APPENDIX B 



GRANULOMETRIC DATA AND CUMULATIVE CURVE PLOTS 



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

 (RSA) size analyses of 180 sediment samples from 64 cores in the study area 

 (see Figs. 2, 3, and 4). 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 con- 

 sistent and slightly coarser than results of dry sieve analyses of identical 

 samples. To relate these RSA data to other sieve data, enpirical relations 

 for converting RSA means and standard deviation to sieve analyses equivalents 

 have been determined. The relationships, developed from RSA and sieve 

 analyses at a 0.25-phi interval, are: 



mean: L • = 1.0735 x.^ca + 0.1876 

 (Jisieve <))RSA 



RSA standard deviation values may be converted to sieve sorting equiva- 

 lents by the formula: 



standard deviation: a, sieve = 1.4535 o, RSA - 0.146 



38 



