(to a lesser extent) to local consolidation effects. The area appears to be 

 reworked to a large extent by organisms which probably contributes to its non- 

 layered or mixed depositional character. 



5. There is little apparent variation with depth or lateral variation in: 

 P.L., L.L., Tm, 7oC03 or 7oS, 7oZ or °LC, and this is likely due to a rapid sedi- 

 mentation rate and reworking as discussed above. The organic content (excluding 

 carbonates) is negligibly low. There does not appear to be a significant 

 organic decay and associated gas formation in situ . 



Average Elastic Properties 



From Table 4 and the assumption of a homogeneous, isotropic, elastic model for 

 the sediment (Jaeger, 1962), one can calculate average elastic properties 

 including: incompressibility (k) , Poisson's ratio (•^) , elastic or Young's 

 modulus (E) , shear modulus (G) , Lame's parameter (ri) , and shear wave speed (Vgg) 

 Average constants used in these determinations are listed in Table 5 (conver- 

 sion to cgs system is to facilitate comparisons in correlation section below) : 



TABLE 5 

 CONSTANTS FOR AVERAGE ELASTIC PROPERTIES 



Syinbol 



Value 



Units 



Property 



V/ater Density 



Solids Density 



Total Density 



Porosity 



Water Sound Speed 



Sediment Sound Speed 



Solids Sound Speed 



In Table 5 the solids sound speed (Vg) is as suggested in Nafe (1957), and V^ 

 is the average in situ water sound speed (Lewis, 1971). Table 6 lists the 



TABLE 6 

 AVERAGE ELASTIC PROPERTIES 



Properties 

 k 



Definition 



(1 - O }-i 



P„(V„)2 Ps(V3)2 



Units 



X lOlO dyne/cm2 



3.79 



3.58 



3 - (P^)(v:/k) 



(PtVc)/(l<+ 3) 

 k -(2/3)G 



Vc 



1 - V 



0.5 - V 



1/2 



dimensionless 



0.483 



0.463 



X 10^° dyne/cm2 3^74 3,40 

 X 10^ cm/sec 0.277 0.409 

 VII-26 



