1 DR. AYERS: Some yes, some no. 



2 DR. KRAEUTER: I think, also, in the currents, we need to say 



3 something about whether they are up the canyons or down the canyons. 



4 They are not only decoupled, but they may be moving--! couldn't figure 



5 out whether they were moving up or down or in an oscillatory motion or 



6 what's going on. 



7 DR. BUTMAN: I think that it is clear that they go in both 



8 directions. They are primarily oscillatory up and down the canyon and 



9 the net flow, I think, is up for grabs. In some cases, we've seen it 



10 down canyon; in some places, we've seen it up canyon. 



11 Even if you see it from our measurements being up canyon or down 



12 canyon, what that means in terms of net transport, I think, is still an 



13 open question. 



14 DR. TEAL: I am still convinced that to really define that, I 



15 think you are going to have to be out there during, you know, the most 



16 extreme events. 



17 DR. BUTMAN: That may be true in some canyons if you want to say 



18 extremes. 



19 DR. COOPER: Brad, Dick Cooper. The two hypotheses that we are 



20 about ready to address here refer specifically to canyonheads. 



21 DR. BUTMAN: Right. 



22 DR. COOPER: There is a lot of difference between that and a 



23 submarine canyon. 



24 DR. AURAND: You don't have to restrict yourselves to canyonheads. 



25 DR. BUTMAN: Let's go back to this little sketch which I showed 



26 you first. That's another point which I was going to bring up later, 



27 that almost all of the discussion, with the exception of some of the 



28 biology work, most of the process work and geochemistry work has all 



29 been done landward of that shelf environment. 



30 I don't think we really want to restrict ourselves, but I think 



31 just from what we know, we may be only able to say what we can say, we 



32 may only be able to say it about the-- 



179 



