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Determination of rare earth elements by neutron activation analysis in altered ultramafic rocks from the Akwatia District of the Birim diamondiferous field, Ghana

  • S. B. Dampare
  • D. K. Asiedu
  • S. Osae
  • B. J. B. Nyarko
  • B. Banoeng-Yakubo
Article

Summary

Rare earth element (REE) analysis using instrumental neutron activation (INAA) was carried out on ultramafic rocks from the Akwatia District of the Birim diamondiferous field, Ghana, with the primary objective of investigating their kimberlitic characteristics. The total REE concentrations range from 113 to 1610 ppm and fall within the interval of those reported in the literature for kimberlites. Despite the marked difference in the REE contents, all the analyzed samples show similar REE patterns that resemble those of kimberlites. However, compared to most of the kimberlites, the ultramafic rocks have small negative Eu anomalies and low light-REE/heavy-REE ratios, suggesting that the rocks have been significantly assimilated by crustal rocks.

Keywords

Physical Chemistry Inorganic Chemistry Rare Earth Element Primary Objective Activation Analysis 
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Copyright information

© Springer-Verlag/Akadémiai Kiadó 2005

Authors and Affiliations

  • S. B. Dampare
    • 1
  • D. K. Asiedu
    • 2
  • S. Osae
    • 3
  • B. J. B. Nyarko
    • 4
  • B. Banoeng-Yakubo
    • 5
  1. 1.National Nuclear Research Institute, Ghana Atomic Energy Commission
  2. 2.Department of Geology, University of Ghana
  3. 3.National Nuclear Research Institute, Ghana Atomic Energy Commission
  4. 4.National Nuclear Research Institute, Ghana Atomic Energy Commission
  5. 5.Department of Geology, University of Ghana

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