Vibracore 8V1, Kailua Bay

Upward-coarsening successions of burrowed to bioturbated, muddy and sandy, Halimeda gravel: massive appearing owing probably to extensive bioturbation; local mud-filled burrow structures; yellowish to light greenish gray (5Y-GY8/1); poor to fair sorting with muddy (10.0%) and sandy (very fine- to fine-grained) "matrix"; elongate Halimeda flakes 0.5-1.0 cm long; clasts angular to subangular; sand and fine gravel fractions dominantly Halimeda (70.5-83.5%) minor constituents include foraminifera (5.5-11.5%) calcareous algae (3.5-7.0%) and mollusks (2.5-3.5%).