FREQUENCY 
= — 
oO a oO a 
Figure 3-21. 
25 
20 
10 
0.4 0.8 1.2 1.62.0 2.4 2.8 3.2 3.6 
BOUNDARY ROUGHNESS (CM) 
Oo 128 6 59 6 7 8 Ovo vi 
MEAN RPD DEPTH (CM) 
O23 4S GaSe Or Onn 
ORGANISM-SEDIMENT INDEX 
Frequency distributions of boundary roughness, RPD, 
and OSI values for the Southwest survey area, August 
1985. RPD and OSI values were only obtained at 
about 25% of the stations due to insufficient camera 
prism penetration. 
