作者: Vladimir V. Seredin , Shifeng Dai
DOI: 10.1016/J.COAL.2011.11.001
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摘要: Abstract This paper presents data on widespread abnormal accumulations of lanthanides and yttrium (REY) in many coal deposits worldwide. High REY contents (> 0.1%) have been found seams ashes, as well the host basement rocks some basins. For a preliminary evaluation ashes an raw material, not only abundance but also individual compositions were taken into account this paper. Three distribution patterns for high-REY are fixed, with LREY- (LaN/LuN > 1), MREY- (LaN/SmN 1), HREY- (LaN/LuN