APPENDIX B 



GRANULOMETRIC DATA AND CUMULATIVE CURVE PLOTS 



This appendix contains the results of Rapid Sand Analyzer (RSA) size 

 analyses of selected sediment samples from 15 cores in the study area 

 shown in Figure 8. Also included are sieve data from one sample too 

 coarse to process by RSA. 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 shown in Appendix A. 



Data include the frequency percent at 0.5-phi intervals along with 

 the cumulative percent which indicates the percentages of sand grains 

 coarser than the size shown. Also included are the median, mean, standard 

 deviation (sorting), skewness, and kurtosis for each sample. 



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, empiri- 

 cal 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: X(,,sieve = 1-0735 x^rsA ^ O-^^^e 



RSA standard deviation values may be converted to sieve sorting 

 equivalents by the formula: 



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



(j) 9 



In addition, cumulative curves of RSA data from the samples, plotted by 

 computer, are included. Sample plots are not necessarily in consecutive 

 order. 



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