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  • Data  (3)
  • 2020-2024  (3)
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  • Data  (3)
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  • 1
    facet.materialart.
    Unknown
    Chemical composition of metalliferous sediments of DOMES Sites A, B and C in the Central Pacific Ocean (2022)
    PANGAEA
    Details
    Publication Date: 2023-08-28
    Description: 59 samples of metalliferous sediments taken from 17 box cores retrieved from DOMES Sites A, B and C have been analysed. Samples, including pore water salts, were dried at 1100C. The major elements Si, Al, Fe, Mg, Ca, Na, K, Ti, and P were analyzed by X-ray fluorescence spectroscopy after fusion with lithium tetraborate. Concentrations were determined by comparison with appropriate sediment and rock standards and were computer corrected for matrix effects. Ni and Cu were analyzed by atomic-absorption spectroscopy after complete sample dissolution, with estimated precisions of better than 3 percent (1 sigma). The remaining elements were analyzed by optical emission spectroscopy standardized against appropriate sediment and rock standards. Precision is estimated to be on the order of 20% (1 sigma).
    Keywords: Aluminium oxide; Atomic absorption spectroscopy; Barium; BC; Beryllium; Boron; Box corer; Calcium oxide; Chromium; Cobalt; Copper; DEPTH, sediment/rock; DOMES Site A, Pacific Ocean; DOMES Site B, Pacific Ocean; DOMES Site C, Pacific Ocean; Elevation of event; Event label; Geochemistry; Identification; Iron oxide, Fe2O3; Latitude of event; Lead; Longitude of event; Magnesium oxide; manganese micronodule; manganese nodule; Manganese oxide; Molybdenum; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Oceanographer; Phosphorus pentoxide; Potassium oxide; Quantum emission spectrography; RP-8-OC-75; RP8OC7503; RP8OC75-46-01; RP8OC75-47-10; RP8OC75-48-19; RP8OC75-49-25; RP8OC75-50-28; RP8OC75-50-32; RP8OC75-52-42; RP8OC75-53-45; RP8OC75-54-51; RP8OC75-55-53; RP8OC76; RP-8-OC-76; RP8OC76-10-15; RP8OC76-11-16; RP8OC76-12-18; RP8OC76-14-20; RP8OC76-15-21; RP8OC76-16-22; RP8OC76-18-24; RP8OC76-2-7; RP8OC76-3-8; RP8OC76-4-9; RP8OC76-5-10; Scandium; sediment; Silicon dioxide; Sodium oxide; Strontium; Titanium dioxide; X-ray fluorescence (XRF); Zinc
    Type: Dataset
    Format: text/tab-separated-values, 1350 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    Chemical composition of northwest Nazca Plate sediments (2023)
    PANGAEA
    Details
    Publication Date: 2023-08-28
    Description: The samples used for this study are a subset from almost 200 surface samples from the western Nazca plate analyzed during the IDOE Nazca Plate Project. The subset was selected to provide coverage of the major physiographic units north of the Sala y Gomez Ridge and to encompass the major sediment types defined by factor analysis of selected major- and minor-element concentrations. The chemical data used in this study consist of bulk-sediment analyses by atomic absorption spectrometry. Samples were dissolved in Teflon-lined bombs using HF, HNO3, and HC1 heated to 125°C. H3BO3 was added to neutralize the HF and to dissolve insoluble fluorides. The precision of these analyses varies from less than 1% for the major elements and trace elements with concentrations greater than 200 ppm to approximately 20% for trace elements in the CaCO3-rich samples. For Fe,Cu,Ni and Zn the leached and residual parts listed in the original table have been reconciled.
    Keywords: Aluminium; AMPH01AR; AMPH01AR-032GV; AMPH-032GV; AMPHITRITE; Argo; Atomic absorption spectroscopy; Barium; Calcium carbonate; Copper; Deposit type; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Description; Elevation of event; Event label; FFC; Free fall corer; GC; Geochemistry; Gravity corer; Identification; Iron; Kana Keoki; KK71; KK71084 (13); KK71087 (12); KK71105 (11); KK71115 (3); KK71117 (4); KK71124 (10); KK71-FFC-117; KK71-FFC-130; KK71-FFC-168; KK71-FFC-177; KK71-GC015; KK71-LDC003; Latitude of event; Longitude of event; Manganese; manganese micronodule; manganese nodule; MG1 (15); MG2 (16); MG2 (22); MG3 (14); Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; OC73-1; OC73-1-03; OC73-2; OC73-2-05GRAV; OC73-3; OC73-3-06; OC73-3-07; OC73-4; OC73-4-33; ocean; Oceanographer; P (18); P (19); P (20), MG2; P (9); Pacific Ocean; PC; Piston corer; RC09; RC09-99; RC13; RC13-84; RC13-92; RC13-93; Robert Conrad; sediment; Silicon; Sodium chloride; South Pacific Ocean; V19; V19-43; V19-53; V19-54; Vema; Y71-07; Y71-07-54-MG3; Y71-09; Y71-09-93; Y71-09-97G; Yaquina; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 326 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 3
    facet.materialart.
    Unknown
    Chemical composition of manganese nodules and crusts from the Bauer Basin, Pacific Ocean (2022)
    PANGAEA
    Details
    Publication Date: 2024-04-20
    Description: Samples were collected from R/V "Yaquina" during cruise YALOC-73 of Oregon State University. The six Mn nodules and four Mn crusts from Y73-3-22D station in the Bauer Basin were analyzed both chemically and mineralogically. One cross-section through each sample was ground in an agate mortar, dissolved with hydrofluoric acid and aqua regio under pressure, and analyzed by atomic absorption spectrophotometry for Fe, Mn, Cu, Ni, Zn, Co, Ba, Ca, Si, and Al.
    Keywords: Aluminium; Atomic absorption spectrophotometry; Barium; Calcium; Cobalt; Copper; Deposit type; Description; Elevation of event; Event label; Geochemistry; Identification; Image; Iron; Latitude of event; Longitude of event; Manganese; manganese micronodule; manganese nodule; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; ocean; Pacific Ocean; PC; Piston corer; Sample type; sediment; Silicon; Y73-03; Y73-03-22D; Yaquina; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 171 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
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