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Southon, John N; Mohtadi, Mahyar; De Pol-Holz, Ricardo (2013): (Table 1) Radiocarbon results from this study. PANGAEA,, 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,

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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.
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
GeoB10042-1 * Latitude: -7.113500 * Longitude: 104.642500 * Date/Time: 2005-08-19T04:41:00 * Elevation: -2460.0 m * Campaign: SO184/1 (PABESIA) * Basis: 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) * Basis: 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) * Basis: Sonne * Method/Device: Gravity corer (Kiel type) (SL)
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).
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEvent
2DEPTH, sediment/rockDepth sedmGeocode
3Sample code/labelSample labelSouthon, John NUCAMS (AMS Laboratory, University of California, Irvine)
4Age, dated materialDated materialSouthon, John NSpecies, a
5MassMassmgSouthon, John Nb
6Age, datedAge datedkaSouthon, John NAge, 14C AMS
7Age, dated standard deviationAge dated std dev±Southon, John N
8AgeAgea AD/CESouthon, John NCalendar age, c
9Age, standard deviationAge std dev±Southon, John N
10Reservoir effect/correctionRes effectaSouthon, John NModel R
11Reservoir effect/correction, standard deviationRes effect std dev±Southon, John N
12Reservoir effect/correctionRes effectaSouthon, John NCalculatedRegional reservoir corrections (DeltaR)
13Reservoir effect/correction, standard deviationRes effect std dev±Southon, John N
14CommentCommentSouthon, John N
280 data points

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