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热液流体中的主要有机质包括腐殖物质（t＜50℃）、有机羧酸（t＝80～140℃）、原油（120～180℃）和水溶性甲烷气（180～300℃）。腐殖物质在初始矿源层形成中起重要作用，在腐殖酸缩合成干酪根过程中通过去氧而导致还原的成岩环境，从而有效地防止金属元素在初始矿源石化过程中的分散。有机羧酸是干酪很早期演化的必然产物，富含有机羧酸的油田卤水可以成为MVT铅锌矿的成矿流体。在一定成熟度范围内原油可能成为汞金热液流体的重要有机组分。水溶性甲烷气是铜、铀、金等中低温热液流体的重要有机组分。有机质演化的阶段性决定了相应热液流体中有机质的类型；此外沉积建造的类型、金属元素在油／卤之间分配系数差异和构造条件差异导致了金属矿化分异。
The main organic matter in hydrothermal fluids includes humic substances (t <50 ° C), organic carboxylic acids (t = 80-140 ° C), crude oil (120-180 ° C) and water soluble methane gas (180-300 ° C). Humic substances play an important role in the formation of initial source beds. During the process of humic acid condensation into kerogen, the desiccated diagenetic environment is formed through deoxidation, which effectively prevents the metal elements from being dispersed during the initial source petrification. Organic carboxylic acids are a necessary product of the early evolution of cheese, and oil-rich brine containing organic carboxylic acids can become an ore-forming fluid for the MVT lead-zinc mine. Crude oil may be an important organic component of mercury gold hydrothermal fluids over a range of maturities. Water-soluble methane gas is copper, uranium, gold and other low-temperature hydrothermal fluid is an important organic component. The stage of the evolution of organic matter determines the type of organic matter in the corresponding hydrothermal fluid. In addition, the type of sedimentary construction, the differences in the distribution coefficients of metal elements between oil / brine and the differences in structural conditions lead to the differentiation of metal mineralization.