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Profile of 87Sr/86Sr for the Phanerozoic (after Veizer et al., 1999) (upper); profile of 87Sr/86Sr for the Carboniferous (lower).
Click on image for enlargement.
Profile of 87Sr/86Sr for the Phanerozoic (after Veizer et al., 1999) (upper); profile of 87Sr/86Sr for the Carboniferous (lower).