1 I mean that is part of the equation, I think, in terms of getting 



2 material from the surface in the deeper waters. Then it becomes a 



3 question of: Do these particles that are generated nearby get into the 



4 canyon because now we have put it onto the particulate phase. 



5 I think that is a fair description of what happens to dissolved 



6 constituents in the surface water. 



7 DR. BUTMAN: All right, so there would be many ways to get there. 



8 DR. AYERS: I guess if we are talking about dissolved constituents 



9 of drilling, is that what we are concerned about? I mean, there are 



10 some other sources, yes, but it is very, very difficult to ever measure 



11 any dissolved constituents from drilling. 



12 I have tried to measure soluble chromium, for example. You can't 



13 measure dissolved chromium in the discharge immediately beneath the 



14 discharge column. It is in extremely low concentrations. 



15 DR. TEAL: That comes up later when we talk about that. But the 



16 mechanisms exist if there were dissolved chromium, so then the question 



17 "is there any"; that's another question. 



18 MR. LANE: We are also interested in other dissolved constituents 



19 like hydrocarbons, as well, if you want to talk about it in that 



20 context, too. 



21 DR. KRAEUTER: We have another potential for accumulation once it 



22 is on the bottom, assuming you are out of these zones of extremely 



23 active resuspensions, the mixing, down into the sediments. 



24 DR. BUTMAN: That's a good point. So, that is vertical mixing 



25 within sediments. 



26 DR. RAY: I have one other question. In your lead-210 work, do 



27 you actually find any stratification in those sediment areas in the 



28 canyon that actually allow you to date, or do you have a jumbled pattern 



29 of lead-210 as far as trying to date it? 



30 When you take a look at the core section of those sediments, are 



31 you getting stratification where you can actually date it or are you 



32 really getting a jumbled pattern of sediments as far as lead-210 is 



33 concerned? 



200 



