Table A- 3. 



Particle-size percentage by weight of suspended solids 

 in the mudflow from a shell dredge^. 



Meters from 



Size range (micrometers) 



discharge 



62-39 



38-19 



18-10 



9-5 



4-2 





(percent) 



(percent) 



(percent) 



(percent) 



(percent) 



0.0 



10.5 



20.3 



25.5 



27.7 



16.1 



15.25 



11.7 



26.5 



25.1 



25.6 



11.3 



30.5 



8.6 



21.2 



30.1 



32.0 



7.9 



122.0 



4.7 



17.6 



24.9 



29.3 



23.5 



244.0 



0.9 



14.5 



27.2 



34.2 



23.0 



1 . From May, 1973. 



Table A-4. Organic matter content of natural mud 

 collected by anchor dredge from the 

 Patuxent River (Long Point) 



Collection date 



Sample 



Organic content 



S.E. X 



1973 



No. 



X ± s 





17 June 



1 



9.4120 ± 1.0038 



0.3174 





2 



10.3580 ± 1.0272 



0.4594 





3 



10.9400 ± 0.3270 



0.1463 



28 June 



1 



9.8740 ± 0.3808 



0.1703 





2 



9.4720 ± 0.4127 



0.1846 





3 



8.9120 ± 0.6079 



0.2719 



14 July 



1 

 2 



11.2467 ± 0.5555 

 10.0983 ± 0.8682 



0.2268 

 0.3545 



27 August 



1 

 2 



11.4483 ± 0.8321 

 11.4617 ± 0.7849 



0.3397 

 0.3205 





3 



11.9700 ± 0.6712 



0.2740 





4 



12.6483 ± 0.4317 



0.1762 



18 September 

 25 September 



1 

 1 

 2 



11.8567 ± 0.3038 

 11.4217 + 0.4881 

 11.8750 ± 0.5131 



0.1240 

 0.1993 

 0.2095 





3 



11.2200 ± 0.4626 



0.1889 



NOTE: Samples were dried for 24 hours at 100° 

 Celsius, ground fine with a mortar and 

 pestle, then ashed for 3 hours at 500° 

 Celsius. Organic matter values reported 

 are percent loss of dry weight on igni- 

 tion. 



49 



