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  • PANGAEA  (4)
  • Springer  (3)
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  • 1
    Electronic Resource
    Electronic Resource
    Multielement analysis of natural waters by neutron activation, group chemical separations, and gamma-ray spectrometric techniques (1972)
    Springer
    Water, air & soil pollution 1 (1972), S. 132-143 
    Details
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract A multielement analytical technique of thermal neutron activation of frozen water samples has been developed and applied to the studies of natural waters. A rapid group chemical separation utilizing ion exchange resins and a precipitation step to reduce 24Na and 42K interferences, followed by γ-ray analysis of the fractions with Ge (Li) and multiparameter NaI (TI) systems, permits the simultaneous measurement of a large number of trace constituents. Samples of river water, rain water, processed sewage water and Greenland ice were analyzed for 19 trace elements — Ag, As, Br, Cl, Co, Cs, Cr, Cu, Fe, Hg, K, Mn, Na, Rb, Sb, Se, Se, U, and Zn. These data have been used in studies of trace element concentration factors in aquatic biota, precipitation scavenging processes, and environmental pollution.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00187702
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    Paper (German National Licenses)
    Fulltext
  • 2
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    An anticoincidence-shielded Ge(Li) gamma-ray spectrometer and its application to radioanalytical chemistry problems (1970)
    Springer
    Details
    Publication Date: 1970-09-01
    Print ISSN: 0236-5731
    Electronic ISSN: 1588-2780
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer
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    PAPER CURRENT
  • 3
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    Multielement analysis by sequential instrumental and radiochemical neutron activation (1977)
    Springer
    Details
    Publication Date: 1977-03-01
    Print ISSN: 0236-5731
    Electronic ISSN: 1588-2780
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Published by Springer
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    PAPER CURRENT
  • 4
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    Elemental composition of various manganese nodules (1973)
    PANGAEA
    In:  Supplement to: Rancitelli, L A; Perkins, R W (1973): Major and minor elemental composition of manganese nodules. In: Phase I Report - Inter-University Program of Research on Ferromanganese Deposits of the Ocean Floor. Seabed Assessment Program, IDOE, NSF, Washington D.C., USA, 1-15, https://catalog.hathitrust.org/Record/005761114
    Details
    Publication Date: 2023-08-28
    Description: Manganese nodules have been observed over wide areas of both the Pacific and Atlantic Oceans, however, deposits in the Pacific Ocean are generally much richer in elements of economic interest such as nickel, copper and cobalt. In understanding the genesis and the geochemistry involved in their formation and growth, it is important to know the total chemical composition of these nodules and how they vary within a given deposit and between deposits in the oceans of the world. The concentrations of elements: nickel, copper, cobalt, iron, manganese, silicon, and calcium, in all of the manganese nodules which have been analyzed were recently summarized by Horn et al. (1972). These observations indicate certain correlations, both positive and negative, between Mn and the associated elements within the nodules. Their data suggest similarities in chemical composition for nodules from a given area; however, the analyses of Mn nodules, like that of the ocean water, itself, has large errors associated with some of the measurements. This is understandable, since many of these measurements were intended to provide an approximate indication of elemental content. Where one is interested in carefully preparing a description of Mn nodule chemical composition which can serve as a basis for formulating theories regarding their genesis and subsequent geochemical changes in the ocean environment, then very precise and accurate analyses are essential. The purpose of this study has been to measure the concentrations of 18 elements in Mn nodules with a high degree of accuracy and determine what correlations exist between element concentrations. The scope of this study was seriously limited and therefore was confined to one area of the Pacific Ocean at approximately 22 N latitude, 114 W longitude, at an ocean depth of approximately 11,000 feet.
    Keywords: Dredge; DRG; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; SAN_JUAN_1963; SNJ-DH1; SNJ-DH10; SNJ-DH2; SNJ-DH3; SNJ-DH4; SNJ-DH5; SNJ-DH6; SNJ-DH7; SNJ-DH8; SNJ-DH9; Spencer F. Baird
    Type: Dataset
    Format: application/zip, 2 datasets
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    DATA PANGAEA
  • 5
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    Description of manganese deposits collected by the R/V Spencer F. Baird during 1963 in the California Seamount province in the Pacific Ocean (1973)
    PANGAEA
    Details
    Publication Date: 2023-08-28
    Keywords: Deposit type; DEPTH, sediment/rock; Description; Dredge; DRG; Event label; Identification; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Position; Quantity of deposit; SAN_JUAN_1963; Sediment type; Size; SNJ-DH1; SNJ-DH10; SNJ-DH2; SNJ-DH3; SNJ-DH4; SNJ-DH5; SNJ-DH6; SNJ-DH7; SNJ-DH8; SNJ-DH9; Spencer F. Baird; Visual description
    Type: Dataset
    Format: text/tab-separated-values, 69 data points
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    DATA PANGAEA
  • 6
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    (Table 1-2) Chemical Analyses of Manganese Nodules from the California Seamount province in the Pacific Ocean (1973)
    PANGAEA
    Details
    Publication Date: 2023-08-28
    Keywords: Aluminium; Antimony; Barium; Chromium; Cobalt; DEPTH, sediment/rock; Description; Dredge; DRG; Europium; Event label; Hafnium; Identification; Iron; Lanthanum; Manganese; Neutron activation analysis; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Pacific Ocean; Samarium; SAN_JUAN_1963; Scandium; SNJ-DH1; SNJ-DH2; SNJ-DH3; SNJ-DH4; SNJ-DH5; SNJ-DH7; SNJ-DH8; SNJ-DH9; Sodium; Spencer F. Baird; Terbium; Thorium; Vanadium; Zinc
    Type: Dataset
    Format: text/tab-separated-values, 519 data points
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    DATA PANGAEA
  • 7
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    (Table 2, Page 275) Elemental concentrations in manganese nodules used in seawater contact experiments (1973)
    PANGAEA
    In:  Supplement to: Robertson, D E; Rancitelli, L A (1973): Trace element additions to seawater resulting from contact with ferromanganese nodule particles. In: Phase I Report - Inter-University Program of Research on Ferromanganese Deposits of the Ocean Floor. Seabed Assessment Program, IDOE, NSF, Washington D.C., USA, 273-277, hdl:2027/wu.89033915380
    Details
    Publication Date: 2023-08-28
    Description: The gross changes in concentrations of several trace elements in seawater after contact with ferro-manganese particle suspensions has been determined. Cobalt, Fe, and Zn concentrations in the seawater were greatly increased after contact with the par¬ticles. The concentrations of Rb, U, Cs, Sb, and Ag were altered to a lesser degree by this treatment. Similar results were observed where seawater was con¬tacted with suspensions of pelagic sediments. Of the trace elements measured, cobalt and iron appear to be the best elemental indicators of the presence of manganese mining effluents in the ocean. The addi¬tions of the essential elements Co, Fe and Zn toge¬ther with nutrients from the bottom waters may pro¬duce increased biological productivity. However, the toxic trace metals, such as Hg, Cu and Cd which could enter ocean water from the nodules and sedi¬ment and which may be high in effluent-affected areas should be investigated before conclusions as to the likely impact can be reached. Trace element analysis of seawater samples collected at a Pacific Ocean manganese nodule dredging site showed high t race element concentrations, but these are believed to have resulted from contamination during sample collection or storage rather than from the dredging operations.
    Keywords: Aluminium; Antimony; Atlantic Ocean; Barium; Chromium; Cobalt; DEPTH, sediment/rock; Description; Dredge, rock; DRG_R; Europium; Event label; Grab; GRAB; Hafnium; Identification; Iron; Lanthanum; Manganese; Neutron activation analysis; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; RC15; RC15-25RD; RC15-28RD; RC15-43G; Robert Conrad; Samarium; Scandium; Sodium; Station 212; Tantalum; Terbium; Thorium; Vanadium
    Type: Dataset
    Format: text/tab-separated-values, 94 data points
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    DATA PANGAEA
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