摘要
The paper deals with interaction of gold-organic matter in these aspects:(i) leaching of gold from rock samples by water solutions containing organic acids or crude oil;(ii) extraction of gold from water solutions by crude oil and distribution of gold in group components of crude oil;(iii) mobilization and transportation of gold with generation and migration of petroleum of oil shales;(iv) kinetics of the reduction of Au^(3+) to Au^0 by bitumen.The results show that organic matter may play an important role in formation of some sedimentary-reworked gold ore deposits by promoting leaching,migration,reduction and precipitation of gold.
The paper deals with interaction of gold-organic matter in these aspects:（i） leaching ofgold from rock samples by water solutions containing organic acids or crude oil;（ii） extraction of gold fromwater solutions by crude oil and distribution of gold in group components of crude oil;（iii） mobilization andtransportation of gold with generation and migration of petroleum of oil shales;（iv） kinetics of the reductionof Au<sup>3+</sup> to Au<sup>0</sup> by bitumen.The results show that organic matter may play an important role in formation ofsome sedimentary-reworked gold ore deposits by promoting leaching,migration,reduction and precipitationof gold.
基金
supported by the National Natural Science Foundation of China.
