Deformation partitioning in a slow spreading ridge undergoing oblique extension: Mohns Ridge, Norwegian Sea

Tectonics

Volumn 15, Issue 4, 1996, Pages 870-884

  Dauteuil, O ^a   Brun, J P ^a  

^a UNIVERSITÉ DE RENNES 1   (France)

Author keywords

[No Author keywords available]

Indexed keywords

DEFORMATION;

BRITTLE DUCTILE TRANSITIONS; DEFORMATION PARTITIONING; DEPTH VARIATION; DIFFERENT STRUCTURE; OBLIQUE EXTENSION; SLIP DISPLACEMENTS; SLOW-SPREADING RIDGES; TRANSVERSE VARIATIONS;

LANDFORMS;

DEFORMATION; DEFORMATION PARTITIONING; FAULTING; MID OCEAN RIDGE; MID-OCEAN RIDGES; OBLIQUE EXTENSION; PARTITIONING; SEAFLOOR SPREADING;

NORWEGIAN SEA, MOHNS RIDGE;

EID: 0030423233     PISSN: 02787407     EISSN: None     Source Type: Journal    
DOI: 10.1029/95TC03682     Document Type: Article

References (43)

1. Allemand, P., Approche expérimentale de la mécanique du rifting continental, thesis, 197 PP., Univ., Rennes 1, Rennes, France, 1988.
2. Allemand, P., and J.-P. Brun, Relation between continental rift width and rheological layering of lithosphere: A working hypothesis, Tectonophysics, 188, 63-69, 1991
3. Auzende, J.-M., et al., Active spreading and hydrothermalism in North Fiji basin (SW Pacific): Results of the Japanese French Cruise Kaiyo 87, Mar. Geophys. Res., 12, 269-283, 1990.
4. Bonatti, E., and k. Crane, Oscillatory spreading explanation of anomalously old uplifted crust near oceanic transforms, Nature, 300, 343-345, 1982.
5. Brun, J.-P., and P. Choukroune, Normal faulting, block tilting and décollement in the stretched crust. Tectonics, 2, 345-356, 1983.
6. Carbotte, S.M. and K.C. Macdonald, The axial topographic high at intermediate and fast spreading ridges. Earth Planet. Sci. Lett., 128, 85-97, 1994.
7. Carbotte, S., S.M. Welch and K.C. Macdonald, Spreading rates, rift propagation, and fracture zone offset histories during the past 5 My on the Mid-Atlantic Ridge; 25°-27°30′S and 31°-34°30′S, Mar. Geophys. Res., 13, 51-80, 1991.
8. Chen, Y., and W.J. Morgan, A nonlinear model for mid-ocean ridge axial topography, J. Geophys. Res., 95, 17,583-17,604, 1990a.
9. Chen, Y., and W.J. Morgan, Rift valley/ no rift valley transition at mid-ocean ridges, J. Geophys. Res., 95, 17,571-17,581, 1990b.
10. Dauteuil, O., Fault pattern from Seabeam processing: The western part of the Blanco fracture zone (NE Pacific), Mar. Geophys. Res., 17, 17-35, 1995.
11. Dauteuil, O., and J.-P. Brun, Oblique rifting in a slow-spreading ridge, Nature, 361, 145-148, 1993.
12. Dauteuil, O., J.-P. Brun, F. Avedik, and L. Géli, Caractéristiques structurales du rifting oblique dans la ride de Mohns (Mer de Norvège), C. R. Acad. Sci., Ser. 11, 311, 357-363, 1990.
13. Embley, R.W., and D.S. Wilson, Morphology of the Blanco Transform faul zone-NE Pacific: Implications for its tectonic evolution, Mar. Geophys. Res., 14, 25-45, 1992.
14. Géli, L., Etude de la dorsale de Mohns, au voisinage de 72°N, en mer de Norvège et du Groenland: Mise en evidence de différentes phases locales d'expansion, du Miocène supérieur à l'actuel, C. R. Acad . Sci., Ser. II,313, 1291-1300, 1991.
15. Géli, L., Volcano-tectonic events and sedmentation since Late Miocene times at Mohns ridge, near 72°N, in the Norwegian-Greenland sea, Tectonophysics, 222, 417-444, 1993.
16. Géli, L., V. Renard, and C. Rommevaux, Ocean crust formation processes at Mohns Ridge, near 72°N: a model for a very slow spreading ridge, based on magnetic gravity and seismic data, J. Geophys. Res., 99, 2995-3013, 1994.
17. Gibbs, A.D., Structural evolution of extensional basin margins, J. Geol. Soc London, 141, 609-620, 1984.
18. Grindlay, N.R., and P.J. Fox, Morphology and tectonics of the Mid-Atlantic Ridge (25°-27°30′S), J. Geophys. Res., 97, 6983-7010, 1992.
19. Grindlay, N.R., P.J. Fox, and K.C. Macdonald, Second-order ridge axis discontinuities in the South Atlantic: morphology structure and evolution, Mar. Geophys. Res., 13, 21-49, 1991.
20. Gudmundsson, A., Geometry, formation and development of tectonic fractures on the Reykjanes Peninsula, southwest Iceland, Tectonophysics, 139, 295-308, 1987.
21. Hirschleber, H.F., W. Balzer, B. Von Bodungen, and J. Thiede, Berichte au dem Sonderforschungsbereich 313 "Sedimentation im Europäisschen Nordmeer", Forschungsshiff Meteor, Reise 7, Kiel, Germany, 1988.
22. Lecomte, I., Structure crustale d'une dorsale lente: Tomographie sismique 3D sur la dorsale de Mohns (72°20′N-1°30′E), thesis, Univ. L. Pasteur, Strasbourg, France, 1990.
23. Lonsdale, P., Segmentation of the Pacific-Nazca spreading center, 1°-20°S, J. Geophys. Res., 94, 12,197-12,225, 1989.
24. Macdonald, K.C., The crest of the Mid-Atlantic Ridge: Model for crustal generation processes and tectonics, In The Geology of North America , vol. M, The Western North Atlantic Region, edited by P.R. Vogt and B.E. Tucholke, 51-68, Geol. Soc. of Am., Boulder, Colo., 1986.
25. Macdonald, K.C., P.J. Fox, L.J. Perram, M.F. Eisen, R.M. Haymon, S.P. Miller, S.M. Carbotte, M.-H. Cormier, and A.N. Shor, A new view of the mid-ocean ridge from the behaviour of the ridge-axis discontinuities, Nature, 335, 217-225, 1988.
26. Macdonald, K.C., et al., The East-Pacific Rise and its flanks 8-18°N: History of segmentation, propagation and spreading direcion on SeaMark II and SeaBeam studies. Mar. Geophys. Res., 14, 229-344, 1992.
27. Parson, L.M., et al., En échelon axial volcanic ridges at Reykjanes ridge: A life cycle of volcanism and tectonics. Earth Planet. Sci. Lett., 117, 73-87, 1993.
28. Perry, R.K., Bathymetry of the Nordic Seas, in The Nordic Seas, edited by B.C. Hurdle, 211-236, Springer-Verlag, New York, 1986.
29. Renard, V., and J.P. Allenou, SeaBeam, multibeam echo-sounding on Jean Charcot: description and first results, Int. Hydrogr. Rev., 54 (1) 19-27, 1979.
30. Renard, V., F. Avedik, L. Geli, I. Lecomte, J.P. Le Formal, and A. Nercessian, Characteristics of the Oceanic crust formation of the part of the Mohns Ridge, near 72°N, in the Norwegian-Greenland sea, Morphological study and underway geophysics. Terra Cognira, 1, 206, 1989.
31. Sauter, D., Utilisation du traitement d'images en géologie structurale: Recherches méthodologiques et applications multiscalaires, thesis, Univ. L. Pasteur, Strasbourg, France ,1988.
32. Sauter, D., B. Mawhin, A. Froesch, and M. Ruhland, Mise en évidence d'une maille tectonique par autocorrélation d'image, Sci. Geol. Bull., 42, 193-205, 1988.
33. Searle, R.C., and A.S. Laughton, Fine-scale sonar study of tectonics and volcanism on the Reykanes ridge, Oceanol. Acta, 4, 5-13, 1981.
34. Sempéré, J.C., G.M. Purdy, and H. Shouten, The segmentation of the Mid-Atlantic Ridge between 24°N and 34°40′N, Nature , 344, 427-431, 1990.
35. Sempéré, J.C., J. Lin, H.S. Brown, H. Schouten, and G.M. Purdy, Segmentation and morphotectonic variations along slowspreading center: the Mid-Atlantic Ridge (24°00N - 30°40′N), Mar. Geophys. Res., 15, 153-200, 1993.
36. Souriot, T. Cinématique de l'extension postpliocène en Afar, Univ. of Rennes, Mém. de Géosci. Rennes, 50, 206 pp., Rennes, France, 1993.
37. Talwani, M., and O. Eldholm, Evolution of the Norwegian-Greenland Sea, Geol Soc. Am. Bull., 88, 969-999, 1977.
38. Tapponnier, P. and J. Franchetau, Necking of the lithosphere and the mechanics of slowly accreting palte boundaries, J. Geophys, Res., 83, 3955-3970, 1978.
39. Tron, V., and J.-P. Brun, Experiments on oblique rifting in brittle-ductile systems, Tectonophysics, 188, 71-84, 1991.
40. Unternehr, P., Etude structurale et cinématique de la Mer de Norvège et du Groenland-Evolution du microcontinent de Jan Mayen", thesis, Univ. de Bretagne Occidentale, Brest, France, 1982.
41. Vogt, P.R., The present plate boundary configuration, in The Geology of North America, edited by P.R. Vogt and B.E. Tucholke, pp. 189-204, Geol. Soc. of Am., vol. M, The Western North Atlantic Region. Boulder, Colo., 1986.
42. Vogt, P.R., L.C. Kovacs, C. Bernero, and S.P. Srivastava, Asymmetrical geophysical signatures in the Greenland-Norwegian and southern Labrador seas and the Eurasia basin, Tectonophysics, 89, 95-150, 1982.
43. Vogt, P.R., R.K. Perry, R.H. Feden, H.S Fleming, and N.Z. Cherkis, The Greenland-Norwegian Sea and Iceland environment: Geology and geophysics, in The Arctic Ocean, vol. 5, edited by B.C. Hurdle, pp. 493-598, Springer-Verlag, New York, 1981.