Vibracore 28V1, north coast

Uniform succession of vaguely-laminated to bioturbated, fine-to medium-grained, foraminiferal/algal/coral carbonate sand: massive appearing (no obvious sedimentary structures) owing to extensive bioturbation; light brownish gray (5YR6/1); moderately well sorted; minor pecten bivalves (Chlamys sp.); sand size clasts angular to subrounded; composed mainly of a mix of foraminifera (29.0%), calcareous algae (24.5%) and coral fragments (21.5%); common Halimeda (6.0%). Upward-fining succession of vaguely-laminated to bioturbated, fine-to medium-grained, algal/coral/foraminifera carbonate sand: massive appearing (no obvious sedimentary structures) owing to extensive bioturbation; olive to light olive gray (5Y4/1-6/1); moderate sorting; common, disarticulated and fragmented pecten bivalves (Chlamys sp.), commonly oriented concave down and subparallel to bedding; sand size clasts angular to rounded; composed mainly of a mix of calcareous algae (33.5%), coral fragments (28.0%) and foraminifera(17.5%); common Halimeda (5.0%) and carbonate rock fragments (7.0%).