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Preservation of marine sand wave structures
Stride, A.H. (1988). Preservation of marine sand wave structures, in: de Boer, P.L. et al. (Ed.) Tide-influenced sedimentary environments and facies. Extended versions of papers presented at the Symposium on Classic Tidal Deposits, held August 1985 in Utrecht, Netherlands. pp. 13-22
In: de Boer, P.L. et al. (Ed.) (1988). Tide-influenced sedimentary environments and facies. Extended versions of papers presented at the Symposium on Classic Tidal Deposits, held August 1985 in Utrecht, Netherlands. D. Reidel Publishing: Dordrecht. ISBN 90-277-2622-1. ix, 530 pp., more

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    Marine/Coastal

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  • Stride, A.H.

Abstract
    Sand waves in fine sand are essentially a transient bedform that is limited to a range of relatively high sand transport rates. In spite of this their cross-bedded (cross-stratified) internal structure can be preserved. In present day tidal seas and inlets this preservation seems to be achievable in several ways. These include the abrupt cessation of a temporary unidirectional current, burial during lateral migration of channels in tidal inlets, burial on the lee slope of a migrating sand bank in the open sea, the operation of peak water movements on a sand transport-deposition path and changes in the dimensions of a sea brought about by erosion, deposition, regional tilting or rising sea level. Recognition of similar modes of preservation for some cross-bedded marine sands of Miocene, Eocene and Cretaceous ages make it possible to affirm with more certainty that these structures represent sand waves. Some alternative origins for shallow water marine cross-bedding are also considered.

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