Section 4, Measuring up from between conc zone unit (2) of section 3 (1) 4.0 Dark grey lumpy silty clay + clazy silt, mottled with OB and yellow brown - as in unit 1 of section 3. (2) 3.0 Shzle, grey silty becoming Silty + sandy at top and grading into unit 3. (3) 7.0 Gray silty clay with pockets + blebs of silt and fine sand Blotches Fe OB and some yellow stain (4) 0.5+ "Upper conc. layer." Maroon jzckets, dense blue gray ls conc. with yellow calcite filling, sparsely fossiliferous Nucula and Solen? commonest, 27