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  • Articles  (2)
  • Geophysics
  • Meteorology and Climatology
  • 2010-2014
  • 1995-1999  (2)
  • 1985-1989
  • 1999
  • 1995  (2)
  • 1986
Collection
Source
Keywords
Publisher
Years
  • 2010-2014
  • 1995-1999  (2)
  • 1985-1989
Year
Topic
  • 1
    Electronic Resource
    Electronic Resource
    The importance of radioactivity in geoscience and mining (1995)
    Springer
    Cellular and molecular life sciences 51 (1995), S. 703-709 
    Details
    ISSN: 1420-9071
    Keywords: Geophysics ; geology ; natural radioactivity ; radiometry ; mining ; uranium ores ; radon ; disposal of radioactive waste
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Abstract Almost simultaneously with Roentgen rays, natural radioactivity was discovered. Its investigation led to important fundamentals of the geosciences: petrophysics, terrestrial heat flow, isotope geology, and absolute geological chronology. In applied geophysics and geology, exploration of radioactive ores and of tectonic faults, and radiometric well loggings, are used. Production of radioactive water and mining for uranium ores are discussed, including their development (especially in the Saxon ore mountains) and the consequences on health (radon in underground air and houses). Disposal of radioactive waste is touched on briefly.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01941267
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  • 2
    Electronic Resource
    Electronic Resource
    The role of the Hermanus Magnetic Observatory in geomagnetic field research (1995)
    Springer
    Astrophysics and space science 230 (1995), S. 439-456 
    Details
    ISSN: 1572-946X
    Keywords: Geophysics ; geomagnetic field
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Geomagnetic field research carried out at the Hermanus Magnetic Observatory over the past decade is reviewed. An important aspect of this research has been the study of geomagnetic field variations, with particular emphasis on ULF geomagnetic pulsations. Features of geomagnetic pulsations which are unique to low latitude locations have been investigated, such as the cavity mode nature of low latitude Pi 2 pulsations and the role played by ionosphericO + ions in the field line resonances responsible for Pc 3 pulsations. A theoretical model has been developed which is able to account for the observed relationships between geomagnetic pulsations and oscillations in the frequency of HF radio waves traversing ionospheric paths. Other facets of the research have been geomagnetic field modelling, aimed at improving the accuracy and resolution of regional geomagnetic field models, and the development of improved geomagnetic activity indices.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00658201
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    Paper (German National Licenses)
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