Abstract
FIG. 1 shows the profile of a free-air gravity anomaly obtained by HMS Hecate in the Bay of Biscay in 1967 (with two gravi-meters back-to-back to eliminate cross-coupling error). The track is shown in Fig. 2 together with the available deep-water refraction stations; D12 was shot by Ewing and Ewing1 and A by RRS Discovery in 1968 (R. B. Whitmarsh, personal communication).
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BACON, M., GRAY, F. Evidence for Crust in the Deep Ocean derived from Continental Crust. Nature 229, 331–332 (1971). https://doi.org/10.1038/229331a0
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DOI: https://doi.org/10.1038/229331a0
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