1 DR. VALENTINE: A couple of side-scan passes across the very 



2 narrow part, but I don't know if there were seismics. 



3 DR. BUTMAN: I don't think there were any seismics. I'm not sure. 



4 In my talk, I suggested a convergence towards the head of Lydonia, which 



5 at least is consistent with the finer-grain sediments at the head and 



6 then, actually, I listed bed forms and texture again to take care of 



7 Oceanographer, but I put them up there as a yes and a no. 



8 I think here, the issue is it really depends on what canyon you 



9 are in and what area of the canyon you are in. In some cases, there are 



10 and, again, I think we are probably talking about the axis here, not the 



11 walls. There may be fine-grain accumulation on the walls, but here, the 



12 answers vary depending on what canyon environment you are in or what 



13 canyon you are in. 



14 Is there discussion on that? 



15 DR. BOTHNER: That is probably not as controversial a list because 



16 you have just covered it in the previous question. 



17 DR. BUTMAN: Good. 



18 DR. KRAEUTER: Kraueter. I've got another question. That's fine- 



19 grain sediments accumulate in canyons; I think that is true. Do we have 



20 any evidence that they don't accumulate in canyons? 



21 DR. BUTMAN: Yes. In Oceanographer, there is evidence from the 



22 bed forms and the texture in the axis that they don't. 



23 DR. KRAEUTER: That is what that "no" really means. 



24 DR. BUTMAN: It means "yes" in Lydonia and "no" in Oceanographer. 



25 DR. KRAEUTER: But that's different. What I am saying is: That 



26 they don't accumulate is a separate question. I thought you were saying 



27 yes, we have evidence that they do accumulate in all those cases and 



28 that the "no" means no, we don't have evidence that they accumulate. 



29 DR. BUTMAN: That's not evidence. That means yes, they do and no, 



30 they don't. The evidence where we list it under the canyons, in 



31 Oceanographer, we have evidence that they don't accumulate and in 



32 Lydonia, we have evidence that they do accumulate. 



33 DR. KRAEUTER: That's fine. Fine. 



34 DR. VALENTINE: It seems to me that that's direct evidence. 



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