56 



Coarse/ 1.5 

 Abundant 



Fine/ 

 Rare 



None 



Royal Rover Samples Msneralogy Meaos 



UPPER 

 No. of Samples 3 



OUTER 

 3 



QGrain size 



■ Black porous material 



■ Oark minerals 

 HFIyash 



■ Fibrous minerals 

 D Rock fragments 

 D Insect parts 



13 Plant fragments 

 D Benttiic Diatoms 



■ PlanktonIc Diatoms 

 n Textured Ostraoods 

 D Smootti Ostracods 

 a Pellets 



D Shell fragments 



@ Gastropod fragments 



□ Bryozoan fiagments 



Fagjire 4-1, Histogram comparing mean abundance (rare, common, abundant) and 

 particle size (fine, medium, coarse) for the mineralogical components 

 utilized as sediment tracers from the Royal River cores 



The Portland Disposal Site Capping Demonstration Project, 1995-1997 



