During the precipitation of the gold,the pre-existing light hydrocarbons in anticlines and domes might be important reductants to gold precipitation. 在熱液礦床的沉淀階段，背斜或穹隆等古石油構造圈閉中儲存的烴類(lèi)是金從熱液中沉淀的重要還原劑。
Mixing of hot fluid with cold fluid was responsible for precipitation of native copper.The native copper deposit is confined to the top of lava flow. 在流體運移過(guò)程中，熱冷兩種流體混合，發(fā)生了冷卻作用和水巖反應，為低硫的含銅流體沉淀自然銅提供了必需的還原環(huán)境。
