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Registros recuperados: 36
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A Cretaceous hot spot in the Ecuadorian Oriente Basin : geochemical, geochronological, and tectonic indicators IRD
Barragan, R.; Baby, Patrice.
Un paléo-point chaud intra-continental a été identifié dans le Bassin "Oriente" d'Equateur. Des corps magmatiques ont été rencontrés au sein des sédiments crétacés des formations Napo et Hollin. Les datations radiométriques montrent que leur mise en place a eu lieu entre l'Albien inférieur et le Campanien. Géochimiquement, ils sont caractérisés par une variation de composition réduite, des ratios d'éléments LIL/HFS et des éléments en trace comparables à ceux observés dans les contextes océaniques intra-plaques et dans plusieurs provinces à coulées basaltiques. Les données de sismique réflexion montrent que la plupart des sites éruptifs sont contrôlés par des structures extensives préexistantes, inversées par une tectonique transpressive durant le...
Tipo: Text Palavras-chave: POINT CHAUD; TECTONIQUE; GEOCHIMIE; ROCHE IGNEE; ROCHE INTRUSIVE; ROCHE EXTRUSIVE; FACIES; ELEMENT CHIMIQUE MAJEUR; ELEMENT EN TRACE; GEOCHRONOLOGIE; DATATION; SISMIQUE A REFLEXION; CRETACE.
Ano: 1999 URL: http://www.documentation.ird.fr/hor/fdi:010022654
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Compressive tectonism along the Eastern margin of Malaita Island (Solomon Islands) IRD
Auzende, Jean-Marie; Kroenke, L.; Collot, Jean-Yves; Lafoy, Y.; Pelletier, Bernard.
New bathymetric and geophysical data were collected in the region east of the island of Malaita during the SOPACMAPS II cruise of the French research vessel L'Atalante. This region, part of the Malaita Anticlinorium was interpreted as a piece of oceanic crust from the Ontong Java Plateau obducted over the old Solomon Islands arc during collision between the Pacific and Australian plates. It has been generally accepted that convergent motion between the Australia and Pacific plates since the Late Miocene was absorbed exclusively along the San Cristobal trench, southwest of the Solomon Islands Arc. Bathymetry, imagery, and geophysical data (magnetism, gravity, seismic) acquired during the SOPACMAPS II survey allow us to classify the successive parallel...
Tipo: Text Palavras-chave: GEOLOGIE STRUCTURALE; BATHYMETRIE; MAGNETISME; GRAVIMETRIE; SISMIQUE A REFLEXION; GEODYNAMIQUE; COMPRESSION TECTONIQUE.
Ano: 1996 URL: http://www.documentation.ird.fr/hor/fdi:010009464
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Côte d'Ivoire-Ghana margin : seismic imaging of passive rifted crust adjacent to a transform continental margin IRD
Peirce, C.; Whitmarsh, R.B.; Scrutton, R.A.; Pontoise, Bernard; Sage, Françoise; Mascle, J..
During May 1990 and January-February 1991, an extensive geophysical data set was collected over the Côte d'Ivoire-Ghana continental margin, located along the equatorial coast of West Africa. The Ghana margin is a transform continental margin running subparallel to the Romanche Fracture Zone and its associated marginal ridge - the Côte d'Ivoire-Ghana Ridge. From this data set, an explosive refraction line running approximately 150 km, ENE-WSW between 3°55'N, 3°21'W and 4°23'N, 2°4'W, has been modelled together with wide-angle airgun profiles, and seismic reflection and gravity data. This study is centred on the Côte d'Ioivre Basin located just to the north of the Côte d'Ivoire-Ghana Ridge, where bathymetric data suggest that a component of normal rifting...
Tipo: Text Palavras-chave: MARGE CONTINENTALE; SISMIQUE A REFLEXION; GEOLOGIE STRUCTURALE; MODELISATION; GRAVIMETRIE.
Ano: 1996 URL: http://www.documentation.ird.fr/hor/fdi:010009474
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Déformation compressive d'un bassin intra-arc dans un contexte de collision ride/arc : le bassin d'Aoba, arc des Nouvelles-Hébrides IRD
Daniel, Jacques; Gérard, Martine; Mauffret, A.; Boulanger, D.; Cantin, B.; Collot, Jean-Yves; Durand, Jacques; Fisher, M.; Greene, H.G.; Michaux, P.; Pelletier, Bernard; Pezzimenti, A.; Renard, V.; Schaming, M.; Tissot, J.D..
Tipo: Text Palavras-chave: GEOLOGIE STRUCTURALE; COMPRESSION TECTONIQUE; SUBDUCTION; BATHYMETRIE; SISMIQUE A REFLEXION; DIRECTION STRUCTURALE.
Ano: 1989 URL: http://www.documentation.ird.fr/hor/fdi:26123
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Données nouvelles sur la ride de Norfolk (Sud-Ouest Pacifique) IRD
Dupont, Jacques; Launay, Jean; Ravenne, C.; Broin, C.E. de.
Tipo: Text Palavras-chave: MILIEU MARIN; GEOPHYSIQUE; MORPHOLOGIE; GEOLOGIE STRUCTURALE; SISMIQUE A REFLEXION; STRATIGRAPHIE; ACCIDENT TECTONIQUE.
Ano: 1975 URL: http://www.documentation.ird.fr/hor/fdi:07806
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El pre-Aptense en la Cuenca Oriente ecuatoriana IRD
Diaz, M.; Baby, Patrice; Rivadeneira, M.; Christophoul, F..
Tipo: Text Palavras-chave: BASSIN SEDIMENTAIRE; GEOLOGIE STRUCTURALE; STRATIGRAPHIE; TECTONIQUE; GEODYNAMIQUE; PALEOZOIQUE; MESOZOIQUE; SISMIQUE A REFLEXION; PROFIL SISMIQUE; PALEOGEOGRAPHIE; SEDIMENTATION CONTINENTALE; ROCHE MERE; PETROLE; RESERVOIR; MODELISATION.
Ano: 2004 URL: http://www.documentation.ird.fr/hor/fdi:010036209
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Etude de la zone "IPOD" Nouvelles Hébrides : état des travaux au 1/4/1977 IRD
Joly, ...; Legat, ...; Evrat, ...; Cheney, ...; Chunge, Léonard; Daniel, Jacques; Dauteloup, Jean; Dupont, Jacques; Erlandson, ...; Gowe, Ferdinand; Jamet, Rémi; Jouannic, Christian; Lapouille, André; Larue, Bernard; Latham, G.V.; Launay, Jean; Missègue, François; Monzier, Michel; Penvern, Yves; Pontoise, Bernard.
Tipo: Text Palavras-chave: ARC INSULAIRE; SUBDUCTION; BATHYMETRIE; MORPHOLOGIE; MAGNETISME; GRAVIMETRIE; SISMIQUE A REFRACTION; SISMIQUE A REFLEXION; STRATIGRAPHIE; ANALYSE PETROGRAPHIQUE; ETUDE REGIONALE.
Ano: 1977 URL: http://www.documentation.ird.fr/hor/fdi:010019157
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Etude sismique du lagon sud-ouest de la Nouvelle-Calédonie (Sud-Ouest Pacifique) : paléomorphologies successives et comportement au Quaternaire supérieur, du littoral de l'île IRD
Dugas, François; Ville, P.; Coudray, J..
Tipo: Text Palavras-chave: LAGON; SISMIQUE A REFLEXION; INTERPRETATION; STRATIGRAPHIE; GEOMORPHOLOGIE; GEOCHRONOLOGIE.
Ano: 1980 URL: http://www.documentation.ird.fr/hor/fdi:03923
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Evolution morphologique et structurale de la marge occidentale de la ride de Nouvelle-Calédonie (SW Pacifique) IRD
Rigolot, Patrick.
Tipo: Text Palavras-chave: TECTONIQUE DE PLAQUES; GEOLOGIE STRUCTURALE; BATHYMETRIE; SISMIQUE A REFLEXION; MARGE CONTINENTALE; COMPRESSION TECTONIQUE; EXTENSION TECTONIQUE.
Ano: 1989 URL: http://www.documentation.ird.fr/hor/fdi:34818
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From oblique subduction to intra-continental transpression : structures of the southern Kermadec-Hikurangi margin from multibeam bathymetry, side-scan sonar and seismic reflection IRD
Collot, Jean-Yves; Delteil, J.; Lewis, K.B.; Davy, B.; Lamarche, Geoffroy; Audru, J.C.; Barnes, P.; Charnier, F.; Chaumillon, E.; Lallemand, S.; Mercier de Lepinay, B.; Orpin, A.; Pelletier, Bernard; Sosson, M.; Toussaint, Bertrand; Uruski, C..
The southern Kermadec-Hikurangi convergent margin, east of New Zealand, accommodates the oblique subduction of the oceanic Hikurangi Plateau at rates of 4-5 cm/yr. Swath bathymetry and sidescan data, together with seismic reflection and geopotential data obtained during the GEODYNZ-SUD cruise, showed major changes in tectonic style along the margin. The changes reflect the size and abundance of seamounts on the subducting plateau, the presence and thickness of trench-fill turbidites, and the change to increasing obliquity and intracontinental transpression towards the south. In this paper, we provide evidence that faulting with a significant strike-slip component is widespread along the entire 1000 km margin. Subduction of the northeastern scarp or the...
Tipo: Text Palavras-chave: TECTONIQUE DE PLAQUES; SUBDUCTION; GEOLOGIE STRUCTURALE; BATHYMETRIE; SONAR; SISMIQUE A REFLEXION; GEODYNAMIQUE; FAILLE.
Ano: 1996 URL: http://www.documentation.ird.fr/hor/fdi:010009470
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From strike-slip faulting to oblique subduction : a survey of the alpine fault-Puysegur trench transition, New Zealand, results of cruise Geodynz-sud Leg 2 IRD
Delteil, J.; Collot, Jean-Yves; Herzer, R.; Calmant, Stéphane; Christoffel, D.; Coffin, M.; Ferrière, J.; Lamarche, Geoffroy; Lebrun, J.F.; Mauffret,A.; Pontoise, Bernard; Popoff, M.; Ruellan, E.; Sosson, M.; Sutherland, R..
The Geodynz-sud cruise on board the R/V l'Atalante collected bathymetric, side-scan sonar and seismic reflection data along the obliquely convergent boundary between the Australian and Pacific plates southwest of the South Island, New Zealand. The survey area extended from 44°05'S to 49°40'S, covering the transition zone between the offshore extension of the Alpine Fault and the Puysegur Trench and Puysegur Ridge. Based on variations in the nature and structure of the crust on either side of the margin, the plate boundary zone can be divided into three domains with distinctive structural and sedimentary characteristics. The northern domain involves subduction of probably thinned continental crust of the southern Challenger Plateau beneath the continental...
Tipo: Text Palavras-chave: TECTONIQUE DE PLAQUES; SUBDUCTION; GEOLOGIE STRUCTURALE; BATHYMETRIE; SISMIQUE A REFLEXION; GEODYNAMIQUE.
Ano: 1996 URL: http://www.documentation.ird.fr/hor/fdi:010009468
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GEODYNZ-SUD shipboard report : Leg Hikurangi, 1-18 november 1993, Leg Puysegur, 21 november-07 december 1993 IRD
Collot, Jean-Yves (ed.); Delteil, J. (ed.); Lewis, K. (collab.); Audru, J.C. (collab.); Barnes, P. (collab.); Chanier, F. (collab.); Chaumillon, E. (collab.); Davy, B. (collab.); Lallemand, S. (collab.); Lamarche, Geoffroy (collab.); Mercier de Lépinay, M. (collab.); Orpin, A. (collab.); Pelletier, Bernard (collab.); Sosson, M. (collab.); Toussaint, Bertrand (collab.); Uruski, C. (collab.); Wood, R. (collab.); Herzer, R. (collab.); Calmant, Stéphane (collab.); Christoffel, D. (collab.); Coffin, M. (collab.); Ferrière, J. (collab.); Lebrun, J.F. (collab.); Mauffret, A. (collab.); Pontoise, Bernard (collab.); Popoff, M. (collab.); Ruellan, E. (collab.); Sutherland, R. (collab.).
Tipo: Text Palavras-chave: GEOPHYSIQUE; CAMPAGNE OCEANOGRAPHIQUE; GEOLOGIE STRUCTURALE; GEODYNAMIQUE; SISMIQUE A REFLEXION; MAGNETISME; GRAVIMETRIE; TECTONIQUE DE PLAQUES.
Ano: 1994 URL: http://www.documentation.ird.fr/hor/fdi:40976
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Geometry and structure of the Vitiaz trench lineament (SW Pacific) IRD
Pelletier, Bernard; Auzende, Jean-Marie.
Swath bathymetric, sonar imagery and seismic reflection data dollected during thee SOPACMAPS cruise Leg 3 over segments of the Vitiaz Trench Lineament and adjacent areas provide new insights on the geometry and the structural evolution of this seismically inactive lineament. The Vitiaz Trench Lineament, although largely unknown, is one of the most important tectonic feature in the SW Pacific because it separates the Cretaceous crust of the Pacific Plate to the north from the Cenozoic lithosphere of the North Fiji and Lau Basins to the south. The lineament is considered to be the convergent plate boundary between the Pacific and Australian Plates during middle to late Tertiary time when the Vitiaz Arc was a continuous east-facing arc from the Tonga to the...
Tipo: Text Palavras-chave: TECTONIQUE DE PLAQUES; SUBDUCTION; CROUTE OCEANIQUE; GEOLOGIE STRUCTURALE; TECTONIQUE; VOLCANISME; BATHYMETRIE; SISMIQUE A REFLEXION; GEODYNAMIQUE.
Ano: 1996 URL: http://www.documentation.ird.fr/hor/fdi:010009466
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Geophysical investigations along the Peruvian convergent margin IRD
Pecher, I.A.; Kukowski, N.; Von Huene, R..
Tipo: Text Palavras-chave: TECTONIQUE DE PLAQUES; MARGE CONTINENTALE ACTIVE; SISMIQUE A REFLEXION; GEOPHYSIQUE; FLUX THERMIQUE.
Ano: 1993 URL: http://www.documentation.ird.fr/hor/fdi:38388
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Initial results of combined geoscientific investigations off-and onshore the active north-Chilean continental margin IRD
Reichert, C. (rapporteur).
En été 1995, quatre institutions de recherche allemandes (BGR, GFZ, FUB et GEOMAR) ont réalisé, en collaboration avec des instituts chiliens et espagnols, le projet CINCA (étude de la croûte au large et à terre dans la zone des Andes Centrales). Les résultats obtenus par plusieurs méthodes géophysiques sont présentés, en particulier les données de la sismique réflexion et de la réfraction marine. (Résumé d'auteur)
Tipo: Text Palavras-chave: MARGE CONTINENTALE ACTIVE; SISMIQUE A REFLEXION; GEOLOGIE STRUCTURALE; SUBDUCTION.
Ano: 1996 URL: http://www.documentation.ird.fr/hor/fdi:010008535
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Morphologie et structure de l'arc insulaire des Nouvelles-Hébrides dans sa terminaison sud IRD
Launay, Jean.
Tipo: Text Palavras-chave: TECTONIQUE DE PLAQUES; ARC INSULAIRE; BATHYMETRIE; ANOMALIE MAGNETIQUE; SISMIQUE A REFLEXION; MORPHOLOGIE; STRUCTURE; METHODE D'ANALYSE.
Ano: 1982 URL: http://www.documentation.ird.fr/hor/fdi:02409
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Morphologie et structures superficielles de la partie Sud de la zone de subduction des Nouvelles-Hébrides IRD
Daniel, Jacques.
Tipo: Text Palavras-chave: TECTONIQUE DE PLAQUES; SUBDUCTION; GEOLOGIE STRUCTURALE; BASSIN OCEANIQUE; FOSSE OCEANIQUE; BATHYMETRIE; ARC INSULAIRE; ANOMALIE MAGNETIQUE; SISMIQUE A REFLEXION.
Ano: 1982 URL: http://www.documentation.ird.fr/hor/fdi:02402
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Morphology, limits, origin and age of salt layer along South Atlantic african margin IRD
Pautot, G.; Renard, V.; Daniel, Jacques; Dupont, Jacques.
Tipo: Text Palavras-chave: MILIEU MARIN; EVAPORITE; SEDIMENTOLOGIE; DISTRIBUTION SPATIALE; VARIATION SPATIALE; PROFONDEUR; SISMIQUE A REFLEXION; GRAVIMETRIE; ANOMALIE MAGNETIQUE.
Ano: 1973 URL: http://www.documentation.ird.fr/hor/fdi:06987
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New Caledonia basin-Fairway ridge : structural and sedimentary study IRD
Ravenne, C.; Broin, C.E. de; Dupont, Jacques; Lapouille, André; Launay, Jean.
Tipo: Text Palavras-chave: GEOPHYSIQUE; MILIEU MARIN; TECTONIQUE DE PLAQUES; GEOLOGIE STRUCTURALE; PROFIL SISMIQUE; SISMIQUE A REFLEXION; GENESE; ANOMALIE MAGNETIQUE; SISMOLOGIE; INTERPRETATION.
Ano: 1977 URL: http://www.documentation.ird.fr/hor/fdi:08780
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North-South structural evolution of the Peruvian subandean zone IRD
Gil R., W.; Baby, Patrice; Marocco, René; Ballard, J.F..
La zone subandine péruvienne se caractérise par un changement géométrique Nord-Sud très complexe, dû au passage progressif d'une tectonique de socle à une tectonique de couverture. Cette variation latérale de la déformation est contrôlée par l'héritage tectonique triasique et jurassique, qui a laissé des systèmes de rift obliques à la chaîne et une érosion plus ou moins forte des séries sédimentaires paléozoïques. Cette évolution Nord-Sud a pu être mise en évidence grâce à la construction de coupes équilibrées. (Résumé d'auteur)
Tipo: Text Palavras-chave: TECTONIQUE; GEOLOGIE STRUCTURALE; PALEOGEOGRAPHIE; SISMIQUE A REFLEXION; SEDIMENT; EROSION; RIFT; ORIENTATION; MODELISATION.
Ano: 1999 URL: http://www.documentation.ird.fr/hor/fdi:010022670
Registros recuperados: 36
Primeira ... 12 ... Última
 

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