Abstract
The Sangrud underground mine is located in the west of the Alborz basin that has been mined since 1971. The concentrations and distribution patterns of rare earth elements (REEs) in coal samples from the Mazino mine were studied by inductively coupled plasma mass spectrometry (ICP-MS). The concentrations of ∑REEs in coal samples range from 2.1 to 117.22 ppm with average of 34.74 ppm. The concentration and distribution of REEs in coal samples of Sangrud mine are effected by intrusive rocks. The coal samples from the nearer source rock have higher ash yield and REE contents than the other. The REE patterns of the coal samples exhibit two slightly different types. The differential relative enrichment patterns of light rare earth element (LREE) may have resulted in the high background LREEs in the primary mineral matter.
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