Strontium in the brown coals of the Irsha-Borodino and Berezovo deposits of the Kansk-Achinsk Basin, and in the Khanda and Azeisk deposits in the Irkutsk Region

The content of strontium and the laws of its occurrence in the brown coals of four deposits of Eastern Siberia were studied. Its highest concentrations were found in samples of coals from the Irsha-Borodino deposit.