The rift-to-drift transition in the North Altantic: A stuttering start of the MORB machine?

Geology

Volumn 35, Issue 12, 2007, Pages 1087-1090

  Jagoutz, Oliver ^a   Müntener, Othmar ^a   Manatschal, Gianreto ^b   Rubatto, Daniela ^c   Péron Pinvidic, Gwenn ^b   Turrin, Brent D ^d   Villa, Igor M ^a,e  

^a UNIVERSITY OF BERN   (Switzerland)

^b UNIVERSITÉ DE STRASBOURG EOST   (France)

^c AUSTRALIAN NATIONAL UNIVERSITY   (Australia)

^d RUTGERS UNIVERSITY   (United States)

^e UNIVERSITY OF MILANO BICOCCA   (Italy)

Author keywords

Age determinations; Magma poor margins; MORB; Ocean continent transition; Rifting

Indexed keywords

AGE DETERMINATIONS; MAGMA-POOR MARGINS; OCEAN DRILING PROGRAM (ODP); OCEAN-CONTINENT TRANSITION;

BASALT; DEFORMATION; IGNEOUS ROCKS; TECTONICS; VOLCANIC ROCKS;

OCEANOGRAPHY;

MAGMATISM; MID-OCEAN RIDGE BASALT; OCEAN DRILLING PROGRAM; OCEAN-CONTINENT TRANSITION; PLUTONIC ROCK; RIFTING; SEAFLOOR SPREADING; URANIUM-LEAD DATING;

ATLANTIC OCEAN; ATLANTIC OCEAN (NORTH); IBERIAN MARGIN; NEWFOUNDLAND SHELF;

EID: 37449011853     PISSN: 00917613     EISSN: 00917613     Source Type: Journal    
DOI: 10.1130/G23613A.1     Document Type: Article

References (26)

1. Beard, J.S., Fullagar, P.D., and Sinha, A.K., 2002, Gabbroic pegmatite intrusions, Iberia Abyssal Plain, ODP Leg 173, Site 1070: Magmatism during a transition from non-volcanic rifting to sea-floor spreading: Journal of Petrology, v. 43, p. 885-905, doi: 10.1093/petrology/43.5.885.
2. Dick, H.J.B., Lin, J., and Schouten, H., 2003, An ultraslow-spreading class of ocean ridge: Nature, v. 426, p. 405-412, doi: 10.1038/ nature02128.
3. Duncan, R.A., 1984, Age progressive volcanism in the New England seamounts and the opening of the central Atlantic Ocean: Journal of Geophysical Research, v. B89, p. 9980-9990.
4. 39Ar dating of gabbros from the ocean /continent transition of the western Iberia margins: Preliminary results, Proceedings of the Ocean Drilling Program, Scientific results, 149: College Station, Texas, p. 489-495.
5. Gardien, V., and Paquette, J.L., 2004, Ion microprobe and ID-TIMS U-Pb dating on zircon grains from leg 173 amphibolites: Evidence for Permian magmatisin on the West Iberian margin: Terra Nova, v. 16, p. 226-231, doi: 10.1111/j.1365-3121.2004.00554.x.
6. Geldmacher, J., Hoernle, K., Klügel, A., v.d. Bogaard, P., Wombacher, F., and Berning, B., 2006, Origin and geochemical evolution of the Madeira-Tore Rise (eastern North Atlantic): Journal of Geophysical Research, v. 111, p. 19 pp.
7. Gradstein, F.M., Ogg, J.G., and Smith, A.G., 2004, A geologic time scale 2004: Cambridge, UK, Cambridge University Press, 610 p.
8. Hart, S., R., and Blusztajn, J., S., 2006, Age and geochemistry of the mafic sills, ODP site 1276, Newfoundland margin: Chemical Geology, v. 235, p. 222-237
9. Hébert, R., Gueddari, K., Lafleche, M.R., Beslier, M.O., and Gardien, V., 2001, Petrology and geochemistry of exhumed peridotites and gabbros at non-volcanic margins: ODP Leg 173 West Iberia ocean-continent transition zone: Geological Society [London] Special Publication, v. 187, p. 161-189.
10. Lau, K.W.H., Louden, K.E., Funck, T., Tucholke, B.E., Holbrook, W.S., and Hopper, J.R., 2006, Crustal structure across the Grand Banks-Newfoundland Basin continental margin (Part I) - Results from a seismic refraction profile: Geophysical Journal International, v. 167, p. 127-156, doi: 10.1111/j.1365-246X.2006.02988.x.
11. Merle, R., Schärer, U., Girardeau, J., and Cornen, G., 2006, Cretaceous seamounts along the continent-ocean transition of the Iberian margin: U-Pb ages and Pb-Sr-Hf isotopes: Geochimica et Cosmochimica Acta, v. 70, p. 4950-4976, doi: 10.1016/j.gca.2006.07.004.
12. Meyer, J., Mercolli, I., and Immenhauser, A., 1996, Off-ridge alkaline magmatism and seamount volcanoes in the Masirah island ophiolite, Oman: Tectonophysics, v. 267, p. 187-208, doi: 10.1016/S0040-1951(96)00094-7.
13. Müntener, O., and Manatschal, G., 2006, High degrees of melt extraction recorded by spinel harzburgite of the Newfoundland margin: The role of inheritance and consequences for the evolution of the southern North Atlantic: Earth and Planetary Science Letters, v. 252, p. 437-452, doi: 10.1016/j.epsl.2006.10.009.
14. Pe-Piper, G., Jansa, L.F., and Palacz, Z., 1994, Geochemistry and regional significance of the Early Cretaceous bimodal basalt-felsic associations on Grand Banks, eastern Canada: Geological Society of America Bulletin, v. 106, p. 1319-1331, doi: 10.1130/0016-7606- (1994)106<1319:GARSOT>2.3.CO;2.
15. Péron-Pinvidic, G., Manatschal, G., Minshull, T.A., and Sawyer, D., 2007, The tectono-sedimentary and morpho-tectonic evolution recorded in the deep Iberia-Newfoundland margins: Evidence for a complex break-up history: Tectonics, v. 26, p. doi: 10.1029/2006TC001970.
16. Russell, S.M., and Whitmarsh, R.B., 2003, Magmatism at the west Iberia non-volcanic rifted continental margin: Evidence from analyses of magnetic anomalies: Geophysical Journal International, v. 154, p. 706-730, doi: 10.1046/j.1365-246X.2003.01999.x.
17. Schärer, U., Girardeau, J., Cornen, G., and Boillot, G., 2000, 138-121 Ma asthenospheric magmatism prior to continental break-up in the North Atlantic and geodynamic implications: Earth and Planetary Science Letters, v. 181, p. 555-572, doi: 10.1016/S0012-821X(00)00220-X.
18. Sibuet, J.-C., Srivastava, S., and Manatschal, G., 2007, Exhumed mantle-forming transitional crust in the Newfoundland-Iberia rift and associated magnetic anomalies: Journal of Geophysical Research, v. 112, p. doi:10.1029/2005JB003856.
19. Tucholke, B.E., Sawyer, D.S., and Sibuet, J.C., 2007, Breakup of the Newfoundland-Iberia rift, in Karner, G.D., Manatschal, G., and Pinheiro, L.M., eds., Imaging, mapping and modelling continental lithosphere extension and breakup, Volume 282: Geological Society Special Publication, 488 p.
20. Tucholke, B.E., Sibuet, J.C., Klaus, A., et al., 2004, Proceedings of the Ocean Drilling Program, Initial reports; Leg 210: College Station, Texas, Texas A&M University, Ocean Drilling Program.
21. Villa, I.M., 2006, From nanometer to megameter: Isotopes, atomic-scale processes, and continent-scale tectonic models: Lithos, v. 87, p. 155-173, doi: 10.1016/j.lithos.2005.06.012.
22. Whitmarsh, R., Beslier, M.-O., Wallace, P.J., et al., 1998, Proceedings of the Ocean Drilling Program, Initial reports: Return to Iberia, Leg 173: College Station, Texas, Texas A & M University Ocean Drilling Program, p. 493.
23. Whitmarsh, R.B., Manatschal, G., and Minshull, T.A., 2001, Evolution of magma-poor continental margins from rifting to seafloor spreading: Nature, v. 413, p. 150-154, doi: 10.1038/35093085.
24. Whitmarsh, R.B., and Miles, P.R., 1995, Models of the development of the west Iberia rifted continental margin at 40 degrees 30 minutes N deduced from surface and deep- tow magnetic anoma- lies: Journal of Geophysical Research, v. 100, p. 3789-3806, doi: 10.1029/94JB02877.
25. Wilson, R.C.L., Manatschal, G., and Wise, S., 2001, Rifting along non-volcanic passive margins: Stratigraphic and seismic evidence from the Mesozoic successions of the Alps and Western Iberia: Geological Society Special Publication, v. 187, p. 429-452.
26. 238U disequilibrium: Science, v. 295, p. 107-110, doi: 10.1126/science. 1064295.