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The triangular diagram used for classification of estuarine sediments: a new approach
Pejrup, M. (1988). The triangular diagram used for classification of estuarine sediments: a new approach, 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. 289-300
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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  • Pejrup, M.
Abstract
    Classification of recent estuarine sediments by means of statistical parameters derived from grain size distributions can be troublesome because a large amount of clay in the samples hampers computation. Instead, a triangular diagram based on sand, silt and clay content can be used. However, the diagram most commonly used does not distinguish the different estuarine facies and subfacies satisfactorily. A new diagram is proposed with the triangle divided by lines of constant textural composition of the mud fraction (smaller than 4Ø) and lines representing a constant sand content. Lines of constant textural composition of the mud fraction can be associated with the hydrodynamic conditions during sedimentation. The proposed diagram therefore offers the possibility of both separation and hydrodynamic interpretation of different recent estuarine facies.
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