. Bulletin of the British Museum (Natural History), Mineralogy. SEDIMENTATION IN NORTHERN CARDIGAN BAY 9i 0 12 3 4 5 6 7 8 9 10 11. Fig. 30. Distribution of lead based on spectrographs data. Contour interval 10 Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original British Museum (Natural History). London : BM(NH)

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