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Evidence for the Azores mantle plume from strontium isotope geochemistry of the Central North Atlantic

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Abstract

Strontium isotope variations in basalts from the Mid-Atlantic Ridge and the Azores Islands support the Azores mantle plume model. The similarity of isotope ratios in Mid-Atlantic Ridge tholeiites from the Azores platform and Azores Islands alkali basalts implies that these different magma types are derived from the same mantle source but under different conditions of origin.

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Authors and Affiliations

  1. Graduate School of Oceanography, University of Rhode Island, Kingston, Rhode Island, 02881

    W. M. White & J.-G. Schilling

  2. Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC, 20015

    S. R. Hart

  3. Department of Earth and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139

    S. R. Hart

Authors
  1. W. M. White
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  2. J.-G. Schilling
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  3. S. R. Hart
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White, W., Schilling, JG. & Hart, S. Evidence for the Azores mantle plume from strontium isotope geochemistry of the Central North Atlantic. Nature 263, 659–663 (1976). https://doi.org/10.1038/263659a0

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  • DOI: https://doi.org/10.1038/263659a0

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