Table C-1 . Offshore samples, Duck, North Carolina, 

 7-9 August 1979. — Continued 



Sample Range Distance Depth Date Time Description 



No. (m) (m) (m) 



Fine sand, sinuous to linguold ripples; 

 X = 4 cm 

 a = 2 cm 

 K = 20° (estimate) 



Very fine to fine sand, two ripple sets, 

 bioactive (snails, worms), good visibility; 



X = 5 to 10 cm 



a = 1 to 2 cm 



K = 0° 



Fine sand, ripples, organic debris, abundant 

 bottom life, good visibility; 



X = 5 cm 



a = 1 to 2 cm 



< = 10° 



Fine sand, ripples, abundant bottom fauna with 



scant sand dollar zone; 



X = 5 to 8 cm 



ci = 1 to 1.5 cm 



ic = 350° 



Fine sand, two to three ripple sets, poor 

 visibility; 



X = 8 to 12 cm 



a = 2 to 4 cm 



< = 350° 



At waverider buoy — fine to medium sand bottom, 

 two ripple sets, sparce bottom fauna; 



X =• 2 to 6 cm 



o ^ 1 to 2 cm 



IT = 0° 



Fine to medium sand bottom, tw3 ripple sets, 

 sparce bottom fauna; 



X = 5 cm 



a =■ 1 cm 



< =■ 10° 



Medium sand and shell fragments, two ripple 

 sets, heavy minerals in troughs; 



X => 5 to 8 cm 



a = 1 to 2 cm 



< = 350° 



Fine sand and silt bottom, oscillation ripples 

 strong bioactivity, zero visibility; 



a = 1 to 2 cm 



III-2 



76 S. 



1750 



14.6 



9 



09:44 



Very fine silty sand, ripples, no vis: 



1II-3 



76 S. 



1675 



14.0 



9 



10:07 



Very fine sand, ripples, no vlsibillt; 



III-4 



76 S. 



1370 



10.7 



9 



10:33 



Fine sand, ripples; 

 X = 7.5 to 8 cm 

 a = 1 cm 

 < = 15° 



III-5 



76 S. 



1088 



9.8 



9 



10:50 



Fine sand, ripples; 

 X = 9 cm 

 a = 1 .5 cm 

 K = 5° 



II 1-6 



76 S. 



743 



7.9 



9 



11:08 



Fine sand, ripples, 1-mile visibility 

 X = 7 to 10 cm 

 a = 2 cm 

 < = 10° 



94 



