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Dällenbach A., Blunier T., Flückiger J., Stauffer B., Chappelaz J. & Raynaud D. (2000). Changes in the atmospheric CH4 gradient between Greenland and Antarctica during the Last Glacial and the transition to the Holocene. Geophysical research letters, 27(7), 1005–1008.
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Barthes L., Andre R., Cerisier J.C. & Villain J.P. (1998). Separation of multiple echoes using a high-resolution spectral analysis for SuperDARN HF rdars. Radio science, 33(4), 1005–1017.
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Harding A.M.A., Piatt J.F. & Hamer K.C. (2003). Breeding ecology of horned puffins in Alaska: annual variation and effects of El Niño. Can. J. Zool., 81, 1004–1013.
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Homberg, C.; Bergerat, F.; Angelier, J.; Garcia, S. (2010). Fault interaction and stresses along broad oceanic transform zone: Tjrnes Fracture Zone, north Iceland. Tectonics, 29(1), TC1002.
Abstract: Transform motion along oceanic transforms generally occurs along narrow faults zones. Another class of oceanic transforms exists where the plate boundary is quite large (∼100 km) and includes several subparallel faults. Using a 2-D numerical modeling, we simulate the slip distribution and the crustal stress field geometry within such broad oceanic transforms (BOTs). We examine the possible configurations and evolution of such BOTs, where the plate boundary includes one, two, or three faults. Our experiments show that at any time during the development of the plate boundary, the plate motion is not distributed along each of the plate boundary faults but mainly occurs along a single master fault. The finite width of a BOT results from slip transfer through time with locking of early faults, not from a permanent distribution of deformation over a wide area. Because of fault interaction, the stress field geometry within the BOTs is more complex than that along classical oceanic transforms and includes stress deflections close to but also away from the major faults. Application of this modeling to the 100 km wide Tjrnes Fracture Zone (TFZ) in North Iceland, a major BOT of the Mid-Atlantic Ridge that includes three main faults, suggests that the Dalvik Fault and the Husavik-Flatey Fault developed first, the Grismsey Fault being the latest active structure. Since initiation of the TFZ, the Husavik-Flatey Fault accommodated most of the plate motion and probably persists until now as the main plate structure.
Keywords: oceanic transform; fault interaction; stresses; Iceland; slip transfer; 8150 Tectonophysics: Plate boundary: general; 8164 Tectonophysics: Stresses: crust and lithosphere; 8020 Structural Geology: Mechanics, theory, and modeling
Programme: 316
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Landais A, Waelbroeck C, Masson-Delmotte V. (2006). On the limits of Antarctic and marine climate records synchronization: Lag estimates during marine isotopic stages 5d and 5c. Paleoceanography, 21, 1001.
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Halsey, L.G., Bost, C.A., Handrich, H. (2007). A thorough and quantified method for classifying seabird diving behaviour. Polar Biol., 30, 991–1004.
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C. Tape, Q. Liu, A. Maggi, J. Tromp. (2009). Adjoint tomography of the southern California crust. Science, 325, 988–992.
Abstract: Using an inversion strategy based on adjoint methods, we developed a three-dimensional seismological model of the southern California crust. The resulting model involved 16 tomographic iterations, which required 6800 wavefield simulations and a total of 0.8 million central processing unit hours. The new crustal model reveals strong heterogeneity, including local changes of ±30% with respect to the initial three-dimensional model provided by the Southern California Earthquake Center. The model illuminates shallow features such as sedimentary basins and compositional contrasts across faults. It also reveals crustal features at depth that aid in the tectonic reconstruction of southern California, such as subduction-captured oceanic crustal fragments. The new model enables more realistic and accurate assessments of seismic hazard.
Programme: 133
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De Linage, C., Hinderer, J., & Rogister, Y. (2007). A search for the ratio between gravity variation and vertical displacement due to a surface load. Geophysical journal international, 171, 986–994.
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Marchandeau S, Bertagnoli S, Léonard Y, Santin-Janin H, Péralta B, Le Gall-Reculé G, Pontier D,. (2010). Serological evidence for the presence of non-pathogenic rabbit haemorrhagic disease virus-like strains in rabbits (Oryctolagus cuniculus) of the Kerguelen archipelago. Polar Biol., 33(7), 985–989 -989.
Abstract: Antibodies raised against a Lagovirus were found in healthy rabbits Oryctolagus cuniculus sampled in 2003 and 2004 in the Kerguelen archipelago. The serological test we used enabled the detection of antibodies due to both pathogenic and non-pathogenic viruses related to the rabbit haemorrhagic disease virus (RHDV). The overall proportion of seropositive rabbits was 35% and differed between sites. Since previous studies have failed to detect antibodies raised against pathogenic RHDV strains, the antibodies detected in the present study were likely due to non-pathogenic strains. The interest of these strains circulating in the Kerguelen archipelago is that they have evolved independently of those detected in the other parts of the world and should derive from an ancestral RHDV precursor. Their characterization may help understanding the evolution of the virus and the emergence of the disease.
Keywords: Biomedical and Life Sciences,
Programme: 279
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Dehant V., Ph. Lognonné Ch. Sotin, with the participation of the whole NetLander team (J.-P. Barriot, J.-J. Berthelier, J.-L. Counil, G. Delory, R. Jaumann, A.-M. Harri, M. Menvielle et T. Spohn). (2004). Network science/Netlander: an European mission to study the planet Mars. Planetary and space science, 52, 977–985.
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