. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 10 Table 2 Radiocarbon ages of in situ corals in coastal deposits in Tonaki Island (see also Fig. 5). Loc. Radiocarbon Age Material Labo. No. Explanation for Sampling Site Elevation of No. * ( ± la) (Coral Genus) specimen (m) T(l/2)=5568yrs above MSL 1 5150 ±100 Pontes GaK-15825 reef flat 2 4410 ± 80 Goniastrea GaK-15826 reef overlain by beach conglomerate 3 4790 ±140 Goniastrea GaK-15827 reef in front of beach conglomerate 4 4430 ±110 Pontes GaK-15 828 reef overlain by beach conglomerate
. Atoll research bulletin. Coral reefs and islands; Marine biology; Marine sciences. 10 Table 2 Radiocarbon ages of in situ corals in coastal deposits in Tonaki Island (see also Fig. 5). Loc. Radiocarbon Age Material Labo. No. Explanation for Sampling Site Elevation of No. * ( ± la) (Coral Genus) specimen (m) T(l/2)=5568yrs above MSL 1 5150 ±100 Pontes GaK-15825 reef flat 2 4410 ± 80 Goniastrea GaK-15826 reef overlain by beach conglomerate 3 4790 ±140 Goniastrea GaK-15827 reef in front of beach conglomerate 4 4430 ±110 Pontes GaK-15 828 reef overlain by beach conglomerate 5 4980 ± 90 Goniastrea GaK-15829 do. 6 3640 ±190 Pontes GaK-15830 do. 7 4130 ± 80 Pontes GaK-15831 do. 8 4820 ±130 Goniastrea GaK-15832 inner edge of the reef flat 9 4890 ±100 Pontes GaK-15835 reef in front of beach conglomerate * Location numbers are in Fig. 2B. f The higher elevations of the specimens at Loc. 6 and are probably due to strong wave- affected coast. ca. ~ above mean sea level (marine notch). MHWL MSL 4820 ± 130 5150 ± 100 i MLWL 3640 ± 190 4130 ± 80 4410 ± 80 4430 ± 110 4890 ± 90 Figure 5. Schematic profile of Holocene reef, beach conglomerate and marine notch at the landward end of Tonaki Reef. Radiocarbon ages of corals indicate years BP (see also Table 2). MHWL: mean high water level, MLWL: mean low water Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Smithsonian Institution. Press; National Research Council (U. S. ). Pacific Science Board; Smithsonian Institution; National Museum of Natural History (U. S. ); United States. Bureau of Sport Fisheries and Wildlife. Washington, D. C. : [Smithsonian Press]
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