SILICATE - Si (pg-at/L) 

 DEPTH (METERS) 



10 20 30 40 50 60 70 80 90 100 110 120 130 



LI ' I ' I ' I ' I • I ' W7'"M.i I ' I ' I ' I ' U 



500 — 



1000 



1500 



2000 



2500 



3000 



3500 



4000 



4500 



1 ■ I ' I ■ I ■ I ■ I ■ I ■ I ■ I ■ I ■ I ■ I ■ I ■ I 



Figure 13. Envelope of silicate (/tg-at/1) versus depth (m) for all deep 

 stations taken during IWSOE-70, 14 February-21 March 1970. 



18 



