Vibracore 1V1, Kailua Bay

Upward-fining, brownish-gray (5YR4/1), silty, very fine-grained carbonate sand layer (6-8) cm thick; vague lamination to burrowed?; burrowed lower contact.

Variable upward-coarsening and fining, burrowed to bioturbated, medium- to coarse- and very coarse-grained, coraline algal-rich carbonate sand; massive appearing owing to extensive bioturbation; variable color from light olive gray (5Y8/1) in lower part to grayish orange (10YR7/4) in upper meter; fair to moderate sorting; clasts subrounded to rounded; sand composed mainly of calcareous algal fragments (51.0-55.0%) and coral fragments (16.0-17.0%), with common carbonate rock fragment grains (8.5-13.5%) and Halimeda fragments (12.5-16.5%).

Irregular, bioturbated, very fine- to fine-grained, carbonate sand; yellowish to light greenish gray (5Y-GY8/1); fair to moderate sorting; clasts angular to subangular; sand composition mix of fragments of Halimeda (27.5%), coral (20.5%), calcareous algae (17.5%) and benthic foraminifers (9.5%); minor calcareous sponge spicules (4.5%); relatively abundant unidentifiable grains owing to fine grain size.

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Vibracore 2V1, Kailua Bay

Uniform succession of bioturbated, very fine- to fine-grained, carbonate sand; massive appearing (no obvious sedimentary structures) owing to extensive bioturbation; yellowish gray (5Y8/1); fair to moderate sorting with scattered, coarse-grained skeletal fragments (2-5%); all sand size clasts angular to subangular; sand fraction composed of a mix of Halimeda (27.5-28.0%), coral fragments (15.5-19.0%), benthic foraminifera (12.5%) and calcareous algae (8.5-9.0%) with common calcareous sponge spicules (5.0-7.5%); minor volcanic rock fragments (2.0%) also abundant unidentifiable skeletal clasts (18.0-25.5%) owing to the very fine grain size.

Vibracore 3V1, Kailua Bay

Uniform burrowed to bioturbated, very fine- to fine-grained, Halimeda-bearing carbonate sand; massive appearing owing probably to extensive bioturbation; yellowish gray (5Y8/1); poor to fair sorting; clasts angular to subrounded; sand composed mainly of mix of Halimeda (30.0-36.0%, coral fragments (15.5-17.5%), calcareous algal fragments (10.5-12.0%) and benthic foraminifera (4.0-14.0%),with abundant unidentifiable clasts (12.5-14.5%) owing to fine grain size, and common carbonate rock fragment grains (2.5-12.0%); also minor mollusks (3.0-3.5%), echinoderm fragments (2.0-3.5%), calcareous sponge spicules (2.0-2.5%) and altered volcanic rock fragment grains (0.5-2.5%). A relatively sharp to burrow-mottled contact. Uniform burrowed to bioturbated, very fine- to coarse-grained, carbonate sand; massive appearing owing probably to extensive bioturbation; light olive to yellowish gray (5Y6/1-8/1); very poor sorting; clasts angular to subangular; sand composed mainly of mix of coral fragments (20.5-27.5%), Halimeda (15.5-26.0%), calcareous algal fragments (18.5-20.0%) and benthic foraminifera (12.0-16.5%),with common carbonate rock fragment grains (7.5-13.0%); minor unidentifiable clasts (3.5-5.0%) mollusks (1.5-7.0%) and echinoderm fragments (2.0-2.5%).

Vibracore 4V1, Kailua Bay

Uniform succession of bioturbated, muddy, very fine- to fine-grained, carbonate sand: massive appearing (no obvious sedimentary structures) owing to extensive bioturbation; yellowish to light greenish gray (5Y-GY8/1); poor to fair sorting with abundant mud (25 to 45+%); all sand clasts angular to subangular; sand fraction composed of a mix of Halimeda (18.5-23.5%), benthic foraminifera (17.0-19.5%), calcareous algae (11.0%) and coral fragments (9.0-9.5%), with common carbonate rock fragments (2.0-7.5%); and calcareous sponge spicules (4.5-5.0%); also abundant unidentifiable skeletal clasts (22.0-32.0%) owing to very fine grain size.

Vibracore 5V1, Kailua Bay

Uniform to subtly upward-coarsening burrowed to bioturbated, fine- to medium and coarse-grained, volcanic rock fragment-bearing carbonate sand; massive appearing owing probably to extensive bioturbation; local mud-filled burrow structures; light olive gray (5Y8/1); fair to moderate sorting; clasts angular to subrounded and rounded; sand composed mainly of mix of coral fragments (17.5-23.0%), calcareous algal fragments (17.5-21.0%), benthonic foraminifera (13.5-24%) and Halimeda (12.5-16.5%), with notable abundance of highly altered volcanic rock fragment grains (8.5-14.5%) and common carbonate rock fragment grains (7.0-8.5%).

Vibracore 6V1, Kailua Bay

Uniform to subtly 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 (5-12.0%) and sandy (very fine- to fine-grained) "matrix"; elongate Halimedaflakes 0.5-1.0 cm long; clasts angular to subangular; sand and fine gravel fractions dominantly Halimeda (39.0-66.0%) with abundant foraminifera (27.5-36.0%) and common calcareous algae (6.0-10.0%) and coral fragments (3.0-7.0).

Vibracore 7V1, Kailua Bay

Uniform to subtly 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 (66.5-81.0%) common foraminifera (11.5-15.0%) very minor calcareous algae (1.0-3.0%).

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%).

Vibracore 9V1, Kailua Bay

Uniform succession of bioturbated, muddy, very fine- to fine-grained, Halimeda/carbonate sand: massive appearing (no obvious sedimentary structures) owing probably to extensive bioturbation; yellowish to light olive gray (5Y-8/1-6/1); poor to fair sorting with abundant mud (20 to 40+%) and 5-10% scattered skeletal fragments in the coarse to very coarse sand size; all sand size clasts angular to subangular; sand fraction dominantly Halimeda (29.0-43.5%) and foraminifera (17.5-24.0%), with common calcareous algae (7.0-8.5%) and coral fragments (6.5-7.0%) and minor echinoid fragments (2.5-3.5%) and calcareous sponge spicules (3.0-20.5%); abundant unidentifiable skeletal clasts (14.5-20.5%); owing to the very fine grain size (many probably coral fragments).

Vibracore 10V1, 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 (20 to 25%) and 2-5% scattered skeletal fragments in the coarse to very coarse sand size; sand size clasts angular to subangular; sand fraction dominantly Halimeda (37.0-42.5%) and foraminifera (24.0-27.5%), with only minor calcareous algae (2.0-3.5%), coral fragments (0-1.0%), echinoid fragments (1.5-3.0%) and calcareous sponge spicules (1.0-3.5%); abundant unidentifiable skeletal clasts (19.0-24.0%); owing to the very fine grain size (most probably coral fragments).

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).

Vibracore 12V1, Kailua Bay

Uniform to upward coarsening 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 sorting with abundant mud (12 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 (26.5-29.0%), foraminifera (15.5-16.5%) and calcareous algae (13.5-17.0%) and minor coral fragments (1.5-5.0%), echinoid fragments (1.5-4.5%) and calcareous sponge spicules (2.5-3.5%); abundant unidentifiable skeletal clasts (24.0-25.5%); owing to the very fine grain size (most probably coral fragments).

Vibracore 13V3, Kailua Bay

Upper 5 cm very fine- to fine-grained carbonate sand.

Subtly upward-fining succession of bioturbated, muddy, very fine- to fine-grained, skeletal carbonate sand: vague lamination to massive appearing in lower portion; extensive bioturbation in upper part; yellowish to olive gray (5Y-8/1-4/1); poor sorting with abundant mud (11 to 20%) and 5-10% scattered Halimeda fragments in the coarse to very coarse sand size; all sand size clasts angular to subangular; sand fraction mix of Halimeda (21.0-24.0%), foraminifera (14.5-16.5%), calcareous algae (11.5-16.0%), coral fragments (10.0-20.0%), minor echinoid fragments (3.0-3.5%) and mollusks (0.5-5.0%); abundant unidentifiable skeletal clasts (16.0-22.5%); owing to the very fine grain size (most probably coral fragments).