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Sergey B. Felitsyn
Sergey B. Felitsyn
Chief Researcher, Ph.D., Dr.Sci.
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences
Chief Researcher, Ph.D., Dr.Sci.
Institute of Precambrian Geology and Geochronology, Russian Academy of Sciences

Articles

Geology
  • Date submitted
    2022-03-22
  • Date accepted
    2022-06-15
  • Date published
    2022-07-26

Gold in biogenic apatites of the Baltic-Ladoga phosphorite basin

Article preview

The distribution of gold in biogenic apatites from the Ordovician deposits in the northwest of the East European Platform shows that the maximum concentration of gold in apatites is found within the Ladoga-Baltic suture zone. Gold mineralization has a superimposed character, which is confirmed by the dependence of the gold content on the size of apatite particles and a number of isotope geochemical systematics in biogenic apatites. Gold is present in the form of high fineness particles to 20 µm in size on the surface of biogenic apatite fragments (phosphate brachiopod shells and conodont elements) and is easily extracted. In 10 % of samples of biogenic apatites, the total content of rare earth elements is more than 1 wt.%.

How to cite: Felitsyn S.B., Alfimova N.A. Gold in biogenic apatites of the Baltic-Ladoga phosphorite basin // Journal of Mining Institute. 2022. Vol. 255. p. 470-475. DOI: 10.31897/PMI.2022.47