SASS BATHYMETRY— GORDA RISE 



3.0 



Z 0.0- 



-1.0 



b «> ' ' '^ h «> 



bDb b b ° bOj.bK b 



" b "^ b b bt. b "" , b" ^ "' 



b b 



--1 



- O 



-., Q 



I 



-T- 

 20 



40 



1^ 

 80 



100 120 



AZIMUTH (degrees) 



140 



I 



160 



ui 



180 



Figure 6-6 Distribution of spectral parameters versus azimuth for 

 Gorda Rise spreading center bathymetry shown In Figure 6-4 

 and 6-5. Spectral slope parameter (above) shows no appar- 

 ent functional relationship to azimuth as predicted by 

 theory (notice that the mean slope Is -1,24, well below 

 -1.0, which would correspond to a Markov process). The 

 Intercept parameter (below) clearly shows the effect of 

 seafloor anisotropy and generally conforms to the sinu- 

 soidal model. Model parameters are as follows: mean ampli- 

 tude = 1.68 m, amplitude of sinusoid = 0.51 m, azimuth of 

 maximum energy = 115' (perpendicular to observed strike). 



92 



