Provenance analyses of the heavy-mineral beach sands of the Annaba coast, northeast Algeria, and their consequences for the evaluation of fossil placer deposit

  • Asma Chemam
  • Soraya Hadjzobir
  • Menana Daif
  • Uwe Altenberger
  • Christina Günter


The paper presents the first study of heavy-mineral sand beaches from the Mediterranean coast of Annaba/Algeria. The studied beaches run along the basement outcrops of the Edough massif, which are mainly composed by micaschists, tourmaline-rich quartzo-feldspathic veins, gneisses, skarns and marbles. Sand samples were taken from three localities (Ain Achir, Plage-Militaire and El Nasr). The heavy-mineral fraction comprises between 74 and 91 vol%. The garnets of the beaches are almandine rich and tourmalines vary with respect to their location from schorl to dravite. Tourmaline at Ain Achir and the Plage-Militaire is schorlits, while at El Nasr beach dravite is ubiquitous. The World Shale Average normalised REE of the sands and the basement outcrops reveal: (i) Ain Achir beach: REE pattern of sand and the coastal rocks from the studied beaches reflects a multiple sources; (ii) Plage-Militaire: the sand and the coastal outcrops show similar LREE and a strong enrichment in HREE, suggesting the presence HREE-rich phases found as inclusions in staurolite; (iii) El Nasr: two types of sand patterns are found: one with flat REE pattern similar to the proximal rocks and other one enriched in HREE suggesting a mixed source.


Provenance heavy minerals beach sediments fossil placer geochemistry Annaba/Algeria 



We are very grateful to anonymous reviewers for their helpful comments and suggestions that improved this paper. Moreover, we thank the Institute of Earth and Environmental Science, the University of Potsdam for their support in analytical facilities.


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Copyright information

© Indian Academy of Sciences 2018

Authors and Affiliations

  • Asma Chemam
    • 1
  • Soraya Hadjzobir
    • 2
  • Menana Daif
    • 1
  • Uwe Altenberger
    • 3
  • Christina Günter
    • 3
  1. 1.Laboratory of LGRNBadji-Mokhtar/Annaba UniversityAnnabaAlgeria
  2. 2.Laboratory of Soils and Sustainable DevelopmentBadji-Mokhtar/Annaba UniversityAnnabaAlgeria
  3. 3.Institute of Earth and Environmental ScienceUniversity of PotsdamPotsdam-GolmGermany

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