Výsledky vyhledávání - "Sichler, Bertrand"

Three-dimensional inversion of marine magnetic anomalies on the equatorial Atlantic Ridge (St. Paul Fracture Zone): Delayed magnetization in a magmatically starved spreading center?

Autor: Sichler, Bertrand, Hekinian, Roger

Publikováno v: Journal Of Geophysical Research Solid Earth (0148-0227) (Amer Geophysical Union), 2002-12, Vol. 107, N. B12, P.

The St. Paul Fracture Zone (FZ) in the equatorial Atlantic is interrupted by three intratransform ridge (ITR) spreading centers. A detailed magnetic survey, corrected for the diurnal variations using a moored magnetic station, six submersible dives,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_________7::5064dae6d6b26bf3b4e33f960df16924
https://archimer.ifremer.fr/doc/00000/10223/

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Contrasting volcanic-tectonic processes during the past 2 Ma on the Mid-Atlantic Ridge: submersible mapping, petrological and magnetic results at lat. 34°52′ N and 33°55′ N

Autor: Bideau, Daniel, Hékinian, Roger, Sichler, Bertrand, Gràcia, Eulàlia, Bollinger, Claire, Constantin, Marc, Guivel, Christelle

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
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34 pages, 10 figures, 5 tables
In August–September of 1995, 20 Nautile dives and detailed magnetic surveys (spaced every 1.8 km) were undertaken on two segments of the Mid-Atlantic Ridge between the Oceanographer and Hayes fractures zones. The

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http://hdl.handle.net/10261/201187

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Charlie-Gibbs Fracture Zone.

Autor: Olivet, Jean-Louis, Le Pichon, Xavier, Monti, Serge, Sichler, Bertrand

Publikováno v: Journal of Geophysical Research; 1974, Vol. 79 Issue 14, p2059-2072, 14p

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Deep-sea sediments texture and magnetic fabric, indicators of bottom currents regime

Autor: Auffret, Gerard, Sichler, Bertrand, Coleno, B

Publikováno v: Oceanologica Acta (0399-1784) (Gauthier-villars), 1981, Vol. 4, N. 4, P. 475-488

Critical speeds for erosion, transport and deposition of sedimentary particles and prevailing bottom currents intensities are in such a range that the textural properties of the sediment silt fraction may be correlated to the intensity of the deep ci

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_________7::cc002e3d40577b12dfebcd006ec9b97d
https://archimer.ifremer.fr/doc/00000/5358/

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Age précambrien de dolérites de la dorsale réguibat (Mauritanie)

Autor: Dosso, Laure, Vidal, Philippe, Sichler, Bertrand, Bonifay, Alain

Publikováno v: Comptes rendus Académie des sciences de Paris (Académie des sciences de Paris), 1979-02, Vol. 288, N. 8, P. 739-742

Rb-Sr age determination on ten doleritic samples from the basement of Mauritania yield on average of 1 609 45 M.A. ( ?87 Rb = 1,42.10- an- ). Four among the specimens have been dated by the K-Ar method with ages of 1.750, 1.610, 832 and 1.46 x M.Y. T

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https://archimer.ifremer.fr/doc/00000/5251/

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Structures sous-marines des bassins sédimentaires de Porcupine et de Rockall

Autor: Le Pichon, Xavier, Cressard, Alain, Mascle, Jean, Pautot, Guy, Sichler, Bertrand

Publikováno v: Comptes Rendus Académie des Sciences de Paris (Académie des Sciences), 1970-06, Vol. 270, P. 2903-2906

In 1921 the "Pourquoi pas?" undertook, under the authority of J. Charcot, an identification of the Rockall bank (2). The petrographic nature of this relief was studied by Lacroix (2) who concluded to aegirine granite dated, since then, by Miller (3)

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https://archimer.ifremer.fr/doc/00000/4873/

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Sismique réflexion oblique dans le fossé de Rockall

Autor: Sichler, Bertrand, Mascle, Jean, Cressard, Alain

Publikováno v: Comptes rendus hebdomadaires des séances de l'Académie des sciences. Série D, Sciences naturelles (0567-655X) (Gauthier-Villars), 1972, Vol. 275, P. 959-962

La comparaison d'un profil de sismique réflexion oblique avec les résultats d'Une station de sismique réfraction effectuée antérieurement permet de préciser l'extension probable de la faille « JeanCharcOt » vers le Nord-Est du fossé de Rocka

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https://archimer.ifremer.fr/doc/00318/42966/

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La faille transformante Gibbs entre le Rift et la marge du Labrador

Autor: Olivet, Jean-louis, Sichler, Bertrand, Thonon, Pierre, Le Pichon, Xavier, Martinais, Guy, Pautot, Guy

Publikováno v: Comptes Rendus Académie des Sciences de Paris (Académie des Sciences), 1970-09, Vol. 271, P. 949-952

The Gibbs fracture moves the central Rift of the Mid-Atlantic Ridge 370 km to the left at latitude 53O north. It is the only fracture located between Europe and America that can be compared to the large equatorial fractures mapped by B.C. Heezen and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=od_________7::8b2137b87475abbd38b180ca92c34244
https://archimer.ifremer.fr/doc/00000/4875/

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