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  • 1
    Unknown
    Trondheim : NGU - Geological Survey of Norway
    Keywords: quaternary ; geology ; glaciology ; Norway
    Description / Table of Contents: The profound impact of glaciers on the development of the landscape in Norway has become common knowledge among most geologists during the last centuries. For example, the alpine landscape, the U-formed valleys with deep basins and bedrock thresholds, the fjords, the strandflat, the glacially polished and striated rock surfaces, and the various and numerous glacial deposits all bear clear evidence of strong glacier influence. Glaciers have advanced and retreated in Norway and adjacent areas a number of times during the last 2–3 million years, and therefore it is commonly thought that the present-day landscape was formed mainly during this very young period of the geological time scale. There are, however, several preglacial landscape features that are preserved or only slightly changed during these young glaciations. Both types of landscape, i.e., the glacially formed landscape and the preglacial landscape, are presented in the first chapter of this volume. This chapter deals with both the processes and their products in the history of landscape development. Starting with the preglacial development, it continues through the ice ages, and ends with processes and landscape development in the Holocene time period. The second chapter discusses the glacial history of Norway during the Quaternary time period, and describes the glacier variations with advance and retreat of the glaciers and ice sheets. The third chapter presents the record of deposits from the represented stadials, interstadials and interglacials during the last 300,000 years in Norway and adjacent areas, and the suggested correlations between these deposits. The fourth chapter deals with neotectonics in Norway and adjacent areas, which are also largely a result of ice-sheet advance, erosion, sedimentation and retreat. The pressure variations on the ground surface as a result of variable ice weight, glacier erosion and accumulation have led to many earthquakes and large faults, such as the postglacial Stuoragurra fault on Finnmarksvidda. This compilation of the present knowledge of the Quaternary geology of Norway will be of use to several of our fellow colleagues of geology, students, and other dedicated, non-professional readers.
    Pages: Online-Ressource (173 Seiten) , Illustrationen, Diagramme, Karten
    ISBN: 9788273851536
    Language: English
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    Journal of the American Chemical Society 112 (1990), S. 6652-6656 
    ISSN: 1520-5126
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 116 (2002), S. 1424-1434 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Electric field gradients at the oxygen and hydrogen nuclei of water have been calculated using high level ab initio methods. Systematic studies of basis set truncation errors have been carried out at the Hartree–Fock and coupled cluster singles and doubles (CCSD) levels using extended correlation consistent basis sets with up to 398 basis functions. Correlation effects are investigated using a hierarchy of correlation methods extending up to the approximate inclusion of triples excitations by means of the CCSD(T) method. Rovibrational effects have been calculated combining accurate ab initio electric field gradient data and accurate experimental force fields. On the basis of the most accurate results for the electric field gradients, the nuclear quadrupole coupling constants for deuterium and oxygen-17 have been discussed including the temperature dependence. The final results are discussed in view of existing experimental data. Our best values for the nuclear quadrupole coupling constants are in excellent agreement (within 1%) of recent experimental results, while some earlier experimental values are shown to be less reliable.© 2002 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Polar research 21 (2002), S. 0 
    ISSN: 1751-8369
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geography , Geosciences
    Notes: The onshore record of Middle to Late Weichselian sediments and glacial history in Norway indicates a succession of four major ice advances alternating with rapid, considerable ice recessions and interstadial conditions. During all the glacial advances the ice sheet expanded from onshore/inland positions to the shelf areas. The basis for visualizing these variations in glaciation curves constructed along nine transects from inland to shelf, and for interpretation of the palaeoclimatic history, is the regional Quaternary stratigraphy, more than 300 datings, fossil content and some palaeomagnetic data. The methods applied in recent years for AMS radiocarbon dating of glacial sediments with low organic carbon content have given promising results with respect to accuracy and precision, and the results of such datings were an important tool for our reconstructions and for timing of the ice oscillations. The rapid and rhythmic ice fluctuations, as reconstructed in our new model, have been fairly synchronous in most parts of Norway. Ice advances commenced and culminated at 40, 30-28, 24-21 and 18-15 (14C) Kya. We describe three intervening interstadials from inland sites: Hattfjelldal I, Hattfjelldal II and Trofors. Our stratigraphical record also includes many indications of high, pre-Holocene, relative sea levels, suggesting a considerable glacioisostatic depression of western Scandinavia during the interstadials. In our glaciation model we suggest that, in addition to precipitation, the mountainous fjord and valley topography, glacial isostasy and relative sea level changes were probably more important for the size of the glacial fluctuations than were air temperature changes.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    FEMS microbiology letters 236 (2004), S. 0 
    ISSN: 1574-6968
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Biology
    Notes: Using fluorescence spectroscopy we detected long trains of macroscopic oscillations in the glycolytic pathway, in whole cell suspensions of Saccharomyces cerevisiae, without addition of cyanide. Such oscillations may be induced if argon or another inert gas is bubbled through the yeast cell suspension. This supports that the synchronizing agent is a volatile compound secreted by the yeast cells, e.g. CO2 and/or acetaldehyde. Our results show that the rate of acetaldehyde removal is not a crucial parameter to the synchronization of the yeast cells. The sample cell was connected to a membrane inlet mass spectrometer (MIMS) for online determination of extracellular non-polar compounds. Oscillations in the secretion of CO2 were detected using the MIMS.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 97 (1993), S. 8431-8441 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 105 (1996), S. 10849-10859 
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: Quasiperiodicity in models of the peroxidase–oxidase reaction has previously been reported in "abstract'' or phenomenological models which sacrifice chemical realism for tractability. In the present paper, we discuss how such behavior can arise in a detailed model (BFSO) of the reaction which has previously been shown to be consistent with experimental findings. We distinguish two types of quasiperiodic behavior. Regions of what we here refer to as "primary'' quasiperiodicity are delimited by supercritical secondary Hopf bifurcations at one end of the relevant range of parameter values and by heteroclinic transitions at the other. Regions of so-called "secondary quasiperiodicity'' are delimited by supercritical Hopf bifurcations at both ends of the parameter range. The existence of a quasiperiodic route to chaos in a modified version of BFSO is also described. This paper emphasizes the experimental circumstances under which quasiperiodic dynamics may be detected in the lab and offers specific prescriptions for its observation. © 1996 American Institute of Physics.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 96 (1992), S. 5678-5680 
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 316 (1979), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 267 (1977), S. 177-178 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Fig. 1 Oscillations in oxygen concentration in peroxidase catalysed oxidation of NADH in system open to O2. A stirred 5 ml sample containing horseradish peroxidase, 10 uM 2,4-dichlorophenol and 0.2 jaM methylene blue in a 0.1 M Na-acetate buffer p.H 5.1 was in contact with an O2/N2 gas mixture at ...
    Type of Medium: Electronic Resource
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