Not logged in
PANGAEA.
Data Publisher for Earth & Environmental Science

Cronan, David S; Glasby, Geoffrey P; Moorby, S A; Thomson, J; Knedler, K E; McDougall, J C (1982): (Table 2, page 458), Isotopic data on manganese oxide crust U23-1 from the south-west Pacific island arc [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.847590, In supplement to: Cronan, DS et al. (1982): A submarine hydrothermal manganese deposit from the south-west Pacific island arc. Nature, 298(5873), 456-458, https://doi.org/10.1038/298456a0

Always quote citation above when using data! You can download the citation in several formats below.

RIS CitationBibTeX CitationShow MapGoogle Earth

Coverage:
Latitude: -26.935000 * Longitude: -177.620000
Date/Time Start: 1981-04-01T00:00:00 * Date/Time End: 1981-04-01T00:00:00
Minimum DISTANCE: 0.000 cm * Maximum DISTANCE: 2.700 cm
Event(s):
TANG1122-U23 * Latitude: -26.935000 * Longitude: -177.620000 * Date/Time: 1981-04-01T00:00:00 * Elevation: -1683.0 m * Location: Tonga-Kermadec ridge * Campaign: NZOI-1122 * Basis: Tangaroa (1960) * Method/Device: Dredge (DRG)
Comment:
From 1983 until 1989 NOAA-NCEI compiled the NOAA-MMS Marine Minerals Geochemical Database from journal articles, technical reports and unpublished sources from other institutions. At the time it was the most extended data compilation on ferromanganese deposits world wide. Initially published in a proprietary format incompatible with present day standards it was jointly decided by AWI and NOAA to transcribe this legacy data into PANGAEA. This transfer is augmented by a careful checking of the original sources when available and the encoding of ancillary information (sample description, method of analysis...) not present in the NOAA-MMS database.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Sample code/labelSample labelCronan, David S
2DISTANCEDistancecmCronan, David SGeocode
3Sample commentSample commentCronan, David S
4Depth commentDepth commCronan, David SMin [mm]
5Depth commentDepth commCronan, David SMax [mm]
6UraniumUmg/kgCronan, David SAlpha spectrometry
7Uranium, standard deviationU std dev±Cronan, David S
8ThoriumThmg/kgCronan, David SAlpha spectrometry
9Thorium, standard deviationTh std dev±Cronan, David S
10Uranium/Thorium ratioU/ThCronan, David SCalculated
11Uranium/Thorium ratio, standard deviationU/Th std dev±Cronan, David S
12Uranium-234/Uranium-238 activity ratio(234U/238U)Cronan, David SCalculated
13Uranium-234/Uranium-238 activity ratio, standard deviation(234U/238U) std dev±Cronan, David S
14Thorium-230/Uranium-232 ratio230Th/232UCronan, David SCalculated
15Thorium-230/Uranium-232 ratio, standard deviation230Th/232U std dev±Cronan, David S
16Uranium-234234Udpm/gCronan, David SAlpha spectrometry
17Uranium-234, standard deviation234U std dev±Cronan, David S
18Thorium-230230Thdpm/gCronan, David SAlpha spectrometry
19Thorium-230, standard deviation230Th std dev±Cronan, David S
20Thorium-230/Uranium-234 ratio230Th/234UCronan, David SCalculated
21Thorium-230/Uranium-234 ratio, standard deviation230Th/234U std dev±Cronan, David S
22Age, datedAge datedkaCronan, David SCalculatedfrom ingrowth of 230Th towards radioactive equilibrium with 234U, where initial 230Th is assumed to be zero
23Age, dated standard deviationAge dated std dev±Cronan, David S
Size:
150 data points

Download Data

Download dataset as tab-delimited text — use the following character encoding:

View dataset as HTML