STRATIGRAPHY OF THE DEEP-SEA FLOOR 77 



Table I\" shows that much lesser amounts are needed for present 

 thicknesses of calcareous ooze: only 565 m of original material are 

 required for a 500-m consolidated section of calcareous ooze. 



Table IV. Original Accumulation Necessary to Consolidate to Present Thicknesses 



The table is computed from tables illustrating consolidation and 

 by using the following equation : 



cq — ef H 



AH 



1 + e, 



A Hs CONSOLIDATION 



PRESENT THICKNESS 

 H - A H 



where H = original thickness 



AH —■ amount of consolidation 

 H — AH = present thickness 



and H = \^^ (H - AH) 



1 + Cf 



where eo is the original void ratio, and Cf is the final void ratio. 

 The relationship between void ratio and porosity is: 



1 — w 



