Advertisement

Lithofacies Study of the Natural Phosphates: Quantification, Genetic Involvement and Distribution of Natural Radionuclides

  • Said Fakhi
  • Rabie Outayad
  • Elmehdi Fait
  • Mustapha Mouflih
  • Marusia Rentería
  • Ignacio Vioque
  • Abdelghani Adib Idrissi
  • Moncef Benmansour
  • Abderrahim Bouih
  • Hassan Elhadi
  • Abdelmjid Nourreddine
Part of the Springer Geology book series (SPRINGERGEOL)

Abstract

The Danian–Persian (–65 to –46 MA) Moroccan phosphate deposits of Ghar Tajer was geochemically characterized. Sediments are formed of Phosphate intercalated with limestone and marl and argillaceous rocks. Specific activity and isotopes ratios: 234U/238U, 230Th, 232Th/238U were determined at 20 sediments samples collected at different depth. In this presentation, we give the preliminary results of the behavior of uranium in sedimentary rocks associated with samples deposits by measuring 238U, 234U, 235U, 232Th and 230Th activities and their isotopes ratios. A first attempt to correlate the behavior of the radionuclides measured by alpha spectrometry and lithology of samples of phosphate was accomplished.

Keywords

Isotopic Ratio Phosphate Series Middle Eocene Alpha Spectrometry 230Th Activity 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Benfkira O (1980) Evolution sédimentologiques et géochimiques de la série phosphatée du Maactrichtien des Ouled Abdoun (Maroc). Thèse Doct. spec. Géol. Appl, Univ. Grenoble: 164Google Scholar
  2. Ivanovich M, Harmon RS (1982) Uranium series disequilibrium; application to environmental problems. Clarendon Press. Oxford: 32–39Google Scholar
  3. Jourani M (1988) Les phosphates méso-cénozoïques du bassin du Mrijat et leurs paléoenvironnements. B.S.G.F., 1997, t. 168 n°5, pp: 585–600Google Scholar
  4. Moumni A (1979) Etudes radiogéologique, géochimique et pétrographique des phosphates de Youssoufia (Maroc occidental). Thèse de 3ème Cycle, Nancy, p. 186. Mountain Association of Geologists 1993 Fall Field Trip: 45Google Scholar
  5. Talvitie N A (1972) Electrodeposition of actinides for alpha spectrometrie determinations, Anal. Chem. 44(1972): 280CrossRefGoogle Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2011

Authors and Affiliations

  • Said Fakhi
    • 1
  • Rabie Outayad
    • 1
  • Elmehdi Fait
    • 1
    • 2
  • Mustapha Mouflih
    • 3
  • Marusia Rentería
    • 4
  • Ignacio Vioque
    • 4
  • Abdelghani Adib Idrissi
    • 1
  • Moncef Benmansour
    • 5
  • Abderrahim Bouih
    • 5
  • Hassan Elhadi
    • 2
  • Abdelmjid Nourreddine
    • 6
  1. 1.Unit of Radiochemistry, Faculty of Science Ben SikUniversity Hassan II MohammediaCasablancaMorocco
  2. 2.Laboratory of Geochemistry, Applied Geology and Environment, Faculty of Sciences Ben SikUniversity Hassan II Casablanca-MohammediaCasablancaMorocco
  3. 3.Laboratory of Géoressources and Sedimentary Environment, Faculty of Sciences Ben SikUniversity Hassan II Casablanca-MohammediaCasablancaMorocco
  4. 4.Département de Física Aplicada II, Escuela Técnica Superior de Arquitectura de SevillaUniversidad de SevillaSevilleSpain
  5. 5.National Centre for Energy, Sciences and Nuclear Techniques (CNESTN-Morocco)RabatMorocco
  6. 6.Institut Pluridisciplinaire Hubert-Curien UMR 7178 ULP/CNRS-In2p3StrasbourgFrance

Personalised recommendations