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  • 1: advanced search Author, Corporation: Schefuß, Enno   :   —  1 hit    Redo Search Permalink feed icon
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  • 1
    Online Resource
    Online Resource
    Hydrothermal Processes at Seafloor Spreading Centers. (1984)
    New York, NY :Springer,
    Details
    Keywords: Sea-floor spreading-Congresses. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (802 pages)
    Edition: 1st ed.
    ISBN: 9781489904027
    Series Statement: Nato Conference Series ; v.12
    URL: https://ebookcentral.proquest.com/lib/geomar/detail.action?docID=6583394
    DDC: 551.46/08
    Language: English
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    GEOMAR EBL
  • 2
    Book
    Book
    YMER-80, Swedish Arctic expedition : cruise report for marine geology and geophysics ; sediment core descriptions (1984)
    Stockholm : Geologiska Institution
    Details Availability
    Keywords: Arktisforschung ; Meeresgeologie
    Type of Medium: Book
    Pages: 123 S , graph. Darst., Kt
    ISBN: 9171466045
    Series Statement: Meddelanden fr°an Stockholms Universitets Geologiska Institution 260
    Language: English
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    GEOMAR CATALOGUE
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  • 3
    Book
    Book
    Particulate and dissolved matter as sources for pelagic sediments (1976)
    Stockholm : Almqvist & Wiksell
    Details Availability
    Type of Medium: Book
    Pages: S. 16 - 79 , graph. Darst., Kt.
    Series Statement: Stockholm contributions in geology 30,2
    Language: English
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  • 4
    Electronic Resource
    Electronic Resource
    Improved sampling of soft bottom sediments by combined box and piston coring (1987)
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 34 (1987), S. 0 
    Details
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Field tests demonstrate that sampling of soft bottom sediments can be significantly improved by combined box coring and shipboard sampling using hand-operated piston coring. A convenient piston equipment devised for such subsampling is presented.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-3091.1987.tb00797.x
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    Paper (German National Licenses)
    Fulltext
  • 5
    Electronic Resource
    Electronic Resource
    Deposition of Manganese Rich Sediments during Glacial Periods (1970)
    [s.l.] : Nature Publishing Group
    Nature 226 (1970), S. 629-630 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1. Analytical results for core P6304?9; d180 and CaC03 from Emiliani2. Mn (per cent), Cu, Y and La (p.p.m.) are given on a carbonate free basis(CFB). Mn was determined by spectroscopic analysis (spec) and atomic absorption measurements (AA), showing a very good agreement. Two other series of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/226629a0
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    Paper (German National Licenses)
    Fulltext
  • 6
    Electronic Resource
    Electronic Resource
    Physical Sciences: Geochemical Evidence for Ocean Floor Spreading in South Atlantic Ocean (1970)
    [s.l.] : Nature Publishing Group
    Nature 227 (1970), S. 1041-1043 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] During this part of the expedition several stations were occupied at approximately 30 S and cores were taken at stations 14, 15, 16, 19, 20 and 21, between the Mid-Atlantic Ridge and South America. Rates of deposition, chemical compositions, water contents and densities were determined on the ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2271041a0
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    Paper (German National Licenses)
    Fulltext
  • 7
    Electronic Resource
    Electronic Resource
    Iron-cemented sediment on lower continental slope off Cape Hatteras (1982)
    Springer
    Geo-marine letters 2 (1982), S. 89-94 
    Details
    ISSN: 1432-1157
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Notes: Abstract The textural, mineralogical, compositional and paleontological characteristics of an iron-cemented allochthonous sediment slab recovered from a zone of slumping between water depths of 2,100 and 2,350 m on the lower continental slope off Cape Hatteras are summarized. Results support interpretation of the sediment slab as the oxidized equivalent of pyrite-cemented Pleistocene to Recent sediment, an uncommon form of lithification in deep sea sediments. We propose that exposure of such slumped sediment slabs to seawater has produced an alteration sequence from pyrite-cement to iron oxide-cement. These observations extend the range of pyrite-cemented sediment initially reported from water depths between 4,770 and 4,950 m on the lower continental rise off Cape Hatteras.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02462806
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    Paper (German National Licenses)
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  • 8
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    Biological Matter as a Source for Cenozoic Deep-Sea Sediments in the Equatorial Pacific (1979)
    Springer
    In:  Ambio Special Report, 6 . pp. 11-17.
    Details
    Publication Date: 2016-07-13
    Description: Deep sea sediments contain more Cu, Ni, Ba, B etc., than transport of detrital terrigenous matter (TM) can explain. Longdistance transport in dissolved from is of no importance for many of these elements. Marine biological matter (BM) is enriched in Cu, Ni, Ba, B etc. Conservative mixing models, using BM and TM as inputs show that the compositional variations in pelagic sediments can be explained by these sources. Such mixing models have been used to estimate how the influx of BM and TM have varied with time, and to what extent different elements ares upplied by BM and TM. The results show that in Cenozoic Equatorial Pacific sediments CaCO₃, opaline silica, B, Ba, and Cu are predominantly biogenous. It is probable that also P and Ni belong to this group of elements, whereas almost all Al, Ti, Zr, V and Mn are delivered by TM or some volcanic processes. The accumulation rates (AR) for the biological constituents reached maxima during the L. Oligocene and the Miocene, and minima during the U. Oligocene and the Pleistocene; some AR from the Oligocene and the Miocene being 3-6 times higher than at present. The accumulation rate patterns for opaline silica, Ba and B co-vary, whereas the AR for CaCO₃ show another time dependance pattern. These AR-patterns are probably partly due to climatic variations. Plankton in Pacific Equatorial waters incorporate much more Cu, Ni, etc., than is required for the particulate transport of these elements to the ocean floor. This suggests that transport in particulate form of BM is an important source of Cu, Ba, B, etc. for the deep sea floor.
    Type: Article , PeerReviewed
    Format: text
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 9
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    Lithological and chemical composition, stages of sediment accumulation, and sedimentation rates in Core PSh24-2537, West Gotland Basin, Baltic Sea
    PANGAEA
    In:  Supplement to: Emelyanov, Emelyan M; Trimonis, Egidius S; Boström, Kurt; Yuspina, L F; Vaikutene, G; Lei, G (2001): Sedimentation in the West Gotland Basin, Baltic Sea (from the data of Core PSh-2537). Translated from Okeanologiya, 2001, 41(6), 910-923, Oceanology, 41(6), 873-885
    Details
    Publication Date: 2023-05-12
    Description: We studied the grain-size, mineral and chemical compositions, physical properties, radiocarbon age, spore-pollen spectra, and diatom composition in sediments from Core PSh24-2537 sampled in the West Gotland Basin. Four lithological-stratigraphic units were distinguished: varved clays of the Baltic Ice Lake, black and black-gray (sulfide) clays of the Yoldian Sea, gray clays of Ancylus Lake, and greenish-gray sapropel-like littorine and post-littorine silts of the marine stage of Holocene. These units differ from each other both in their matter composition and in plant remains. In the littorine silts organic carbon concentra¬tion reached from 1.5 to 10.35%. Conditions of sediment accumulation and the stages of evolution of the West Gotland Basin over the post-glacial time are characterized.
    Keywords: Archive of Ocean Data; ARCOD; GC; Gotland Basin, Baltic Sea; Gravity corer; PSh24-2537
    Type: Dataset
    Format: application/zip, 2 datasets
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    DATA PANGAEA
  • 10
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    Heat flow measurements during cruise YMER-80 around Spitsbergen (2005)
    PANGAEA
    Details
    Publication Date: 2023-02-07
    Keywords: DEPTH, sediment/rock; Elevation of event; Event label; Heat flow; Heat-Flow probe; HF; Latitude of event; Longitude of event; Temperature (thermal) gradient; Y80_MG122; Y80_MG123; Y80_MG124; Y80_MG126; Y80_MG130; Y80_MG131; Y80_MG132; Y80_MG133; Y80_MG134; Y80_MG137; Y80_MG138; Y80_MG139; Y80_MG142; Y80_MG143; Y80_MG147; Y80_MG150; Ymer; YMER-80
    Type: Dataset
    Format: text/tab-separated-values, 48 data points
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    DATA PANGAEA
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