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| Registros recuperados: 769 | |
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| Person-le Ruyet, Jeannine. |
| Four species of planktonic Calanoid Copepods, Acartia clausi, Centropages typicus, C. hamatus and Temora longicornis, were cultured during one year, at 20°, with the green algae Tetraselmis suecica. The generation time and reproductive rate are investigated, the best results are obtaincd with C. hamatus and A. clausi : 50 and 60 adults per female, and per cycle (20 and 21 days). [NOT CONTROLLED OCR] |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1975 |
URL: http://archimer.ifremer.fr/doc/1975/publication-5448.pdf |
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| Gire, G. |
| La variété des produits conservés, la complexité de leur nature du point de vue chimique, l'action propre des ingrédients qui les accompagnent, rendent la question de la corrosion des boîtes de conserves extrêmement difficile. De nombreux spécialistes, particulièrement en Amérique, ont examiné de très près les différentes sortes de corrosion que présentent les boites de conserves et se sont surtout attachés à celles qui provoquent, à bref délai, la perforation des boîtes. Leur but était de pouvoir établir des spécifications quant aux fers-blancs utilisés à la fabrication des boîtes de conserves. Cet objectif particulier semble avoir par trop limité leurs observations au seul aspect du fer-blanc et, si les corrosions observées ont été méticuleusement... |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1930 |
URL: http://archimer.ifremer.fr/doc/1930/publication-5872.pdf |
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| Cavanie, Alain. |
| The spectral energy distribution of sea waves is supplied four times a day by the French Meteorological Office's DsAs model using the pressure distribution over the atlantic as input. The surface-motion spectrum furnished by the model may then be used to estimate the local current spectrum near the sea bed. The present study is based on four years (1970-1974) of DSAs data for the so-called Brittany point (47"30 N. 5"W). The data correlates reasonably well with observations made from ships in the region lying between 40 - 50 N and O - 10 W (Figure 1) . . . Plotted on Weibull paper in Figure 2 are the cumulative probability values of U as calculated from the DSAs data (U is the mean of the upper third of maximum current values at a depth of 100 m). The... |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1975 |
URL: http://archimer.ifremer.fr/doc/1975/publication-5089.pdf |
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| Foucher, Jean-paul; Le Pichon, Xavier; Sibuet, Jean-claude. |
| The role of partial melting in the uniform lithospheric stretching model of continental margin formation is explored. It is shown that the transition from continental lithosphere stretching to oceanic accretion is most probably controlled by the production of a significant amount of partial melting in the asthenosphere immediately below the lithosphere, which requires stretching factors larger than 3. It is also shown that, at stretching factors exceeding 2, the law of subsidence is significantly changed by the presence of partial melt in the underlying asthenosphere. The implications for the existence of deep continental margin basins on thinned continental crusts are examined. The Armorican deep continental margin basin is taken as an example. [NOT... |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1981 |
URL: http://archimer.ifremer.fr/doc/1981/publication-5375.pdf |
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| Gennesseaux, Maurice; Mauffret, Alain; Pautot, Guy. |
| On October 16, 1979, off the Bay of Nice, a turbidity current, generated by large submarine landslides. was channelled by submarine valleys down to the bathyal plain of the Ligurian Sea where it seriously damaged two submarine cables, at about 80 and 110 km from its starting-point. The measured mean speeds were 17 km/h, above the first cable, and 7 km/h between the two cables, but the speed may have reached 40 km/h on the upper slope. [NOT CONTROLLED OCR] |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1980 |
URL: http://archimer.ifremer.fr/doc/1980/publication-5314.pdf |
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| Mascle, Jean. |
| In a previous article published in the "cahiers Océanographiques" XXII, 1 (January 1970), pp. 25-32, I described the broad lines of subactual sedimentation in and around the canyon of Toulon. This data had been collected during a drilling cruise conducted in October 1967. Out of the 41 successful drillings, 17 had enabled the collection of rock samples representing, either the Maures basement in which the canyon of Toulon is cut, or more recent deposits, episodes of the eustatic or tectonic variations of the water level over the Quaternary and maybe the Pliocene era. |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1971 |
URL: http://archimer.ifremer.fr/doc/1971/publication-4890.pdf |
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| Le Pichon, Xavier. |
| The plate tectonic hypothesis admits that the orogenic areas, where most of the mechanical energy vanishes, are the areas where the differential horizontal motions between rigid lithospheric plates occur. The success of this hypothesis relies on the fact that the aseismic deformations inside the plates are less important than the motions occurring along the seismic areas. The rigidity of the plates enables a rigorous analysis of their kinematic. This quantitative model of the evolution of the Earth is an incredible revolution in earth science. It leads to a series of new scientific processes and research involving every different field belonging to earth science. |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1970 |
URL: http://archimer.ifremer.fr/doc/1970/publication-4887.pdf |
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| Thiriot-qievreux, Catherine. |
| The observation of the planktonic larval shells of different species of Prosobranches is carried out with scanning electron microscopy (Cambridge, Stereoscan 4). The influence of different fixing agents (non-acetified) on the conservation state of larval shells is not really clear at low magnifications. On the contrary, at high magnifications, the results are clearly better after using an alcohol fixation or without any fixing agent at all. The morphological differences of the larval shells of four species of Philbertia: P. gracilis (Montagu), P. linearis (Montagu), P. leufroyi (Michaud) and P. purpurea (Montagu) are precised. The microstructure of the shells of Firoloida desmaresti Lesueur and Atlanta fusca Souleyet larvae is observed. Scanning electron... |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1972 |
URL: http://archimer.ifremer.fr/doc/1972/publication-5049.pdf |
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| Mascle, Jean. |
| Large areas of the Atlantic ocean continental margin do not fit with the classic atlantic type continental margin model in which only simple geometrical arrangements have been distinguished. A new structural type, related to marginal offsets and corresponding fracture ridges is fundamentally different from the classic margin. Consequently, it is proposed to distinguish the rifted atlantic-type margin, the pacific-type margin and the transform faulted or strike-slip margin as three different and fundamental types of continental margins. [NOT CONTROLLED OCR] |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1976 |
URL: http://archimer.ifremer.fr/doc/1976/publication-4987.pdf |
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| Hinschberger, F.; Clary, D.. |
| The western Coast of the Cotentin Peninsula includes cliffs (25 km), sand dunes (100 km), and a series of intervening small estuaries known as havres. Prograding shorelines alternate with retreating shorelines (e.g. on fig. 2). Pressure by touring has recently become high on dunes, one half of them being already spoiled (fig. 3). Plans have been proposed for coastal conservation. |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1979 |
URL: http://archimer.ifremer.fr/doc/1979/publication-6015.pdf |
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| Cavanie, Alain. |
| MM. Lacombe, Frassetto and Ziegenbeim's observations, based on different measurement methods, demonstrated the existence of inner fronts and short period oscillations at the interface separating the Atlantic and Mediterranean waters in the eastern part of the Gibraltar straight. These observations show that inner fronts are created by the following mechanism: during the incoming tide, the westward current pushes the Mediterranean waters against the threshold of Gibraltar and, when getting to high tide, when the tide current becomes null, the interface is far from a balanced position, too high to the east, too low to the west of the threshold. The density currents caused by this imbalance creates an inner front of amplitude of more than 50 m which moves... |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1972 |
URL: http://archimer.ifremer.fr/doc/1972/publication-4896.pdf |
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| Chervinski, Jonathan; Shapiro, James. |
| Laboratory experiments were conducted with juvenile Dicentrarchus labrax L. in order to determine their ability to grow and develop in fresh water on small zooplankton and zoobenthos. Fish of 0.036g. weight were able to grow on small Cladocera and Copepods. Juveniles of 25-29mm total length were able to feed on fry of Sarotherodon sp. D. labrax of 0.77g weight, fed Sarotherodon sp. showed an individual growth rate of 0.06-0.11 g/day and a food conversion rate of 8.18 when raised to the size of 3.57g. [NOT CONTROLLED OCR] |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1980 |
URL: http://archimer.ifremer.fr/doc/1980/publication-5383.pdf |
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| Mascle, Jean. |
| Numerous data obtained during recent marine geophysical surveys have been compiled together in order to present the structural framework of Niger Delta and adjacent areas. Seismic reflection results show that the delta slope is characterized by intense diapiric deformations and that the overall structure of the delta is fairly comparable to the structures of the Gulf Coast province margin or of Angolan margin. Seismics as well as gravity and magnetic measurements indicate the existence in the vicinity of the Niger delta of two oceanic trends apparently related to an early phase of opening of the South Atlantic. Both trends can tentatively be correlated on land with the major structures known in the southern and northern Benue trough. A comparion between... |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1976 |
URL: http://archimer.ifremer.fr/doc/1976/publication-5171.pdf |
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| Le rapport présenté par le CNEXO sur ses activités au cours de l'année 1971 s'efforce de montrer comment l'action de l'organisme s'est insérée dans un contexte général caractérisé par une accélération sensible des développements industriels en mer. Le plan adopté qui diffère de ceux des rapports précédents (1968-1969-1970), cherche à présenter de façon particulière dans la partie intitulée "Effets d'une politique d'incitation", certains aspects des activités de coordination du CNEXO et des résultats que l'action de l'organisme a permis d'atteindre au cours de l'année 1971. L'année 1971 a en effet été marquée par un certain nombre de succès remportés par l'industrie océanique française, notamment en matière d'équipement de l'exploitation pétrolière, dans la... |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1971 |
URL: http://archimer.ifremer.fr/doc/1971/rapport-4815.PDF |
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| Renard, Vincent. |
| Surface magnetic anomalies in the Famous area define a typical zebra pattern related to sea floor spreading.This pattern is symmetrical and corresponds to a 1.1 cm/yr half spreading rate up to anomaly 3'. The axis of the central block is off-set from the topographic axis of the rift and indicates either asymmetric spreading in the central zone or a ridge axis jump.These two hypotheses are discussed. [NOT CONTROLLED OCR] |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1976 |
URL: http://archimer.ifremer.fr/doc/1976/publication-5193.pdf |
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| Auffret, Gérard-andré; Pastouret, Léo. |
| The evolution of the sedimentary regime that prevailed on the Armorican margin from Late Cretaceous to late Tertiary is herein discussed and interpreted. The sedimentation budget of four components of the sediment : calcium carbonate, quartz, "less than 10 m non carbonate material,"and biogenic silica are quantified as is the composition of the coarse fraction and the textural properties of the sediment. Variation of the coarse fraction components is directly related to change in the oceanic environment (terrigenous supplies, productivity, calcium carbonate dissolution). Sediment texture is a function of many factors, comprising lithology, dissolution action, and hydrodynamic control. The medians of the silt fractions from bulk and decalcified sediments... |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1979 |
URL: http://archimer.ifremer.fr/doc/1979/publication-5256.pdf |
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| Registros recuperados: 769 | |
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