Vibracore 11V1, Kailua Bay

Uniform succession of bioturbated, muddy, very fine- to fine-grained, Halimeda/foraminifera carbonate sand: massive appearing (no obvious sedimentary structures) owing probably to extensive bioturbation; yellowish to light olive gray (5Y-8/1-6/1) and light greenish gray (5GY8/1); very poor to fair sorting with abundant mud (8 to 15%) and 2-5% scattered skeletal fragments in the coarse to very coarse sand size; sand size clasts angular to subangular; sand fraction dominantly Halimeda (26.5-28.5%) and foraminifera (19.5-20.0%), with common calcareous algae (9.0-9.5%) and minor coral fragments (0-3.0%), echinoid fragments (2.0-3.5%) and calcareous sponge spicules (2.0-5.0%); abundant unidentifiable skeletal clasts (27.0-28.5%); owing to the very fine grain size (most probably coral fragments).