Lithology and Mineral Resources

, Volume 40, Issue 1, pp 84–88 | Cite as

Composition and texture of terrigenous-phosphate grains from the productive bed of the Unecha placer

  • V. A. Bel’tyukova
  • L. O. Magazina
Short Communications


Results of the study of the composition of rocks from the Unecha placer deposit and the morphology of phosphate segregations investigated by electron microscopy are presented. Several forms of the phosphate material occurrence, including the most abundant shells around grains of different configurations have been revealed. The studies carried out suggest a biogenic (bacterial-algal) nature of the phosphate material complicated by chemical metasomatism.


Phosphate Microscopy Electron Microscopy Mineral Resource Sedimentology 
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Copyright information

© MAIK “Nauka/Interperiodica” 2005

Authors and Affiliations

  • V. A. Bel’tyukova
    • 1
  • L. O. Magazina
    • 2
  1. 1.Geological InstituteRussian Academy of SciencesMoscowRussia
  2. 2.Institute of Geology of Ore Deposits, Petrography, Mineralogy, and GeochemistryRussian Academy of SciencesMoscowRussia

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