Citation:

PANGAEA.126286

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Abstract:

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

Project(s):

Marine Geochemistry @ AWI (AWI_MarGeoChem)

Paleoenvironmental Reconstructions from Marine Sediments @ AWI (AWI_Paleo)

Coverage:

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

Event(s):

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: * Basis: * 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: * Basis: * 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: * Basis: * Method/Device: MultiCorer (MUC) * Comment: 4 large, 3 small tubes

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Latitude of event	Latitude
3	Longitude of event	Longitude
4	Elevation of event	Elevation	m
5	DEPTH, sediment/rock	Depth sed	m			Geocode
6	Depth, top/min	Depth top	m	Geibert, Walter
7	Depth, bottom/max	Depth bot	m	Geibert, Walter
8	Uranium-238	238U	dpm/g	Geibert, Walter	Alpha spectrometry
9	Uranium-238, standard deviation	238U std dev	±	Geibert, Walter	Alpha spectrometry
10	Uranium-234	234U	dpm/g	Geibert, Walter	Alpha spectrometry
11	Uranium-234, standard deviation	234U std dev	±	Geibert, Walter	Alpha spectrometry
12	Protactinium-231	231Pa	dpm/g	Geibert, Walter	Alpha spectrometry
13	Protactinium-231, standard deviation	231Pa std dev	±	Geibert, Walter	Alpha spectrometry
14	Thorium-232	232Th	dpm/g	Geibert, Walter	Alpha spectrometry
15	Thorium-232, standard deviation	232Th std dev	±	Geibert, Walter	Alpha spectrometry
16	Thorium-230	230Th	dpm/g	Geibert, Walter	Alpha spectrometry
17	Thorium-230, standard deviation	230Th std dev	±	Geibert, Walter	Alpha spectrometry
18	Thorium-228	228Th	dpm/g	Geibert, Walter	Alpha spectrometry
19	Thorium-228, standard deviation	228Th std dev	±	Geibert, Walter	Alpha spectrometry
20	Protactinium-231 excess	231Pa xs	dpm/g	Geibert, Walter	Calculated
21	Protactinium-231 excess, standard deviation	231Pa xs std dev	±	Geibert, Walter	Calculated
22	Thorium-230 excess	230Th xs	dpm/g	Geibert, Walter	Calculated
23	Thorium-230 excess, standard deviation	230Th xs std dev	±	Geibert, Walter	Calculated
24	Protactinium-231/Thorium-230 excess	231Pa/230Th xs		Geibert, Walter	Calculated
25	Protactinium-231/Thorium-230 excess, standard deviation	231Pa/230Th xs std dev	±	Geibert, Walter	Calculated
26	Uranium-234/Thorium-232 activity ratio	(234U/232Th)		Geibert, Walter	Calculated
27	Uranium-234/Thorium-232 activity ratio, standard deviation	(234U/232Th) std dev	±	Geibert, Walter	Calculated
28	Uranium-234/Uranium-238 activity ratio	(234U/238U)		Geibert, Walter	Calculated
29	Uranium-234/Uranium-238 activity ratio, standard deviation	(234U/238U) std dev	±	Geibert, Walter	Calculated
30	Uranium-238, authigenic	238U auth	dpm/g	Geibert, Walter	Calculated
31	Uranium-238, authigenic, standard deviation	238U auth std dev	±	Geibert, Walter	Calculated

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

930 data points

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