1 I would say, "These studies have shown that canyons exhibit widely 



2 different sedimentary environments." 



3 Then the next sentence--"Sediment texture, the intensity of bottom 



4 currents, and the predominant sedimentary processes are variable from 



5 canyon to canyon." 



6 DR. VALENTINE: The point I was trying to make is that you do find 



7 similar sedimentary environments in some of these canyons in part, that 



8 no canyon is identical to another one. in other words, on the eastern 



9 rim of Oceanographer and Lydonia Canyons you have these gravel lags. 



10 I mean, those are similar environments in two different canyons. 



11 However, there are other parts of those two canyons that vary widely. 



12 The canyon floors, for example, are much different. 



13 So when I say "--do not exhibit identical sedimentary 



14 environments--" I mean that you cannot say that because you know what is 



15 happening in this canyon you can automatically say that the next one is 



16 the same in all aspects. 



17 Certain processes in these canyons are the same from canyon to 



18 canyon. 



19 DR. BOTHNER: The intensity is different. Actually, what troubled 



20 me about the last sentence I heard was that the sediment sources are 



21 really not the same. I mean, the sediment sources are the same, but the 



22 sediment characteristics are not. 



23 DR. VALENTINE: This is a broad statement. The canyon 



24 characteristics part comes later in the document. This is just an up 



25 front explanation to let people know that canyons originate on the shelf 



26 and extend a long way off shore. 



27 We know that they are very variable. This workshop is mainly 



28 going to focus on the shallow part that is mostly enclosed by the shelf, 



29 because that is where the impact is going to be the greatest. 



30 DR. BOTHNER: I am in complete agreement with that. 



31 DR. VALENTINE: So this is just to set the stage. I did not want 



32 to get into too much detail about different canyons or more energetic 



33 than others. 



437 



