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Calm-water reefs and rough-water reefs of the Caribbean Pleistocene

100%

Geister J.

Acta Palaeontologica Polonica

1980

tom 25

nr 3-4

Examination of a number of late Pleistocene Caribbean shallow-water reefs revealed a pattern of wave-induced reef zonation analogous to that known from the Recent. Comparison of the zonal sequences of the Recent reefs with their fossil counterparts provides 8 key for the interpretation of paleo-hydrodynamic conditions, i.e. direction and degree of wave exposure during growth of the Pleistocene reefs. The spectrum of Pleistocene wave exposure recorded ranged from prevailing heavy surf generated by oceanic swell to no significant wave turbulence. The regional variation of reef types in the Caribbean area during late Pleistocene high sea level stands corresponds to the Recent pattern thus giving evidence for a basically similar distribution of wave energy (and consequently of wind force and directions) as can be observed today.

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1 Acta Palaeontologica Polonica

1 Geister J.

1 1980

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Calm-water reefs and rough-water reefs of the Caribbean Pleistocene