHN0017.
Full textThe site of Dmanisi, Georgia, is a key site for the comprehension of the first settlements in Eurasia. Indeed, several hominid fossils, the oldest known outside of Africa, have been discovered associated with archaic tools and a Villafranchian fauna. These hominids, whose morphological characteristics place them between Homo habilis and Homo erectus, have been named a new species: Homo georgicus. This thesis aims to establish the geochronological and paleoenvironmental framework of the site of Dmanisi. Sedimentological and stratigraphic studies revealed complex and varied deposits, highlighting volcanic levels but also the presence of intrusive tunnels, whose are filled with fluviatile sediments in the stratigraphic sequence. In certain cases, post-depositional transformations which were at times intense due to biological and meteoric actions, were observed there. Several methods of dating were used and compared: The volcanic minerals and glass present in the layer which contains the human mandible (layer VI) gave an average age of 1,81 ± 0,03 Ma according to the 40Ar/39Ar method. The paleomagnetic data show a positive polarity for layer VI and confirms its contemporaneity with the Olduvai episode. Electronic spin resonance (ESR) and U/Th dating on the teeth of large herbivores was carried out with careful to the determination of the paleodose. The results obtained make it possible to show that the application of this method to such old sites is possible and thus to confirm the importance of its potential. This thesis, centred on the geochronological study of the site of Dmanisi, attests to the early presence, at the end of Pliocene, of the genus Homo in Eurasia
DURRANI, KHADIM-HUSSAIN. "Etude stratigraphique et sedimentologique du siwaliks dans la region de zarghune, quetta, balochistan, pakistan." Orléans, 1997. http://www.theses.fr/1997ORLE2009.
Full textFaik, Farid. "Le Paléozoïque de la région de Mrirt, est du Maroc central évolution stratigraphique et structurale /." Grenoble 2 : ANRT, 1988. http://catalogue.bnf.fr/ark:/12148/cb376134890.
Full textClément, Raphaël. "L' hôtel-Dieu de Rouen : 1768-1781 : étude stratigraphique d'une institution charitable de l'Ancien Régime." Paris 7, 2013. http://www.theses.fr/2013PA070022.
Full textThe objective of this study is to analyse the history of a great hospital in a major provincial city some years before Revolution. This institution is particular due to its therapeutical orientation completed by a maternity. The thesis is separate into three distinct parts : In the first part, there is a presentation of the structure of institution followed by the studying of the reforms implemented during the period and five major conflicts. In the second part, we deal with the financial aspects (resources and expenses) and we tell the story of financial adventures of the Hôtel-Dieu. The third and final part is about sanitary and social profile of ill people and pregnant women who come to the Hôtel-Dieu. Examination of the vital records and the studies written by physicians of the time and their successors make possible to do this profile. In addition to this study, in the annexes, we made biographies of the main persons
Faik, Farid. "Le paleozoique de la region de mrirt (est du maroc central) : evolution stratigraphique et structurale." Toulouse 3, 1988. http://www.theses.fr/1988TOU30163.
Full textFaïd, Nadia. "Contribution à l'étude stratigraphique de l'éocène des Aures et des régions limitrophes (Atlas saharien, Algérie)." Orléans, 1995. http://www.theses.fr/1995ORLE2074.
Full textFornel, Du Roure de Paulin Élodie. "Reconstitution sédimentologique tridimensionnelle et simulation stratigraphique du système turbiditique éocène des grès d'Annot (Alpes méridionales)." Rennes 1, 2003. http://www.theses.fr/2003REN10081.
Full textKodas, Ergul. "Le « Culte du Crâne », dans son contexte architectural et stratigraphique, au Néolithique au Proche-Orient." Thesis, Paris 1, 2014. http://www.theses.fr/2014PA010635.
Full textIn Neolithic Middle East, Decorated or isolated et plastered skull and acephalous skeleton we found in archaeological sets, very diverse and distinct in their contexts. Interest in cranium procurement is old and still strong in the scientific community. For a prehistorian it is, beyond ail contemporary challenges of our society, the key to access a world of beliefs, which give lives to Neolithic communities, often known for their cranium worship, which relates to their ancestors. The renewal of studies and recent discoveries implies to analyse previous data, with a focal on the definitions of contexts based upon excavating notebooks. Here, especially recent studies conducted in the 21th century's first decade in Syria, Israel and Turkey have brought new data by analysing those practices by using archaeological and anthropological modems methods. The main angle of this study, which consists in the analysis of archaeological contexts and of cranium procurement technics, is a crucial element for the understanding of this phenomenon. It is the link between the archaeological context and the anthropological data, underdeveloped in the literature, that is the main approach of this study. Only a global approach will allow to develops hypothetical solutions to the understanding of the "cult of the skull" (craniums worship). We estimate that skulls procurement (isolated or plastered skulls and others) are deeply linked to system characterised as social complexity in the Neolithic. However the link between this phenomenon and social identity or social status remains to be assessed through furthers studies. Indeed, the processing human remains and procured skulls can certainly reveal social organisation and stratification of Middle-east Neolithic communities. In other words, mortuary customs and their variation are an absolute clue to construction of social identifies as sociopolitical and socioeconomical status of an individual or of a group of Neolithic societies. More than constituting only social structures' markers, skulls procurement, their process through plastering or the addition of paintings or other elements, and their masking, also represent markers of chronological and regional differences that should guide our futures studies
Padel, Maxime. "Influence cadomienne dans les séries pré-sardes des Pyrénées Orientales : approche géochimique, stratigraphique et géochronologique." Thesis, Lille 1, 2016. http://www.theses.fr/2016LIL10185/document.
Full textThe Ediacaran-Lower Ordovician stratigraphy of the Eastern Pyrenees is updated and revised. A similar stratigraphic framework is compared with neighbouring outcrops from the Montagne Noire (France) and Sardinia (Italy), which take into account: (i) the absence of Cadomian deformation close to the Ediacaran-Cambrian boundary interval, (ii) the presence, like in the northern Montagne Noire, of acidic-dominated volcanosedimentary complexes punctuating the Ediacaran-Cambrian transition, (iii) the lack of the Guzhangian (mid Cambrian) regression, also absent in SW Sardinia. The geochemical analysis of the uppermost Ediacaran volcanism in the Eastern Pyrenees suggest two distinct affinities linked to extensional conditions (metabasites of the Nyer and Olette formations) followed by the influence the Cadomian orogeny (acidic and calk-alkaline magmatism recorded at the top of the Olette Formation and in the overlying Pic de la Clape Formation). Detrital zircons from Terreneuvian siliciclastic sediments of West Gondwana (Morocco, Iberian Massif, Montagne Noire, Pyrenees and Sardinia) reflect a distinct SW-NE trend in the relative influence of major sediment sources: the Panafrican-Atlasian sources predominate throughout the southwesternmost successions, whereas the influence of the Arabian-Nubian Shield and the Sahara Metacraton sources increases northeastward. This trend tends to disappear afterwards, possibly reflecting a common geodynamic evolution throughout this margin
Zinck, Guillaume. "Reconstruction d'hypersurfaces de champs de normales sous contraintes : application à l'analyse stratigraphique des images sismiques." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14705/document.
Full textThis thesis deals with the reconstruction of hypersurfaces from a finite-dimensional normal vector field. Application scopes can be found in the analysis of fingerprints (epidermal ridges), meteorological images (eddies and cyclones), astrophysical images (galaxy arms) and in the stratigraphic analysis of seismic images (horizons). The hypersurfaces are obtained by solving a non-linear partial derivative equation relied on the local dip deduced from a normal vector field. Several constraints such as boundaries, bounds, points belonging to the hypersurface or discontinuities can be considered.The major contribution of this thesis consists in a local dip transformation which allows to reconstruct implicit hypersurfaces as well as seismic horizons by a fast and interactive method. Two schemes dedicated to the reconstruction of discontinuous one-dimensional seismic horizons are also proposed when the discontinuity location and jump are unknown
Manson, Sandra. "Le processus d'avulsion : Enregistrement stratigraphique et sédimentologique - Application aux éventails turbiditiques de l'Amazone et du Zaïre." Phd thesis, Université de Bretagne occidentale - Brest, 2009. http://tel.archives-ouvertes.fr/tel-00940151.
Full textDucrocq, Thierry. "Le Mésolithique du bassin de la Somme : insertion dans un cadre morpho-stratigraphique, environnemental et chronoculturel /." Villeneuve-d'Ascq : Centre d'études et de recherches préhistoriques, Université des sciences et technologies de Lille, 2001. http://catalogue.bnf.fr/ark:/12148/cb38866165d.
Full textEchchat, Rachid. "Étude stratigraphique, sédimentologique et micromorphologique du remplissage Pléistocène supérieur de la grotte Tournal (Bize-Minervois, Aude)." Perpignan, 2008. http://www.theses.fr/2008PERP0852.
Full textThe stratigraphy of the Tournal cave deposits has been established from stratigraphical, sedimentological and micromorphological studies, thus making possible the paleoenvironmental reconstitution of the Languedoc Region during the Upper Pleistocene and helping to situate the site within the chronological framework of the Quaternary period. The Tournal cave is located near the Bize-Minervois village in the Aude Department. The cave opens up towards the west in a Rognacien solid mass, at the foot of a 30 m high cliff, below the Verdeyre plate. The sedimentary deposits date to between 80 000 and 10 000 years old, that is to say, from the Mousterian (beginning of the last glaciation) to the end of the Magdalenian (end of the last glaciation) periods. The cave filling may be subdivided into four units: - Unit I, at the base of stratigraphy, consists of gravel and of green clays. It appears to have been deposited during cold and dry climatic conditions with wet episodes. Attributed to isotopic stage 4, it contains the oldest Mousterian level of the site. - Unit II, Mousterian at the base and Aurignacian at the top, is characterized by an increase in the clayey-muddy fraction and a reduction in the other fractions which compose the sediment. This part of the filling, seems to have been deposited during very wet climatic conditions. It is attributed to isotopic stage 3. - Unit III (breccia and gravel with coprolithes) and Unit IV (pink silt and breccia), respectively yielded Aurignacian and Magdalenian tools. This sequence is attributed to isotopic stage 2
Mansor, Sandra. "Le processus d'avulsion : enregistrement stratigraphique et sédimentologique : application aux éventails turbiditiques de l’Amazone et du Zaïre." Brest, 2009. http://www.theses.fr/2009BRES2049.
Full textOur study focuses on the avulsion process, the key process for the depocenter migration of stacked channel-levee systems in the deepsea. To present, the avulsïon process has been explained as the abandonment of a channel (parent channel) and the birth of a new one (new channel). A true indice of avulsion has been given by the detection of the HARPs, a seismic term known since the 80s for highamplitude reflection packets at the base of new channel-levee systems. The HARPs are suggested, in analogy to the studies from ODP Leg 155 of the Amazon Fan, to be sandy deposits in lows adjacent to breached parent channels. Our present work, by re-visiting the Amazon Fan with multichannel high-resolution seismic data, highlights the great complexity of the HARPs architecture and their lithological heterogeneity. The study of some specific zones within the Zaïre Fan allowed revealing both the earliest stages of an avulsion process related to levee breaches and first splays linked to unconfined flows on the levee, and the latest stage of this process, with the first levee deposition and evolution following the HARPs deposition. These results provide new insights for the understanding of the processes involved during an avulsion event (levee breach, HARPs accumulation, levee aggradation). By describing the inter-relationship of the different architectural sub-bodies of the HARPs and giving details on both the earliest and latest stages of the avulsion, our results also provide clues to refine the previous conceptual models and reach a higher resolution knowledge of this process
Thévenard, Frédéric. "La paléoflore du jurassique inférieur (Lias) du bassin des Causses (France) : étude systématique, stratigraphique et paléoécologique." Lyon 1, 1992. http://www.theses.fr/1992LYO10049.
Full textDucrocq, Thierry. "Le mésolithique du bassin de la Somme : insertion dans un cadre morpho-stratigraphique, environnemental et chronoculturel." Lille 1, 1999. https://pepite-depot.univ-lille.fr/LIBRE/Th_Num/1999/50377-1999-5-1.pdf.
Full textJolet, Patrick. "Etude stratigraphique et sédimentologique d'une plate-forme mixte carbonatée-silicoclastique : le Turonien de Provence (S.E. France)." Aix-Marseille 1, 1996. http://www.theses.fr/1996AIX11067.
Full textChabaud, Ludivine. "Modèle stratigraphique et processus sédimentaires au Quaternaire sur deux pentes carbonatées des Bahamas (leeward et windward)." Thesis, Bordeaux, 2016. http://www.theses.fr/2016BORD0106/document.
Full textThis study proposes a reconstruction of the quaternary sedimentary history of two Bahamian slopes (leeward and windward). This work is based on the stratigraphicand sedimentary analysis of 34 marine cores recovered mainly from the CARAMBAR oceanographic cruse (2010). A high-resolution stratigraphic study was conducted by coupling several tools including ecostratigraphy based on planktonic foraminifera assemblages, which allowed dating all sedimentary sequences despite early diagenesis processes. The sedimentary analysis of the marine cores proposes a new classification for carbonate sediment. It characterizes the dominant particle distributions at the time of deposition and allows for discriminating the fine sediments and for determining the depositional processes such as off-bank transport, contouritic or gravity deposits, and slightly altered sediment. Off-bank transport is the mainprocess responsible for high-accumulation of platform carbonate ooze (aragonite needles and silt) on the Bahamian slopes. It predominates during major flooding of the platform, so during the last 4 ka cal BP, the MIS 5e and at the on set of the MIS11. Intra-slope erosion, bottom currents, and early marine diagenesis processes have also been highlighted. The leeward slope is characterized by a high accumulation of wackestone sediment where as the windward slope preserved its Pliocene morphology with local quaternary sediment accumulation (wackestone to packstone)
Cecca, Fabrizio. "Le Tithonique de la bordure ardéchoise dans la région du stratotype de l'Ardescien étude stratigraphique et paléontologique." Grenoble 2 : ANRT, 1986. http://catalogue.bnf.fr/ark:/12148/cb375965435.
Full textCecca, Fabrizio. "Le Tithonique de la bordure ardéchoise dans la région du stratotype de l'Ardescien : étude stratigraphique et paléontologique." Lyon 1, 1986. http://www.theses.fr/1986LYO19019.
Full textRouget, Isabelle. "Reconstruction phylogénétique chez les ammonites : confrontation des approches cladistique et stratigraphique, le cas des Dayiceras (Ammonitina , Eodeoceratoidea)." Dijon, 2002. http://www.theses.fr/2002DIJOS051.
Full textLegrand, Philippe. "Approche stratigraphique de l'ordovicien terminal et du silurien inferieur du sahara algerien par l'etude des diplograptides (graptolites)." Bordeaux 3, 1998. http://www.theses.fr/1998BOR30207.
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