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Niemann, S; Geibert, Walter (2003): Uranium, protactinium and thorium radionuclide activities in surface sediments of the continental slope of the Argentine basin. PANGAEA,

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This is a set of bulk sediment analyses of 230Th, 232Th, 231Pa as well as uranium isotopes in surface sediments from the continental slope of the Argentine basin. Samples were subject to full digestion, and radioisotope data were determined using isotope dilution after ion chromatographic separation, electroplating and counting via alphaspectrometry (233Pa yield tracer: beta-counting) by Steffen Niemann as part of his diploma thesis in 2003 (supervision FU Berlin- Prof. Heubeck/ AWI Bremerhaven-Dr. Walter Geibert and Prof. Michael Schlüter).
Related to:
Niemann, S (2003): 231Pa ex and 230Th ex at the southeast South American continental margin - Is the 231Pa ex / 230Th ex ratio a proxy for particle flux or ocean circulation? Diploma Thesis, Fachbereich Geowissenschaften, Freie Universität Berlin
Median Latitude: -39.149680 * Median Longitude: -52.659689 * South-bound Latitude: -48.911667 * West-bound Longitude: -60.091667 * North-bound Latitude: -29.086800 * East-bound Longitude: -39.071667
Date/Time Start: 1994-06-21T00:00:00 * Date/Time End: 2000-05-17T08:04:00
Minimum DEPTH, sediment/rock: 0.0025 m * Maximum DEPTH, sediment/rock: 0.0050 m
GeoB2706-6 * Latitude: -42.368333 * Longitude: -55.535000 * Date/Time: 1994-06-21T00:00:00 * Elevation: -4700.0 m * Recovery: 0.2 m * Location: Slope off Argentina * Campaign: M29/1 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC) * Comment: 6 large, 3 small tubes
GeoB2707-4 * Latitude: -41.945000 * Longitude: -56.323333 * Date/Time: 1994-06-22T00:00:00 * Elevation: -3167.0 m * Recovery: 0.15 m * Location: Slope off Argentina * Campaign: M29/1 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC) * Comment: 5 large, 4 small tubes
GeoB2708-5 * Latitude: -41.418333 * Longitude: -57.300000 * Date/Time: 1994-06-23T00:00:00 * Elevation: -392.0 m * Recovery: 0.15 m * Location: Slope off Argentina * Campaign: M29/1 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC) * Comment: 4 large, 3 small tubes
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEvent
2Latitude of eventLatitude
3Longitude of eventLongitude
4Elevation of eventElevationm
5DEPTH, sediment/rockDepth sedmGeocode
6Depth, top/minDepth topmGeibert, Walter
7Depth, bottom/maxDepth botmGeibert, Walter
8Uranium-238238Udpm/gGeibert, WalterAlpha spectrometry
9Uranium-238, standard deviation238U std dev±Geibert, WalterAlpha spectrometry
10Uranium-234234Udpm/gGeibert, WalterAlpha spectrometry
11Uranium-234, standard deviation234U std dev±Geibert, WalterAlpha spectrometry
12Protactinium-231231Padpm/gGeibert, WalterAlpha spectrometry
13Protactinium-231, standard deviation231Pa std dev±Geibert, WalterAlpha spectrometry
14Thorium-232232Thdpm/gGeibert, WalterAlpha spectrometry
15Thorium-232, standard deviation232Th std dev±Geibert, WalterAlpha spectrometry
16Thorium-230230Thdpm/gGeibert, WalterAlpha spectrometry
17Thorium-230, standard deviation230Th std dev±Geibert, WalterAlpha spectrometry
18Thorium-228228Thdpm/gGeibert, WalterAlpha spectrometry
19Thorium-228, standard deviation228Th std dev±Geibert, WalterAlpha spectrometry
20Protactinium-231 excess231Pa xsdpm/gGeibert, WalterCalculated
21Protactinium-231 excess, standard deviation231Pa xs std dev±Geibert, WalterCalculated
22Thorium-230 excess230Th xsdpm/gGeibert, WalterCalculated
23Thorium-230 excess, standard deviation230Th xs std dev±Geibert, WalterCalculated
24Protactinium-231/Thorium-230 excess231Pa/230Th xsGeibert, WalterCalculated
25Protactinium-231/Thorium-230 excess, standard deviation231Pa/230Th xs std dev±Geibert, WalterCalculated
26Uranium-234/Thorium-232 activity ratio(234U/232Th)Geibert, WalterCalculated
27Uranium-234/Thorium-232 activity ratio, standard deviation(234U/232Th) std dev±Geibert, WalterCalculated
28Uranium-234/Uranium-238 activity ratio(234U/238U)Geibert, WalterCalculated
29Uranium-234/Uranium-238 activity ratio, standard deviation(234U/238U) std dev±Geibert, WalterCalculated
30Uranium-238, authigenic238U authdpm/gGeibert, WalterCalculated
31Uranium-238, authigenic, standard deviation238U auth std dev±Geibert, WalterCalculated
930 data points

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