Yes, you can do it. Google sees the dynamic as a completely seperate URL. It has been a while since I needed to do it but if I remember correctly I used a CFSWITCH/CFCASE statement to provide the metatag for the pages I wanted removed. Hope this helps.
Harwich, Thanks for that. Am going to try it on a non-critical template and see what happens. As the individual pages are listed I presumed that Google sees them as separate. cfswitch will work well as there may be a few pages to remove.