摘要
Gold deposits in intrusive masses include the veinlet dissemination, quartz vein andveinlet dissemination + vein types . They are distributed in fracture zones along the endocontact zone of a batholith or in the centre and edge of a stock. The metallogenic epochs are Yenshanian, Hercynian, Archean, Proteredc and Himalaysn. The gold deposits are characterizedby a big difference in time span between gold mineralization and the formation of host masses.Ore-forming materials were derived from the masses and auriferous strata and ore-forming fluidscame from meteoric and formation waters. When circulating water was heated by ascendingheat flow, gold would be extracted, concentrated and transported from auriferous rocks andthen precipitated in the masses during the late tectonic movement. Finally gold deceits wereformed in the intrusive masses.
Gold deposits in intrusive masses include the veinlet dissemination, quartz vein andveinlet dissemination + vein types . They are distributed in fracture zones along the endocontact zone of a batholith or in the centre and edge of a stock. The metallogenic epochs are Yenshanian, Hercynian, Archean, Proteredc and Himalaysn. The gold deposits are characterizedby a big difference in time span between gold mineralization and the formation of host masses.Ore-forming materials were derived from the masses and auriferous strata and ore-forming fluidscame from meteoric and formation waters. When circulating water was heated by ascendingheat flow, gold would be extracted, concentrated and transported from auriferous rocks andthen precipitated in the masses during the late tectonic movement. Finally gold deceits wereformed in the intrusive masses.
关键词
金矿床
中国
成矿时代
成矿物质
矿床成因
gold ore type
time difference between gold deposits and the formation of masses
source of ore-forming materials
reworking metallogenesis
