108 



Royal River Mineralogy for Additional Cores 



Coarse/ -( 5 

 Abundant 



0.5 - 





i 





rrlr|tr|- 



RR-6 



RR-5 



RR-3 



H Grain size 



■ Black porous material 

 DDark minerals 

 DFIyash 



■ Fibrous minerals 

 DRock fragments 

 E3 Insect parts 



D Plant fragments 

 9 Benthic Diatoms 



■ Planktonic Diatoms 

 D Textured Ostracods 

 [l Smooth Ostracods 



■ Pellets 



■ Shell fragments 



11 Gastropod fragments 



■ Bryozoan fragments 



Royal River Samples Mineralogy Means 



Fine/ 

 Rare 



No. Of 

 Samples 



UPPEK 

 3 



MIDDLE OUTER 



5 3 



D Grain size 



■ Black porous material 

 nDari< minerals 

 DFIyash 



■ Fibrous minerals 

 El Rock fragments 

 mnsect parts 



D Plant fragments 



■ Benthic Diatoms 



■ Planktonic Diatoms 

 D Textured Ostracods 

 13 Smooth Ostracods 



■ Pellets 



■ Shell fragments 



H Gastropod fragments 

 II Bryozoan fragments 



Figure 4-30. Histograms of abundance (rare, common, abundant) and grain size (fine, 



medium, coarse) for the mineralogical components of (A) the three additional 

 Royal River cores, in comparison with the (B) mean mineralogical 

 composition for the baseline Royal River cores 



The Portland Disposal Site Capping Demonstration Project, 1995-1997 



