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  • Springer Nature  (4.713)
  • Wiley  (2.569)
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  • Oxford University Press  (840)
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  • 2000-2004
  • 1975-1979
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  • 1
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  EPIC3Veröffentlichungen des Geobotanischen Institutes Rübel in Zürich, Bremerhaven, PANGAEA, 34, pp. 150-158
    Publikationsdatum: 2019-07-17
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: PANGAEA Documentation , notRev
    Format: application/pdf
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  • 2
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  EPIC3Bremerhaven, PANGAEA
    Publikationsdatum: 2015-10-28
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: PANGAEA Documentation , notRev
    Format: image/jpeg
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  • 3
    ISSN: 1089-7666
    Quelle: AIP Digital Archive
    Thema: Physik , Elektrotechnik, Elektronik, Nachrichtentechnik
    Notizen: PHF online publishes articles that emphasize understanding of the physics underlying modern technology. The subject coverage includes, but is not limited to, experimental or theoretical physics applied to all aspects of materials: for example, charge and mass transport, superconductivity magnetism; surfaces, interfaces, thin films, crystal lattice defects; electrical, optical, magnetic, and structural properties; processing; ion implantation. Materials covered include semiconductors, superconductors, metals and alloys, amorphous materials, and oxides.
    Materialart: Digitale Medien
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  • 4
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Goldberg, Edward D; Arrhenius, Gustaf (1958): Chemistry of Pacific pelagic sediments. Geochimica et Cosmochimica Acta, 13(2-3), 153-212, https://doi.org/10.1016/0016-7037(58)90046-2
    Publikationsdatum: 2023-08-28
    Beschreibung: The chemical and mineralogical composition of pelagic sediments from the East Pacific Ocean has been determined with the aim of defining the ultimate sources and the mechanisms of formation of the solid phases. The distribution of elements between sea-water, the pore solution and the various solid components of the sediments permits interpretations of the variations in time and space of the gross chemical composition of pelagic clays. For example, manganese, present in sea-water in a divalent form, is apparently oxidized at the sediment-water interface to tetravalent species which subsequently become a part of the group of ferromanganese oxide minerals which are found in the marine environment. It is suggested the rate of manganese accumulation in sediments is some function of the length of time the sediment surface is in contact with sea-water. The contribution of chemical species from the different geospheres is considered. The quantitative importance of pelagic clays in the major sedimentary cycle is studied on the basis of the distribution of the weathered igneous rock products between continental and pelagic deposits and sea-water. These analyses of a wide variety of pelagic clays allow a reformulation of the geochemical balance and it is concluded that pelagic clays account for approximately 13 per cent of the total mass of sediments produced over geologic time.
    Schlagwort(e): 08995002-SC11; Barium; Boron; Calcium; Chromium; Cobalt; Copper; DEPTH, sediment/rock; Description; Dredge; DRG; File name; Magnesium; Manganese; Nickel; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Sample ID; San Clemente Basin, Pacific ocean; Strontium; Tin; Titanium; Uniform resource locator/link to image; Vanadium; X-ray microanalyzer analysis (XMA); Ytterbium; Zirconium
    Materialart: Dataset
    Format: text/tab-separated-values, 30 data points
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  • 5
    Publikationsdatum: 2023-08-28
    Beschreibung: Deposits of manganese ore have been found in five of the six provinces of Cuba and have been reported from the sixth. Only Oriente and Pinar del Rio provinces have more than a few known deposits and only the deposits of Oriente have yielded any appreciable amount of ore. In this area the Cobre formation, of late Cretaceous(?) to middle Eocene age, overlies the Vinent formation but their stratigraphie relations are unknown. The Cobre overlies unconformably the Habana(?) formation. The Cobre formation consists of andesitic, basaltic, and dacitic tuff, agglomerate, and lavas with minor amounts of marine clastic and limestone deposits, and a prominent limestone bed, the Charco Redondo limestone member, at the top of the formation. All productive manganese deposits of Oriente are in the Cobre formation, usually within a few tens of meters above or below the base of the Charco Redondo limestone member.
    Schlagwort(e): Charco_Redondo_S; Comment; Cuba; Deposit type; DEPTH, sediment/rock; Description; Elevation of event; Event label; Guanaba_S; Latitude of event; Longitude of event; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Ponupo_S; Position; Quantity of deposit; Quinto_S; Sample ID; Sediment type; Size; Substrate type; Taratana_S
    Materialart: Dataset
    Format: text/tab-separated-values, 65 data points
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  • 6
    Publikationsdatum: 2023-08-28
    Schlagwort(e): Cerium oxide; CHA-276; Challenger1872; DEPTH, sediment/rock; Description; Grab; GRAB; H.M.S. Challenger (1872); Mercury oxide; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Sample code/label; Thorium oxide
    Materialart: Dataset
    Format: text/tab-separated-values, 5 data points
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  • 7
    Publikationsdatum: 2023-08-28
    Schlagwort(e): 248; CHA-248; CHA-252; CHA-276; Challenger1872; DEPTH, sediment/rock; Description; Event label; Grab; GRAB; H.M.S. Challenger (1872); Insoluble material; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Northwest Pacific Ocean; Sample code/label; Soluble residue; TRAWL; Trawl net
    Materialart: Dataset
    Format: text/tab-separated-values, 12 data points
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  • 8
    Publikationsdatum: 2023-08-28
    Schlagwort(e): 248; CHA-248; CHA-252; CHA-276; Challenger1872; Deposit type; DEPTH, sediment/rock; Description; Event label; Feature; Grab; GRAB; H.M.S. Challenger (1872); NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Northwest Pacific Ocean; Position; Quantity of deposit; Sample code/label; Sediment type; Size; Station label; Substrate type; TRAWL; Trawl net; Visual description
    Materialart: Dataset
    Format: text/tab-separated-values, 30 data points
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  • 9
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Riley, J P; Sinhaseni, P (1958): Chemical composition of three manganese nodules from the Pacific Ocean. Journal of Marine Research, 17, 466-482, hdl:10013/epic.46183.d001
    Publikationsdatum: 2023-08-28
    Beschreibung: Three manganese nodules from the Pacific Ocean have been analysed for 35 elements by using mainly spectrophotometric and spectrographic methods. Cu, Co, Ni, Zn, and Pb were found in amounts approaching 1 %, which far exceeds their average concentrations in igneous rocks. On the other hand, elements having readily hydrolysable ions, such as Ga, Sc, Zr, Y, La and Ti, are present only in amounts comparable with their concentrations in igneous rocks. Sb, Bit Be, and Cr were not detected. The hydrochloric acid-insoluble fraction of nodules is practically free of the heavy metals that are characteristic of the acid-soluble fraction; it consists principally of clay minerals, together with lesser amounts of quartz, apatite, biotite and sodium and potassium felspars.
    Schlagwort(e): NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS
    Materialart: Dataset
    Format: application/zip, 5 datasets
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  • 10
    Publikationsdatum: 2023-08-28
    Schlagwort(e): 248; Aluminium oxide; Barium oxide; Boron oxide; Cadmium oxide; Calcium oxide; Carbon dioxide; CHA-248; CHA-252; CHA-276; Challenger1872; Chromium(III) oxide; Cobalt oxide; Copper(II) oxide; DEPTH, sediment/rock; Description; Event label; Gallium oxide; Germanium oxide; Grab; GRAB; H.M.S. Challenger (1872); Iron oxide, Fe2O3; Lanthanum oxide; Lead oxide; Magnesium oxide; Manganese oxide; Molybdenum trioxide; Nickel oxide; NOAA and MMS Marine Minerals Geochemical Database; NOAA-MMS; Northwest Pacific Ocean; Oxygen, gas; Phosphorus pentoxide; Potassium oxide; Sample code/label; Scandium oxide; Silver oxide; Sodium oxide; Spectrophotometric; Strontium oxide; Thallium(I) oxide; Tin dioxide; Titanium dioxide; TRAWL; Trawl net; Tungsten trioxide; Vanadium oxide; Water in rock; Yttrium oxide; Zinc oxide; Zirconium dioxide
    Materialart: Dataset
    Format: text/tab-separated-values, 104 data points
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