Table 7. — Core descriptions (E-Series) — Continued 



Core 



No. 



Interval 

 (cm.) 



Color 



Name 



Description 



21 



22 



25 



26 



28 



29 



0-9.5 

 9.5-17.0 



17.0-19.5 

 19.5-35.5 



35.5-38.5 

 38.5-49.5 

 0-3.0 

 3.0-59.0 

 0-7.5 



7.5-9.5 



9.5-12.0 



12.0-15.0 



15.0-20.5 



20.5-53.0 

 0-12.5 



12.5-18.5 



18.5-21.0 



21.0-23.0 

 23.0-28.5 



28.5-32.5 

 32.5-37.5 



37.5-47.0 

 0-19.5 



19.5-25.5 

 0-17.0 



17.0-18.5 

 18.5-22.0 



22.0-23.5 

 23.5-28.5 



10YR4/2, 

 10YR5/4. 



5Y5/2 



5Y4/4, 



10YR4/2. 

 5Y5/2 



5Y4-4, 



10YR4/2. 

 5Y4/1 



5Y4/4 



5G4/1 



5YR3/2, 5YR2/2, 

 10YR4/2. 



5Y5/2, 5Y4/1 .._ 



5Y5/2 



10YR4/2 -_ 



5Y5/2 



10YR4/2, 

 5YR3/2, 

 10YR5/4. 

 5Y4/1 ____ 



10YR5/4 -. 



5Y4/1 



10YR5/4 .. 



5Y4/1 



10YR5/4 -_ 



5Y4/1 



10YR4/2 .. 



5Y4/1 



10YR4/2, 



5YR3/2. 

 5YR4/1 ._ 

 5YR4/2 __ 



5YR4/1 

 5YR4/2 



do Sharp color change with unit below ; mottled. 



do Distinct from units above and below but 



mottled 10YR4/2 to 5YR4/4; may be dis- 

 turbed. 

 do Moderate color change with units above and 



below. 

 Clay, silty, Homogeneous over most of unit with sections 



sandy. 22-23 cm and 29-30 cm somewhat browner. 



Possibility of being disturbed. Sandy layer 



32.5-33.5 cm. 

 Clay, silty Sharp color change with units above and 



below; brittle. 

 Clay, silty, Homogeneous over entire unit except for 



sandy. sandy layer at 41-42 cm. 



Clay, silty Sharp color change with unit below. Not as 



brown as surface layers in other cores. 

 do Homogeneous over entire unit ; mottled with 



black carbonaceous matter throughout. 

 do Sharp color change with unit below; three 



color changes in this unit as indicated; 



lower layers brittle. 

 do Sharp color change with units above and be- 

 low; homogeneous. 

 do Sharp color change with units above and 



below ; moderately brittle. 

 do Sharp color change with units above and 



below; homogeneous. 

 do Sharp color change with units above and 



below; very brittle. 



do Homogeneous over entire unit. 



do Sharp color change with unit below; three 



color changes within unit; lower layer 



moderately brittle. 

 do Homogeneous over entire unit except for 



small brown fragment at 14-15 cm. 

 do Sharp color change with units above and 



below ; moderately brittle. 



do Homogeneous over entire unit. 



do Moderate color change with units above and 



below ; brittle lower layer. 



do Homogeneous over entire unit. 



do Moderate color change with units above and 



below. Moderately brittle. 



do Homogeneous over entire unit. 



Clay, silty. Slight color variation to 5YR4/4 at about 



sandy. 8 cm. 



Clay, silty, Sharp color change and textural change with 



sandy, gravel. unit above. Quite dry and brittle. 



Clay, silty. Moderate color change with unit below, 



sandy. Mottled with 5YR3/2. 



do Homogeneous over entire unit. 



Clay, silty Sharp color change with units above and 



below; moderately brittle. 



do Homogeneous over entire unit. 



do Sharp color change with units above and 



below; moderately brittle. 



30 



