Clay fabric as an indicator of cyclic changes in an estuarine palaeo-environment: Lower Pleistocene, northern Campine Area, Belgium
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
In: Bulletin. Institut Royal des Sciences Naturelles de Belgique. Mededelingen. Koninklijk Belgisch Instituut voor Natuurwetenschappen. KBIN: Brussel. ISSN 0368-0177, meer
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| Auteurs | | Top |
- Wartel, S., meer
- Sethi, P.S.
- Bogemans, F., meer
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| Abstract |
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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