Late Tertiary Slumping on the Continental Slope of Southern Portugal


THE geological relationship of the Atlantic Ocean to Europe is recorded west of the British Isles and France in a sequence of continental shelf and slope deposits, although the latter seem to be missing on the northern and western sides of Iberia1. Accordingly, the southern continental slope of Iberia was examined (Fig. 1) for the missing parts of the record, particularly south of Portugal where a detailed bathymetric survey had revealed a series of long, sub-parallel ridges with a westerly to west–south–westerly trend (Hydrographer of the Navy, personal communication).

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  1. 1

    Curray, J., et al., Science, 154, 265 (1966).

  2. 2

    Drake, C. L., et al., Coll. Repr. Lamont Geol. Obs., No. 328 (1959).

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