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藻、有机质、沉积物、粘土矿物富集和释放金的对比实验研究表明:活体生物富金能力较强,热水环境下温泉蓝细菌富金能力更强,并且为生物所富集的金易于迁出参与成矿;在生物生活的氧化环境,生物对金的作用主要表现为与生理活动有关的吸收作用,与金离子结合的生物配合物主要是含硫有机化合物;在沉积→成岩→成矿过程中,随着生物活体→死体→腐解有机质→有机淤泥→有机岩的变化,有机质对金的富集作用越来越小,并随着有机质成熟度的增加,其富金能力变弱而解析金的能力却增强。3种粘土矿物吸附金的能力为:伊利石>高岭石>蒙脱石,释放金的能力相反,并且粘土矿物的加入降低了有机质吸附和释放金的能力;油田卤水对富集于活体藻生物中的金的萃取能力强于无机流体。
The comparative experiments on algae, organic matter, sediment, clay mineral enrichment and release of gold show that the biologically rich gold is stronger, the hot spring cyanobacteria are more gold-rich in hot water environment, Migrated out to participate in metallogenesis; in the biological environment of living environment, the biological effect of gold mainly on the absorption of physiological activities, biological complexes with gold ions are mainly sulfur-containing organic compounds; in the deposition → diagenesis → into In the process of mineralization, with the change of biological living body → dead body → decomposed organic matter → organic silt → organic rock, the enrichment effect of organic matter on gold is getting smaller and smaller, and its richness becomes weak as the maturity of organic matter increases The ability to parse gold has increased. The ability of the three clay minerals to adsorb gold is: illite> kaolinite> montmorillonite, the ability to release gold is opposite, and the addition of clay minerals reduces the ability of organic matter to adsorb and release gold; Gold in biological extraction ability than inorganic fluids.