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媒中微量元素的富集受多种因素和多期作用控制，往往是多因素叠加的结果。文中对煤中有害微量元素富集的成因类型进行了初步探讨，根据煤中有害元素富集的主导因素，划分出5种媒中有害微量元素富集的成因类型：（1）陆源富集型；（2）沉积-生物作用富集型；（3）岩浆-热液作用富集型；（4）深大断裂-热浪作用富集型；（5）地下水作用富集型。对煤中有害微量元素的来源。运移、富集的地质地球化学背景进行深入研究，将有助于发展中国煤地球化学基础理论，也可为煤利用过程中的环境保护提供科学依据。
The enrichment of trace elements in the media by a variety of factors and multi-phase control, often multi-factor superposition of the results. Based on the dominant factors of harmful elements enrichment in coal, the genetic types of harmful trace elements enrichment in coal are divided into five types: (1) land-source enrichment ; (2) Sedimentary-biologically enriched type; (3) Magmatic-hydrothermal enrichment; (4) Deep-breached-heat wave enrichment; and (5) Groundwater enrichment. The source of harmful trace elements in coal. Migration and enrichment of the geo-geochemical background in-depth study will help to develop the basic theory of China’s coal geochemistry, but also for the use of coal in the process of environmental protection to provide a scientific basis.