Table 2 Radiocarbon ages from core PC04 compared to previous age results from the Ryukyu Arc
Core | Depth (cm) | Conventional radiocarbon age | Water depth (m) | Material/sediment type | Reference |
|---|---|---|---|---|---|
KR1518-PC04 | 7.0–11.5 | 25980 ± 100 | 6147 | Bulk/turbidite | This study |
29.0–31.0 | 26710 ± 110 | Bulk/hemipelagite | |||
72.0–74.0 | 20500 ± 70 | Bulk/hemipelagite | |||
106.0–108.0 | 18600 ± 60 | Bulk/hemipelagite | |||
145.0–147.0 | 21990 ± 80 | Bulk/hemipelagite | |||
194.0–196.0 | 17680 ± 60 | Bulk/hemipelagite | |||
242.0–244.0 | 21940 ± 80 | Bulk/hemipelagite | |||
292.0–294.0 | 24860 ± 100 | Bulk/hemipelagite | |||
RN93-PC11a | 16.0–18.0 | 1410 ± 70 | 2540 | Foraminifera | Ujiié and Ujiié (1999) |
156.0–158.0 | 13280 ± 110 | Foraminifera | |||
RN93-PC12a | 28.0–30.0 | 3360 ± 80 | 2160 | Foraminifera | Ujiié and Ujiié (1999) |
136.0–138.0 | 13420 ± 110 | Foraminifera | |||
GH08-2004a | 19.3–21.4 | 3530 ± 40 | 1166 | Foraminifera | Kubota et al. (2015) |
23.6–25.7 | 4540 ± 170 | Foraminifera | |||
40.5–42.7 | 6450 ± 40 | Foraminifera | |||
43.0 | 7300 | Ash | |||
67.3–69.5 | 8265 ± 100 | Foraminifera | |||
80.7–82.9 | 9320 ± 40 | Foraminifera | |||
127.6–129.8 | 11660 ± 50 | Foraminifera | |||
134.3–136.0 | 12265 ± 110 | Foraminifera | |||
142.9–145.2 | 12940 ± 70 | Foraminifera | |||
172.8–175.1 | 14955 ± 115 | Foraminifera | |||
225.6–227.9 | 18780 ± 100 | Foraminifera |