Table A-2. Particle-size distributions of representative natural 



Patuxent River sediment samples collected at Long Point 

 during 1973. 



14 March 



12 June 



27 August 



28 September 



(4-4) 



(5-5) 



(6-6) 



(1-1) 



(3-3) 



(2-2) 



percent 

 finer 



D 



percent 

 finer 



D 



percent 

 finer 



D 



percent 

 finer 



D 



percent 

 finer 



D 



percent 

 finer 



D 



95.0 

 86.3 

 80.0 

 77.5 

 70.0 

 65.0 

 62.5 

 55.0 

 51.3 

 43.8 



4.8 

 3.4 

 2.8 

 2.6 

 1.5 

 1.3 

 1.2 

 1.0 

 0.9 

 0.7 



92.5 

 84.0 

 79.5 

 74.3 

 69.0 

 67.0 

 64.5 

 61.3 

 59.3 

 54.8 

 47.4 



6.5 

 4.6 

 3.3 

 2.5 

 1.4 

 1.3 

 1.2 

 1.0 

 0.9 

 0.8 

 0.6 



93.9 

 89.8 

 77.6 

 75.5 

 73.5 

 67.4 

 61.2 

 57.1 



4.9 

 2.9 

 1.5 

 1.3 

 1.2 

 1.0 

 0.9 

 0.8 



87.2 

 74.3 

 58.5 

 54.3 

 45.9 



6.5 



2.8 

 1.4 

 1.2 

 1.0 



83.8 

 77.5 

 74.9 

 73.0 

 63.0 

 60.1 

 55.5 



4.4 

 2.4 

 2.1 

 2.0 

 1.4 

 1.2 

 1.0 



80.4 

 75.3 

 71.5 

 68.2 

 51.0 

 47.9 



4.5 

 3.1 

 2.6 

 2.2 

 0.8 

 0.7 



NOTE: Percent finer = fraction (expressed as percent) finer 

 by weight than Stokes' diameter D in micrometers. 

 (Numbers in parenthesis refer to lines in Fig. A-2.) 



48 



