10.1594/PANGAEA.877437Pittauer, DanielaDanielaPittauer0000-0002-3643-333XRoos, PerPerRoosElvert, MarcusMarcusElvert0000-0003-3863-0975PANGAEA2017Depth, top/minDepth, bottom/maxDEPTH, sediment/rockWater content, relativeDensity, dry bulkCumulative massPotassium-40UncertaintyThallium-208Lead-210 activity per massLead-212Lead-214 activity per massActinium-228Lead-210 excessThorium-228 excessCaesium-137Caesium-137, decision thresholdAmericium-241Americium-241 decision thresholdAmericium-241/Caesium-137 ratioPlutonium-239+240Plutonium-238Plutonium-238/(Plutonium-239+240) activity ratioPlutonium-240/Plutonium-239, atomic ratioFractionAgeAge, uncertaintyCarbon, organic, totalCarbon, organic, total, standard deviationδ13C, organic carbonδ13C, organic carbon, standard errorMultiCorerGamma-ray spectrometryAlpha spectrometryICP-MS2 member mixing modelCF-CS model (2 sections)SO228SonneCenter for Marine Environmental Sciences (MARUM)2013-05-14T00:00:00Dataset10.1594/PANGAEA.87743810.1016/j.jenvrad.2017.06.0211248 data pointstext/tab-separated-valuesCreative Commons Attribution 3.0 UnportedRadionuclide concentrations were studied in a sediment core GeoB17409-1 taken at the continental slope of the Philippine Sea off Mindanao Island in the equatorial Western Pacific. High resolution deposition records of anthropogenic radionuclides were collected at this site. Excess 210Pb together with excess 228Th and anthropogenic radionuclides provided information about accumulation rates. Concentrations of Am and Pu isotopes were detected by gamma spectrometry, alpha spectrometry and ICP-MS. The Pu ratios indicate a high portion (minimum of 60%) of Pu from the Pacific Proving Grounds (PPG). This implies that the transport of PPG derived plutonium with the Mindanao Current southward is similarly effective as the previously known transport towards the north with the Kuroshio Current. The record is compared to other studies from northwest Pacific marginal seas and Lombok basin in the Indonesian Archipelago.
The sediment core top was found to contain a 6 cm thick layer dominated by terrestrial organic matter, which was interpreted as a result of the 2012 Typhoon Pablo-related fast deposition.126.554666666677.8583333333333