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Table 2 Radiocarbon ages from core PC04 compared to previous age results from the Ryukyu Arc

From: X-ray fluorescence core scanning, magnetic signatures, and organic geochemistry analyses of Ryukyu Trench sediments: turbidites and hemipelagites

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
  1. aRyukyu Arc core