热液活动对海底沉积物中有机质的影响

摘要

从总有机碳、烃类、芳香化合物和脂肪酸等极性化合物入手,总结海底热液活动对沉积物中有机质的影响,结合沉积物中无机参数,分析无机参数与有机质之间的相关关系,对海底热液活动对沉积物中有机质影响机制问题进行探讨.热液活动对海底沉积物中有机质有一定影响,海底热液区中的有机物可经过扩散、对流、携带等方式逐渐向热液区周边迁移;高温的热液流体在对沉积物进行淋滤时,能使沉积物中的有机质发生蚀变,都对沉积物中有机质产生重大影响.提出海底沉积物中有机质在今后的研究方向.%The paper summarized the total organic carbon, hydrocarbons, aromatic compounds, aliphatic acid in sediments around hydrothermal areas, generalized the relationship between the parameters of inorganic and organic matter, and then discussed the in fluencing mechanism of hydrothermal activities on the organic matter. Hydrothermal activities have effects on organic matter of seafloor sediment. The organic matter in hydrothermal areas is able to migrate gradually all around hydrothermal areas; at the same time, sediment is leached by high temperature hydrothermal fluid, which is ableto result in alteration of organic matter in sediment. The reviews will provide the reference for the research of organic matters in sediment.