Ion microprobe and ID-TIMS U-Pb dating on zircon grains from leg 173 amphibolites: Evidence for Permian magmatism on the West Iberian margin

Terra Nova

Volumn 16, Issue 4, 2004, Pages 226-231

  Gardien, V ^a   Paquette, J L ^b  

^a CNRS   (France)

^b UNIVERSITÉ BLAISE PASCAL   (France)

Author keywords

[No Author keywords available]

Indexed keywords

GEOCHRONOLOGY; MAGMATISM; OCEAN-CONTINENT TRANSITION; PERMIAN;

ATLANTIC OCEAN; IBERIAN MARGIN;

EID: 4043147224     PISSN: 09544879     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1365-3121.2004.00554.x     Document Type: Article

References (23)

1. Corfu, F., Hanchar, J.M., Hoskin, P.W.O. and Kinny, P., 2003. Atlas of zircon textures. In: Zircon: Reviews in Mineralogy and Geochemistry, Vol. 53 volume > (J. M. Hanchar and P. W. O. Hoskin, eds), pp. 469-500. Mineralogical Society of America.
2. Cornen, G., Girardeau, J. and Monnier, C., 1999. Basalts, underplated gabbros and pyroxenites record the rifting process of the west Iberian margin. Miner. Petrol., 67, 111-142.
3. Deloule, E., Chaussidon, M.. Glass, B.P. and Koeberl, C., 2001. U-Pb isotopic study of relict zircon inclusions recovered from muong nong-type tektites. Geochem. Cosmochim. Acta, 65, 1833-1838.
4. 39Ar dating of gabbros from the Ocean/Continent Transition of the western Iberia Margin. Proc. ODP Scientific Results, 149, 489-495.
5. Gallagher, K., Hawkesworth, C.J. and Montovani, M., 1995. Denudation, fission track analysis and the long-term evolution of passive margin topography: application to the southeast Brazilian margin. J. South Am. Earth Sci., 8, 65-77.
6. Gardien, V., Poupeau, G., Muceku, B., Hèbert, R., Baudouin, G. and Labrin, E., 2001. Apatite fission tracks dating of amphibolites from drilling site 1067, ODP leg 173 (Iberia Abyssal Plain): a record from the Jurassic rifting to the Pyrenean Collision. In: Non-Volcanic Rifting of Continental Margins: a Comparison of Evidence from Land and Sea (R. C. L. Wilson, R. B. Whitmarsh, B. Taylor and N. Froitzheim, eds). Geol. Soc. Lond. Spec. Publ., 187, 191-208.
7. Hoskin, P.W.O. and Schaltegger, U., 2003. The composition of zircon and igneous and metamorphic petrogenesis. In: Zircon: Reviews in Mineralogy and Geochemistry, Vol. 53 (J. M. Hanchar and P. W. O. Hoskin, eds), pp. 27-62. Mineralogical Society of America.
8. Jacobsen, S.B. and Wasserburg, G.J., 1980. Sm-Nd isotopic evolution of chondrites. Earth Planet. Sci. Lett., 50, 139-155.
9. Ludwig, K.R., 1993. Pbdat: a computer program for processing Pb-U-Th isotope data, version 1.24. United States Geological Survey, Open-File Report, 88-542.
10. Ludwig, K.R., 2001. User manual for Isoplot/Ex rev. 2.49. A geochronological toolkit for Microsoft Excel. Berkeley Geochronology Center Special Publication, 1a, 56 pp.
11. Manatchal, G., Froitzheim, N., Rubenach, M. and Turrin, B., 2001. The role of detachment faulting in the formation of an ocean-continent transition zone: insight from the Iberia Abyssal Plain. In: Non-Volcanic Rifting of Continental Margins: a Comparison of Evidence from Land and Sea (R. C. L. Wilson, R. B. Whitmarsh, B. Taylor and N. Froitzheim, eds). Geol. Soc. Lond. Spec. Publ., 187, 175-188.
12. Palain, C., 1976. Une série détritique térrigène: les grès de Silves, Trias et Lias inférieur du Portugal. Mem. Serv. Geol. Portugal. Lisbon, 25, 327.
13. Paquette, J.L. and Pin, C., 2001. A new miniaturized extraction chromatography method for precise U-Pb zircon geochronology. Chem. Geol., 176, 311-319.
14. Rubatto, D., 2002. Zircon trace element geochemistry; partitioning with garnet and the link between U-Pb ages and metamorphism. Chem. Geol., 184, 123-138.
15. Rubenach, M. and Wysoczanski, R., 1998. Metagabbros and metatonalites from the Ocean-Continent Transition, Iberia Abyssal Plain: syn-rift or Hercynian basement? Geological Society of Australia, Abstract no. 49, l4th Australian Convention, p. 386.
16. Schärer, U., Kornprobst, J., Beslier, M.O., Boillot, G. and Girardeau, G., 1995. Gabbro and related rock emplacement beneath rifting continental crust: U-Pb geochronological and geochemical constraints for the Galicia passive margin (Spain). Earth Planet. Sci. Lett., 130, 187-200.
17. Stacey, J.S. and Kramers, J.D., 1975. Approximation of terrestrial lead isotope evolution by a two-stage model. Earth Planet. Sci. Lett., 26, 207-221.
18. Steiger, R.H. and Jäger, E., 1977. Subcommission on geochronology: convention to use of decay constants in geo and cosmochronology. Earth Planet. Sci. Lett., 36, 359-362.
19. Tera, F. and Wasserburg, G.J., 1972. U-Th-Pb systematics in three Apollo 14 basalts and the problem of initial Ph in lunar rocks. Earth Planet. Sci. Lett., 14, 281-304.
20. 39Ar ages from the OCT zone, Iberia Abyssal Plain, ODP Leg 173; chronologic and thermochronologic constraints on the kinematics of lithosheric extension and continental break up. Proc. ODP Initial Reports, 173, 493.
21. Whitmarsh, R.B., Beslier, M.O. and Wallace, P., 1998. Proceedings of the Ocean Drilling Program, Initial Reports, 173. College Station, TX: Ocean Drilling Program.
22. Whitmarsh, R.B., Manatchal, G. and Minshull, T.A., 2001. Evolution of magma poor continetntal rifting from rifting to seafloor spreading. Nature, 433, 150-154.
23. Whitmarsh, R.B., Sawyer, D.S. and Klaus, A.and.Masson, D.G., eds. 1996. Proceedings of the Ocean Drilling Program, Initial Reports, 149. College Station, TX: Ocean Drilling Program.