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Lead-strontium isotopic variations along the East Pacific Rise and the Mid-Atlantic Ridge: A comparative study
Hamelin, B.; Dupré, B.; Allègre, Cl.J. (1984). Lead-strontium isotopic variations along the East Pacific Rise and the Mid-Atlantic Ridge: A comparative study. Earth Planet. Sci. Lett. 67(3): 340-350
In: Earth and Planetary Science Letters. Elsevier: Amsterdam. ISSN 0012-821X, more
Peer reviewed article  

Available in Authors 

Keywords
    Basalts; Comparative studies; Lead isotopes; Mid-ocean ridges; Strontium isotopes; AN, Mid-Atlantic Ridge [Marine Regions]; ISE, East Pacific Rise [Marine Regions]; Marine

Authors  Top 
  • Hamelin, B.
  • Dupré, B.
  • Allègre, Cl.J.

Abstract
    The authors have determined the Pb and Sr isotopic compositions in a number of fresh young oceanic basalts from the East Pacific Rise (between 20 degree N and 21 degree S latitudes), and from the Mid-Atlantic Ridge (between 65 degree N and 10 degree N). The results confirm the Pb-Sr isotopic correlation for mid-ocean ridges basalts obtained by Allegre et al. Cohen et al., Dupre and Allegre and the correlation between isotopic variation and the compatible trace elements ratios variation. A comparison between the Atlantic and Pacific results reveals that there is a wider range of values for the Atlantic than for the Pacific.

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