/* DATA DESCRIPTION: Citation: Southon, John N; Mohtadi, Mahyar; De Pol-Holz, Ricardo (2013): (Table 1) Radiocarbon results from this study. PANGAEA, https://doi.org/10.1594/PANGAEA.823588, Supplement to: Southon, JN et al. (2013): Planktic foram dates from the Indonesian Arc: Marine 14C reservoir ages and a mythical AD 535 volcanic eruption. Radiocarbon, 55(2-3), 1164-1172, https://doi.org/10.2458/azu_js_rc.55.16384 Abstract: The Indonesian Arc represents the subduction of the Indian-Australian plate beneath Asia. It has been the scene of catastrophic tectonic activity, including the recent 2004 M=9.1 Aceh earthquake and resulting Indian Ocean tsunami. We have dated planktonic forams associated with historic tephras (Tambora, 1815 and Krakatau, 1883) in marine sediment cores to determine radiocarbon reservoir ages for 2 locations along the arc. Our best estimates for 19th century regional reservoir corrections (DeltaR) are +90 ± 40 yr for surface-dwelling species and +220 ± 40 yr for mixed planktic assemblages containing some upper thermocline species, but scatter in the data suggests that past surface reservoir ages may have varied by about ±100 yr. We used the results of this study to investigate a proposed very large AD 535 eruption at or near Krakatau. We find no evidence for ash from such an eruption, and although this is negative evidence, we consider it sufficiently strong to rule out any possibility that one took place. Project(s): Center for Marine Environmental Sciences (MARUM) (URI: https://www.marum.de/en/) Coverage: MEDIAN LATITUDE: -7.882113 * MEDIAN LONGITUDE: 109.531557 * SOUTH-BOUND LATITUDE: -9.223670 * WEST-BOUND LONGITUDE: 104.642500 * NORTH-BOUND LATITUDE: -7.113500 * EAST-BOUND LONGITUDE: 118.893500 DATE/TIME START: 2005-08-19T04:41:00 * DATE/TIME END: 2005-09-05T05:11:00 MINIMUM DEPTH, sediment/rock: 0.03 m * MAXIMUM DEPTH, sediment/rock: 0.48 m Event(s): GeoB10042-1 * LATITUDE: -7.113500 * LONGITUDE: 104.642500 * DATE/TIME: 2005-08-19T04:41:00 * ELEVATION: -2460.0 m * CAMPAIGN: SO184/1 (PABESIA) (URI: urn:nbn:de:gbv:46-ep000100431) * BASIS: Sonne (URI: https://en.wikipedia.org/wiki/RV_Sonne) * METHOD/DEVICE: Gravity corer (Kiel type) (SL) GeoB10043-3 * LATITUDE: -7.309170 * LONGITUDE: 105.058670 * DATE/TIME: 2005-08-19T14:04:00 * ELEVATION: -2172.0 m * CAMPAIGN: SO184/1 (PABESIA) (URI: urn:nbn:de:gbv:46-ep000100431) * BASIS: Sonne (URI: https://en.wikipedia.org/wiki/RV_Sonne) * METHOD/DEVICE: Gravity corer (Kiel type) (SL) GeoB10065-7 * LATITUDE: -9.223670 * LONGITUDE: 118.893500 * DATE/TIME: 2005-09-05T05:11:00 * ELEVATION: -1292.0 m * Recovery: 9.85 m * CAMPAIGN: SO184/2 (PABESIA) (URI: urn:nbn:de:gbv:46-ep000100431) * BASIS: Sonne (URI: https://en.wikipedia.org/wiki/RV_Sonne) * METHOD/DEVICE: Gravity corer (Kiel type) (SL) Comment: a: Mixed pl. = mixed planktics (residuals after Ruber and Sacculifer picked - see text); b: Size in mg of carbon; c: Assumed calendarage ranges for 1-cm layers centered on the depths shown (see text). Parameter(s): Event label (Event) DEPTH, sediment/rock [m] (Depth sed) * GEOCODE Sample code/label (Sample label) * PI: Southon, John N * COMMENT: UCAMS (AMS Laboratory, University of California, Irvine) Age, dated material (Dated material) * PI: Southon, John N * COMMENT: Species, a Mass [mg] (Mass) * PI: Southon, John N * COMMENT: b Age, dated [ka] (Age dated) * PI: Southon, John N * METHOD/DEVICE: Age, 14C AMS (URI: https://doi.org/10.1146/annurev.ns.30.120180.002253) Age, dated standard deviation [±] (Age dated std dev) * PI: Southon, John N Age [a AD/CE] (Age) * PI: Southon, John N * COMMENT: Calendar age, c Age, standard deviation [±] (Age std dev) * PI: Southon, John N Reservoir effect/correction [a] (Res effect) * PI: Southon, John N * COMMENT: Model R Reservoir effect/correction, standard deviation [±] (Res effect std dev) * PI: Southon, John N Reservoir effect/correction [a] (Res effect) * PI: Southon, John N * METHOD/DEVICE: Calculated * COMMENT: Regional reservoir corrections (DeltaR) Reservoir effect/correction, standard deviation [±] (Res effect std dev) * PI: Southon, John N Comment (Comment) * PI: Southon, John N License: Creative Commons Attribution 3.0 Unported (CC-BY-3.0) (URI: https://creativecommons.org/licenses/by/3.0/) Size: 280 data points */ Event Depth sed [m] Sample label (UCAMS (AMS Laboratory, Univer...) Dated material (Species, a) Mass [mg] (b) Age dated [ka] (Age, 14C AMS) Age dated std dev [±] Age [a AD/CE] (Calendar age, c) Age std dev [±] Res effect [a] (Model R) Res effect std dev [±] Res effect [a] (Regional reservoir correction...) Res effect std dev [±] Comment GeoB10042-1 0.03 98273 Mixed pl. 0.054 0.105 0.025 Bomb 14C GeoB10042-1 0.06 89144 Ruber+sacc. 0.083 0.515 0.020 1905 20 460 25 55 35 GeoB10042-1 0.06 Ash 6-8 cm (Krakatau, 1883) GeoB10042-1 0.08 89145 Ruber+sacc. 0.130 3.895 0.020 Missing core GeoB10042-1 0.08 98274 Mixed pl. 0.100 4.170 0.020 GeoB10042-1 0.13 98275 Mixed pl. 0.290 4.360 0.015 GeoB10042-1 0.13 98276 Sacculifer 0.069 4.225 0.040 GeoB10042-1 0.18 98277 Mixed pl. 0.420 4.500 0.015 GeoB10042-1 0.18 98279 Sacculifer 0.054 4.440 0.050 GeoB10042-1 0.23 98280 Mixed pl. 0.790 4.580 0.015 GeoB10042-1 0.23 98281 Sacculifer 0.033 4.580 0.090 GeoB10042-1 0.28 98282 Mixed pl. 0.150 4.815 0.020 GeoB10042-1 0.33 98283 Mixed pl. 0.360 4.865 0.015 GeoB10042-1 0.33 98284 Sacculifer 0.058 4.675 0.045 GeoB10042-1 0.33 98286 Ruber 0.027 4.820 0.100 GeoB10042-1 0.38 98287 Mixed pl. 0.580 4.975 0.020 GeoB10042-1 0.38 98288 Sacculifer 0.260 4.885 0.020 GeoB10042-1 0.38 98289 Ruber 0.046 4.930 0.060 GeoB10042-1 0.43 98290 Mixed pl. 0.480 5.045 0.020 GeoB10042-1 0.43 98291 Sacculifer 0.110 5.015 0.025 GeoB10043-3 0.13 89142 Ruber+sacc. 0.033 0.545 0.035 1895 10 460 25 85 45 GeoB10043-3 0.13 98497 Mixed pl. 0.120 0.705 0.015 1895 10 460 25 245 30 GeoB10043-3 0.13 Ash 13-18 cm (Krakatau, 1883) GeoB10043-3 0.18 89143 Ruber+sacc. 0.040 0.640 0.035 1835 50 505 45 135 60 GeoB10043-3 0.18 98498 Mixed pl. 0.780 0.925 0.015 1835 50 505 45 420 45 GeoB10043-3 0.18 98499 Sacculifer 0.150 0.800 0.020 1835 50 505 45 295 50 GeoB10043-3 0.18 98500 Ruber 0.015 0.940 0.080 1835 50 505 45 435 85 GeoB10043-3 0.23 98501 Mixed pl. 0.560 1.410 0.015 GeoB10043-3 0.23 98502 Sacculifer 0.092 1.150 0.025 GeoB10043-3 0.28 98505 Mixed pl. 0.440 1.820 0.015 GeoB10043-3 0.28 98506 Ruber 0.065 1.570 0.025 GeoB10043-3 0.33 98507 Mixed pl. 0.460 2.130 0.015 GeoB10043-3 0.33 98508 Sacculifer 0.058 2.070 0.025 GeoB10043-3 0.38 98509 Mixed pl. 0.640 2.430 0.020 GeoB10043-3 0.38 98510 Sacculifer 0.230 2.240 0.015 GeoB10043-3 0.38 98511 Ruber 0.017 2.380 0.080 GeoB10043-3 0.43 98517 Mixed pl. 0.520 2.700 0.015 GeoB10043-3 0.43 98518 Sacculifer 0.060 2.525 0.030 GeoB10043-3 0.48 98519 Mixed pl. 0.430 2.845 0.020 GeoB10043-3 0.48 98520 Sacculifer 0.048 2.760 0.030 GeoB10065-7 0.36 89139 Ruber+sacc. 0.150 0.630 0.020 1835 20 500 30 130 35 GeoB10065-7 0.37 Ash 37-40 cm (Tambora, 1815) GeoB10065-7 0.39 89140 Ruber+sacc. 0.038 0.745 0.035 1815 520 25 225 45 In ash GeoB10065-7 0.40 89141 Ruber+sacc. 0.160 1.500 0.020 1810 5 525 25 Reworked GeoB10065-7 0.41 84721 Mixed pl. 0.460 0.755 0.020 1805 5 535 25 220 30