The sedimentary cover was recovered only at Site SEG02. Unit S-1 is a highly compacted diamicton. Despite the inherently difficult coring conditions in this material, recovery by the diamond coring technique was close to 100%. The lower boundary of Unit S-1 is sharp against the brecciated basalt of Unit I-1. Unit S-1 is composed of rounded to subangular clasts of basalt, gabbro, granite, and quartzite, ranging in size from 2 mm to >10 cm and fully supported by a clay matrix. No size grading of clasts was observed. Clast type is also independent of stratigraphic height, but clasts >3 cm are dominated by aphyric to sparsely phyric vesicular basalt. This sedimentary unit is interpreted as glaciomarine.