The zijinshan fluid system and the gonglang fluid system were driven by the stress of extrusion nappe onto the basin and the thermal driving force of magmatism . when the fluids cycling in the basin encountered the boundary of reduction - oxidation or underwent fluid mixing , phase separating and fluid boiling caused by fault - induced pressure reducing , the physical chemistry condition abruptly changed and mineralization then took place 在盆地兩側(cè)擠壓推覆構(gòu)造應(yīng)力及巖漿作用熱力驅(qū)動(dòng)下,紫金山背斜和公郎弧兩大流體系統(tǒng)的流體在盆地中運(yùn)動(dòng),當(dāng)遇到氧化還原界面或遭受流體混合、相分離及斷裂導(dǎo)致的減壓沸騰時(shí),因物理化學(xué)條件發(fā)生重大變化而導(dǎo)致成礦作用的發(fā)生。