Discrimination between depositional environments using grain-size analyses.

Grain-size analyses were performed on 84 samples from six environments in the Burdekin River Delta, NE Queensland, Australia. The data were subjected to a stepwise discriminant function analysis and canonical analysis which showed that the grain-size characteristics of the sediments are sufficiently distinctive to distinguish the six different environments of deposition. The resulting reference set was then tested by plotting the grain-size characteristics of 66 samples from different environments of the Mississippi River Delta, Louisiana, and Galveston Island, Texas. 74% of the North American samples were correctly classified.