3. Submersible observations? Y 0,L,A,H 



4. Sediment texture? Y 0,L,A,H 



5. Seismic surveys? Y L 



6. Accumulation rates? Y L 



Sources: Butman for flow regime, Bothner for barium and accumulation 

 rates, Valentine for submersible observations and textural 

 analysis, and Twichell for high-resolution seismic data. 



This information as presented met with general agreement. 



■ Does fine-grained sediment accumulate on canyon floors (over last few 

 thousand years)? 



Y/N C 



1. Measured accumulation Y L 



2. Texture and bedforms Y L 

 Texture and bedforms N 



3. Seismic surveys Y L 



4. Convergent transport Y L 



Sources: Butman for convergent transport data, Bothner for measured 



accumulations, Valentine for texture and bedforms, and Twichell 

 for seismic data. 



86 



