Ore-forming materials and REE possess multi-sources,RE partitioningmodel of magmatic rock shows a differant origin compared to that of country rock. 成礦物質(zhì)及稀土元素具多來(lái)源性，巖漿巖及圍巖中稀土配分模式顯示其具不同成因特征。
Distribution patterns of the rare-earth element in coal are similar for the coals from the same district, and different for the coals of different districts. 同一礦區晚二疊世煤的稀土元素配分模式具有一定的相似性，而不同地區晚二疊世煤的稀土元素配分模式則差異較大。
