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Registros recuperados: 23
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An example of GIS potentiality for coastal zone management: preselection of submerged oyster culture areas near Marennes-Oleron (France) ArchiMer
Durand, H.; Guillaumont, Brigitte; Loarer, Ronan; Loubersac, Lionel; Heral, Maurice; Prou, Jean.
The Charente Maritime coast, in central western France, is the most important area for oyster and mussel production in Europe. High density, in this restricted intertidal area, induces low growing rate and socio-economic difficulties. One of the possible solutions is to shift some oysters from intertidal area to submerged areas. Bathymetry, sedimentology, hydrodynamism, fisheries and administrative rules are some conditions which are considered to establish the better selection of potential zone. The successive steps of setting up the prototype of GIS are presented: digitized traditional data from charts, extracted data from grid models (hydrodynmaic model), merging of thematic covers, proposal of favorable areas. The results are discussed especially on...
Tipo: Text Palavras-chave: GIS; Modelisation; Bathymetry; Sedimentology; Hydrodynamism; Marennes Oleron.
Ano: 1994 URL: http://archimer.ifremer.fr/doc/00017/12784/9725.pdf
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Caracterización geomorfológica y sedimentológica de la Bahía de Jaramijó, en la provincia de Manabí OceanDocs
Soledispa, B..
En este trabajo se presentan los resultados del reconocimiento geológico de la zona de playa, zona de dunas, de los acantilados, así como fotografías de las características geomorfológicas más sobresalientes de la Bahía de Jaramijó, observadas en el año 2008. Los acantilados son de mediana a baja altura, conformados por rocas sedimentarias, principalmente de la Formación Tablazo. Hay algunos sectores donde la erosión es más fuerte, producto del socavamiento que hace el oleaje en la base de los acantilados. También se presentan los resultados de las investigaciones realizadas sobre sedimentos superficiales de fondo, desde el punto de vista de la textura y de los parámetros estadísticos. Un total de 45 muestras de sedimentos del fondo marino de la zona...
Tipo: Journal Contribution Palavras-chave: Geomorphology; Sedimentology; Sedimentary rocks; Parameters; Cliffs.
Ano: 2012 URL: http://hdl.handle.net/1834/4720
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Contribution to the stratigraphy of the onshore Paraíba Basin, Brazil Anais da ABC (AABC)
Rossetti,Dilce F.; Góes,Ana M.; Bezerra,Francisco H.R.; Valeriano,Márcio M.; Brito-Neves,Benjamim B.; Ochoa,Felipe L..
Several publications have contributed to improve the stratigraphy of the Paraíba Basin in northeastern Brazil. However, the characterization and distribution of sedimentary units in onshore areas of this basin are still incomplete, despite their significance for reconstructing the tectono-sedimentary evolution of the South American passive margin. This work provides new information to differentiate among lithologically similar strata, otherwise entirely unrelated in time. This approach included morphological, sedimentological and stratigraphic descriptions based on surface and sub-surface data integrated with remote sensing, optically stimulated luminescence dating, U+Th/He dating of weathered goethite, and heavy mineral analysis. Based on this study, it...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Morphology; Sedimentology; Stratigraphy; Chronology; Tectonics; Paraíba Basin.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000200007
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Du modele à la nature : l'exemple de la côte Togolaise OceanDocs
Rossi, G.; Baritse, L.; Blivi, A.B..
La côte togolaise, basse et sableuse, soumise è une violente érosion par suite d'une série d'erreurs d'aménagements, a fait l'objet en 1987-1988 d'importants travaux destin's à protéger sur 15 km la ville d'Aného et l'usine de phosphates de Kpémé, principale industrie du pays. La préparation de ces travaux, de protection, rendus indispensables par la gravité des enjeux économiques et sociaux, a nécessité des études hydrologiques et sédimentologiques très détaillées, ainsi que la construction et l'exploitation par un bureau d'étude spécialisé de deux importants modèles physique (32 x 20 m) destinés à optimiser le dispositif de protection et à déterminer l'évolution du trait de côte sur une période de 25 ans...
Tipo: Other Palavras-chave: Coastal zone; Sedimentology; Coastal erosion; Coastal erosion; Http://aims.fao.org/aos/agrovoc/c_9949.
Ano: 1991 URL: http://hdl.handle.net/1834/1228
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Estudio sedimentológico y mineralógico de la plataforma continental ecuatoriana en el tramo comprendido entre Salinas y Ayampe OceanDocs
Soledispa, B.; Villacres, J..
Esta investigación tiene como principal objetivo conocer como están distribuidos los sedimentos en el área, su origen, procedencia y su comportamiento en relación a los agentes de transporte y sedimentación que allí actúan.
Tipo: Journal Contribution Palavras-chave: Sedimentology; Mineralogy; Distribution; Sediment analysis; Mineralogy; Distribution; Http://aims.fao.org/aos/agrovoc/c_4856; Http://aims.fao.org/aos/agrovoc/c_35773.
Ano: 1989 URL: http://hdl.handle.net/1834/2158
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Etude biomorphosédimentaire du domaine marin côtier de Penly. Mission SONPEN - Mai 1992 ArchiMer
Dreves, Luc; Clabaut, Philippe; Chevalier, Claire.
The biological and sedimentology study of the sea floor between Dieppe and Le Treport (Eastern Channel, France) is a part of the environnemental monitoring of the Penly nuclear power plant. Every year, Hydrology, microbiology, phytoplankton, zooplankton, and fishing are studied.
Tipo: Text Palavras-chave: Benthos; Biologie; Centrale nucleaire; Morphologie; Sedimentologie; Smveillance; Benthos; Biology; Morphology; Power plant; Sedimentology; Surveillance..
Ano: 1995 URL: https://archimer.ifremer.fr/doc/00465/57667/59869.pdf
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Etude biomorphosédimentaire du domaine marin côtier entre Dieppe et Criel-sur-Mer (Seine-Maritime) – Morcaux - Avril et Mai 2014 - CNPE Penly ArchiMer
Le Gac-abernot, Chantal; Clabaut, Philippe; Dreves, Luc; Gaffet, Jean-dominique.
Dans le cadre de la surveillance du milieu marin du site électronucléaire de PENLY (Seine-Maritime), le domaine benthique côtier de Dieppe à Criel-sur-mer a fait l’objet d’une prospection biomorphosédimentaire en avril et mai 2014, comme celles réalisées en 1988, 1992, 1996, 2000, 2008 et 2004.
Tipo: Text Palavras-chave: Centrale nucléaire; Penly; Surveillance; Benthos; Faune; Sédiment; Monitoring; Penly; Power plant; Benthos; Fauna; Sedimentology.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00403/51448/52021.pdf
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Etude sédimentaire de la baie de Quiberon : la zone ostréicole en eau profonde et ses abords ArchiMer
Lemoine, Gérard.
Tipo: Text Palavras-chave: Hydrobiology; Hydrodynamic; Sedimentology; Oyster culture zone.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/rapport-2210.pdf
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Impact des émissaires et canalisation sur l'environnement de la baie de Tanger ( Maroc ) : Approche géochimique OceanDocs
Achab, M.; El hatimi, I.; El moumni, B..
Dans le but d’évaluer le degré de contamination chimique et/ou organique des sédiments superficiels le long des émissaires continentaux, des échantillons de sédiments de surface ont été prélevés et analysés le long des oueds Souani et Mghogha et au niveau de la canalisation majeure de la ville de Tanger débouchant sur la baie située sur la marge méditerranéenne marocaine. La dynamique sédimentaire dans les oueds montre exceptionnellement une évolution amont–aval granocroissante en relation avec l’activité anthropique (remblaiement des bassins versants par les matériaux de construction tels que les briques, ciments, verres, etc.). La matière organique est présente à des teneurs relativement élevées en corrélation positive avec la sédimentation fine. L’azote...
Tipo: Journal Contribution Palavras-chave: Sedimentology; Mineralogy; Pollution; Geochemical surveys; Bay dynamics.
Ano: 2002 URL: http://hdl.handle.net/1834/199
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Instabilites sous-marine etudiees par submersibles ArchiMer
Savoye, Bruno.
Sediment instability appears to be important as a part of global sedimentary budget. Among the various types of sedimentary instabilities, submarine slides are probably the most spectacular and the hardest to study and predict, although their consequences on human and industrial marine activities can be dramatic. IFREMER is conducting a research project on this topic. An area off Nice (France) has been particularly studied because of its recent activity. Mapping and instability area detection have been carried out. With the possibility of direct interactive observation and highly accurate submarine in -situ operation, the submersible is an extremely efficient tool for sediment studies, but diving purposes have to be precisely defined to provide useful...
Tipo: Text Palavras-chave: Sediments; Instability; Sedimentology; Sedimentary structures; Ocean floor; Marine technology; Geology; Submersibles; Unmanned vehicles.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/1990/acte-1150.pdf
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Late Quaternary drainage dynamics in northern Brazil based on the study of a large paleochannel from southwestern Marajó Island Anais da ABC (AABC)
Rossetti,Dilce F.; Góes,Ana M..
Marajó Island shows an abundance of paleochannels easily mapped in its eastern portion, where vegetation consists mostly of savannas. SRTM data make possible to recognize paleochannels also in western Marajó, even considering the dense forest cover. A well preserved paleodrainage network from the adjacency of the town of Breves (southwestern Marajó Island) was investigated in this work combining remote sensing and sedimentological studies. The palimpsest drainage system consists of a large meander connected to narrower tributaries. Sedimentological studies revealed mostly sharp-based, fining upward sands for the channelized features, and interbedded muds and sands for floodplain areas. The sedimentary structures and facies successions are in perfect...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Remote sensing; Sedimentology; Paleochannel; Marajó Island; Quaternary.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652008000300017
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Les peuplements benthiques du plateau insulaire de la Martinique et des zones bathyales adjacentes. Cas particulier de la malacofaune ArchiMer
Paulmier, Gerard; Durand, Francoise.
Several oceanographic surveys in Martinique waters with, as main objectives, either geological mapping and evaluating marine aggregate resources of research into deep water carcinologie resources, nafe produced interesting informtion on benthic pppulations situated from the infralittoral to the bathyal shelf, for the wole of faunistic groups and more specifically for the malacofauna. The distribution of the various faunistic group has been analysed in function to the bathymetric, edaphic and possibly, thermic factors. The infralittoral zones, up to the 20 metres isobath, and circalittoral, between 60  and 80 metres, are known to have the richest populations. Corals, sponges, polychaete annelida and molluscs are the best represented, numerically as well as...
Tipo: Text Palavras-chave: Ecologie; Sédimentologie; Bathymétrie; Peuplements; Benthos; Invertebrés; Communautés; Bivalves; Gastéropodes; Ecology; Sedimentology; Bathymetry; Settelment; Benthos; Invertebrates; Molluscs; Communities; Bivalvia; Gastropoda.
Ano: 1997 URL: https://archimer.ifremer.fr/doc/00480/59191/61880.pdf
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Mesures geotechniques par grand fond ArchiMer
Cochonat, Pierre; Dansy, G; Leduc, Bernard; Meunier, Jacques; Harmegnies, Francois; Floury, L.
The mechanical behaviour of sediments is usually studied from laboratory core analyses which do not take into account the real state of in-situ stresses. Therefore, the aimed purpose is presently to determine the in-situ geotechnical properties which mainly depend on the relationship between fine-grained particles and intergranular fluids. At IFREMER, these achievements have been pursued in the framework of 2 scientific program: "Nodules and Sedimentary Processes and Instability on Slopes, for which surficial measurements were conducted on selected seafloor targets usually pre-defined from high resolution geophysical data." 2 kinds of instrumentation were developed in correlation to 2 different strategies of handling at sea. There is the instrumentation of...
Tipo: Text Palavras-chave: Submarine cables; Deep sea mining; Offshore equipment; Geotechnology; Submersibles; Sedimentary structures; Sedimentology; Ferromanganese nodules; Instability; Marine technology; Sediments; Ocean floor; Deep water.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/1990/acte-1157.pdf
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Mineralogical and geochemical influences on sediment color of Amazon wetlands analyzed by visible spectrophotometry Acta Amazonica
Guimarães,José Tasso Felix; Cohen,Marcelo Cancela Lisboa; França,Marlon Carlos; Silva,Any Kelly Terra da; Rodrigues,Suyanne Flavia Santos.
Based on sedimentological and geochemical data, this work relates spectrophotometric measurements with sediment composition and its application in palaeoecological studies of Amazon wetlands. The CIELAB values are directly related to mineralogical and chemical composition, mostly involving quartz, iron oxyhydroxides and sulfides (e.g. pyrite), and total organic carbon. Total organic carbon contents between 0.4-1%, 1-2%, 3-5% and 15-40% were related to L* (lightness) data of 27, 26-15, 7-10 and 7 or less, respectively. The CIELAB values of a deposit in Marabá, Pará, were proportional to variations in quartz and total organic carbon contents, but changes in zones of similar color, mainly in the +a* (red) and +b* (yellow) values of deposits in Calçoene, Amapá...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sedimentology; Amazon region; Munsell color systems; Mineralogy; Chemical composition.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672013000300009
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Modélisation du transport sédimentaire et des interactions morphodynamiques par les courants de turbidité dans les canyons sous-marins. Application à la Méditerranée Occidentale ArchiMer
Payo Payo, Marta.
Turbidity currents in submarine canyons are the main contribution for sediment transfer across the continental margins. Geological studies of submarine canyons and associated turbiditic systems for more than 30 years led to an extraordinary breakthrough in the understanding of how turbidite systems evolve. However, these studies remain limited to a posteriori interpretations, based on the distribution of deposits and morphological evidences. The overarching aim of this thesis is to apply a 2DH process-based model to simulate large-scale turbidity currents on two different submarine canyons in the western Mediterranean coast.The work in La Fonera canyon, in the Catalan margin, focuses on the modelling of sediment transport and accumulation resulting from...
Tipo: Text Palavras-chave: Canyons sous-marins; Chalutage; Courants de turbidité; Forces de Coriolis; Hydrodynamique; Modélisation; Sédimentologie; Submarine canyons; Trawling; Turbidity current; Modelling; Hydrodynamics; Sedimentology; Coriolis forces.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00498/60919/64280.pdf
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Oceanologic study of an open coastal area in the Ionian sea with emphasis on its benthic fauna and some zoogeographical remarks ArchiMer
Zenetos, A; Christianidis, S; Pancucci, Ma; Simboura, N; Tziavos, C.
The macrobenthic faunal composition, sedimentology and physical characteristics were investigated in an open coastal area of the Greek Ionian Sea. Hydrographic parameters were recorded at 26 stations using a CTD profiler during nine cruises performed between 1990 and 1991, while benthic samples were collected in November 1990 and April 1991 at 22 stations with the aid of a Ponar grab. Macrobenthic variety indicated an area of high scientific interest : 351 species in all, 18 of which are new to the Creek fauna. Furthermore, 10 species are previously unrecorded in the Eastern Mediterranean. Of the biological indices estimated, species richness was comparable to that of other open Greek areas, while population density seemed to be a function of a) depth and...
Tipo: Text Palavras-chave: Macrobenthos; Zoogeography; Physical oceanography; Sedimentology; Ionian Sea.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/00093/20408/18075.pdf
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Pycaso - Avril 2000. Étude biomorphosédimentaire du domaine marin côtier entre Dieppe et Criel-sur-Mer (Seine-Maritime ; France) ArchiMer
Dreves, Luc; Clabaut, Philippe; Chevalier, Claire.
Environnemental monitoring of the PENLY nuclear power plant takes into account, every fourth year, fauna and sedimentology studies of the sea floor between Dieppe and Criel-sur-Mer (Eastern Channel, France).
Tipo: Text Palavras-chave: Centrale nucléaire; Penly; Surveillance; Benthos; Faune; Morphologie; Sédimentologie; Monitoring; Nuclear power plant; Penly; Benthos; Fauna; Morphology; Sedimentology.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/00005/11660/8320.pdf
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Seasonal sediment dynamics of the Marennes Oleron Bay : characterisation of superficial sediment textural properties and rheophysics ArchiMer
Kervella, Stephane; Robert, Serge; Pantet, Anne; Jarny, Sebastien.
Tipo: Text Palavras-chave: Sedimentology; Marennes Oleron Bay.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/00175/28604/27025.pdf
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Sidementological and environmental impacts of development projects along the coast of hurghada, red sea, egypt OceanDocs
Mansour, A.M.; Mohamed, A.W.; El Dien, G.K.; Sayed, S.M..
The studies areas lay in Hurghada region include different aspects of coastal development. It represents different environmental problems and threats to the Red Sea ecosystem and geosystem. They include two tourist projects, a central marina for yachts and fishermen and a site for oil exploration and production. All sits have implemented Environmental Impact Assessment studies (EIA). Unfortunately, dredging and landfilling caused severe coast destruction and shoreline change in these areas. All sites have accurately surveyed and environmental problems cited, oceanographic parameters were measured, and 109 samples were collected from the beach and the tidal flat of four sits forming the study area. Grain size, carbonates and organic matter contents, major...
Tipo: Journal Contribution Palavras-chave: Field Study; Environmental conditions; Sedimentology; Coastal erosion.
Ano: 2007 URL: http://hdl.handle.net/1834/1904
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Stabilisation et réhabilitation des dunes bordières de la côte nord de Mahdia (Tunisie orientale) OceanDocs
Amrouni, Oula.
Tipo: Theses and Dissertations Palavras-chave: Sedimentology.
Ano: 2002 URL: http://hdl.handle.net/1834/5398
Registros recuperados: 23
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