Abstract
The mantle that supplied basalts to the North Atlantic Tertiary province at the time of continental breakup was isotopically similar to the present-day sub-oceanic mantle. There is no evidence for undepleted source regions beneath the continent at this time.
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Carter, S., Evensen, N., Hamilton, P. et al. Basalt magma sources during the opening of the North Atlantic. Nature 281, 28–30 (1979). https://doi.org/10.1038/281028a0
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DOI: https://doi.org/10.1038/281028a0
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