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Table 1 14C dates reported by Ota et al. (1983, 1986). Area and sampling points are shown in Fig. 2

From: Late Holocene uplift of the Izu Islands on the northern Zenisu Ridge off Central Japan

Area/sampling points Materials 14C age (years BP) Sample height (m)
Ohama Chthamalus sp. 2650 ± 80 2.3–2.7
Ohama Saccostrea echinata 2830 ± 90 2.3–2.7
Ohama Saccostrea echinata 670 ± 75 1.1
Ohama Saccostrea echinata 645 ± 80 0.9
Iritahama Tetraclitella chinensi 950 ± 90 1.45–2.15
Kakizaki Saccostrea echinata 1280 ± 75 1.6
Kakizaki Saccostrea echinata 1540 ± 65 1.6
Shikinejima 1 Tetraclitella chinensi 1980 ± 130 3.2–3.6
Shikinejima 1 Megabalanus rosa 1830 ± 130 3.0–3.1
Shikinejima 1 Tetraclitella chinensi 1350 ± 100 2.6
Shikinejima 1 Saccostrea kegaki 2540 ± 290 2.6
Shikinejima 2 Tetraclita japonica 1010 ± 300 4.2
Shikinejima 3 Tetraclitella chinensi 1530 ± 100 3.9–5.1