Geological Conclusions and Problems

  • O. Braitsch
Part of the Minerals, Rocks and Inorganic Materials book series (MINERALS, volume 4)


The division of fossil salt deposits according to the differences in their MgSO4 content is a natural consequence of the clear distinction in their chemistry and petrography. All these types trace their origin back to the evaporation of seawater, for only in seawater is there the inexhaustible supply of Na, K and Mg etc. sufficient to account for the enrichment in salt deposits. In purely terrestrial salt lakes the precipitation of the chlorides of potassium and magnesium is scarcely ever attained and there is always a predominance of sodium and other carbonates or sulphates. The occurrence of borates and nitrates, on the evidence of the prevailing anions, is a clear indication of non-marine origin. The extent and salt content of terrestrial salt lakes is small (for details, see Lotze, 1938).


Salt Rock Salt Deposit Bromine Content Annual Rhythm Zechstein Salt 
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  1. 56.
    But see the very important monograph by UsDOwsKI, H. E.: „Die Genese von Dolomit in Sedimenten“, Mineralogie und Petrographie in Einzeldarstellungen, Vol. 4, Berlin-Heidelberg-New York: Springer 1967.Google Scholar
  2. 60.
    Braitsch, O.: „Die Entstehung der Schichtung in rhythmisch geschichteten Evaporiten“, Geol. Rundschau 52, 405–417 (1962).Google Scholar
  3. 61.
    See also: Braitsch, O.: “The Temperature of Evaporite Formation. Problems in Palaeoclimatology”. Ed. by Nairn, A. E. M., Interscience Publishers London-New York-Sydney, 479–531(1963).Google Scholar
  4. 63.
    For data on the content of gases in salt rocks see, for instance: Ackermann, G., Schrader, R., Hoffmann, K.: Untersuchungen an gashaltigen Mineralsalzen, II. Teil: Methodik und Ergebnisse der gasanalytischen Untersuchungen. Bergakademie 16, 676–679 (1964).Google Scholar

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© Springer-Verlag Berlin · Heidelberg 1971

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  • O. Braitsch

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