Sediment distribution patterns and related depositional environments in the Atchafalaya Bay, Louisiana

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Abstract
Three sets of bottom sediment samples, totalling 563, were collected in the Atchafalaya Bay, Louisiana. Cluster analysis was applied to each set of data based on grain‐size distribution. Comparison between resulting clusters and depositional environments indicates that the results of cluster analysis are sedimentologically meaningful and environmentally significant. A follow‐up discriminant analysis shows the stability of the classification system. The system then, in turn, can be used to classify sediments from unknown sources in the study area.