Collected reprints: Abstract 3153

Collected reprints

Abstract

Wartel, S.; Sethi, P.S.; Bogemans, F. (1996). Clay fabric as an indicator of cyclic changes in an estuarine palaeo-environment : Lower Pleistocene, northern Campine Area, Belgium.. Bull. K. Belg. Inst. Nat. Wet. 66: 193-202

SEM photographs of the Turnhout Member (Lower Pleistocene), reveal a vertical cyclicity of 2 main clay-fabric types: (a) face-to-face domains and (b) edge-to-face domains, each of them indicating the existence of respectively dispersed particles deposited in a salt-water environment, the transition being marked by intermediate clay-fabric types. It is suggested that the sequence corresponds to fluctuations in the position of the fluvial-marine equilibrium, related to important changes in river runoff of tidal amplitude. These observations indicate the utility of applying clay-fabric analyses to achieve a higher resolution in palaeo-environmental interpretations.

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