Table II. — Grain-size parameters of barrier beach sedi- 

 ments at Pt. Lay, Alaska on 25 September 1970, 

 during WEBSEC-70. 



Table III. — Types and abundances (in percent) of clay minerals in the eastern central Chukchi Sea bottom 

 sediments collected during WEBSEC-70 (GLA), or collected by the University of Washing1:on (SI, BB). 



A: Non-weighed peak-area percentages considered 



B: Weighted peak-area percentages (after Biscaye, 1965, p. 808) considered. 



♦Sample from S.E. Chukchi Sea; 60 miles due S. of Pt. Hope 



**Samples from Chirikov Basin due S. of Bering Strait 



Tr: Traces 



Ab: Absent 



191 



