Some more references can be found in the following papers (dealing with
late Precambrian varves).
Sonett, C.P. (1988): The lunar orbit in the Precambrian and the Elatina
sandstone laminae. Nature, 335: 806-808.
Williams, G.E. (1989): Late Precambrian tidal rhythmites in South Australia
and the history of the Earth's rotation. J. Geol. Soc. London, 146: 97-111.
Heinz Hilbrecht
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Heinz Hilbrecht
Geological Institute
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