Abstract
Isotopic data for the Mesozoic tholeiites of Gondwanaland are used to evaluate theories explaining the chemistry of mantle-derived rocks; a crustal contamination hypothesis is discarded. These findings may contribute towards an understanding of crust–mantle evolution.
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References
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Brooks, C., Hart, S. Rb–Sr mantle isochrons and variations in the chemistry of Gondwanaland's lithosphere. Nature 271, 220–223 (1978). https://doi.org/10.1038/271220a0
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DOI: https://doi.org/10.1038/271220a0
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