摘要
根据CO2的形成条件及其与Au的配合能力,金成矿系统矿物流体包裹体的气相成分,有代表性的金矿物的化学成分,具成因意义的共、伴生矿物,认为金成矿与CO2相关性的实质是CO与成矿物质形成羰基配合物、羰基氢配合物迁移至地壳浅部,由于温度、压力骤降,fO2剧增,上述配合物分解(CO、H2逃逸,氧化)形成金矿物沉淀富集成金矿床。
The formation condition of CO_2 and its coordinate ability with Au, gaseous phase component of mineral fluid inclusion in gold mineralization system, chemical composition of the typical gold mineral, and coexisting and accompanying mineral that have genetic significance show that the implication of the correlatebility between gold mineralization and CO_2 is O_2 fugacity speedily increase caused by the temperature and pressure decrease abruptly because the carbo complex and carbo hydrogen complex formed by CO and metallogenic matter move to the shallow of the crust. The decomposition of the complex (CO and H_2 escape and oxidation) formed de gold mineral sedimentation and enriched into gold deposit.
出处
《黄金地质》
2004年第2期8-16,共9页
Gold Geology
