APPENDIX B 



GRANULOMETRIC DATA AND CUMULATIVE CURVE PLOTS 



This appendix contains the results of CERC's Rapid Sediment Analyzer (RSA) 

 size analyses of 258 sediment samples from 104 cores (Table B-1) in the study 

 area (see Fig, 2). Analyses are based on sand-size fractions only. 



The samples are identified by core number and sample interval below the top 

 of the core. Specific locations of the samples from each core are given in 

 Appendix A. 



Experience has shown that grain-size values from RSA analyses are consistent 

 and slightly coarser than results of dry sieve analyses of identical samples. 

 To relate these RSA data to other sieve data, empirical relations for converting 

 RSA means and standard deviation to sieve analyses equivalents have been deter- 

 mined. The relationships, developed from RSA and sieve analyses at a 0.25-phi 

 interval, are: 



"^^^"^ ^0>sieve = I-O^^^VSA " ^-^^^^ 



RSA standard deviation values may be converted to sieve sorting equivalents 

 by the formula: ' 



standard deviation: a sieve = 1.4535 a RSA - 0.146 



38 



