青海督冷沟铜钴矿床地质特征及成矿条件

Geological Characteristics and Metallogenic Conditions of Duolanggou Copper and Cobalt Deposit in Qinghai Province

青海督冷沟铜钴矿床具有非常突出的岩浆活动,不仅期次多,而且时间跨度非常长。岩性呈现过渡特征,以时代的早晚从中基性过渡为酸性;区内岩浆活动主要以印支期以及华力西期尤为突出。晚古生代岛弧环境是其形成的主要环境,区内成矿与地质的影响关系密切,赋矿地层主要为绿泥绢云母千枚岩,该区成矿物质由于构造作用的影响不断发生迁移富集,最终成矿。结合该矿地质特征,对其成矿条件予以详细探讨。

Dulengou copper and cobalt deposit in Qinghai province has its prominent magmatic activities,not only with many periods,but also with a long-time span.The lithology is transitional,and it is acidic from time to time.The magmatic activities in the area are mainly in the Indosinian period and the Walixi period.Late Paleozoic island of arc environment is the formation of the main important environment,closely-related to mineralization in the area and the influence of geology,including ore formation are mainly chlorite sericite phyllite.The ore-forming materials are happening because of the influence of the structure function migration enrichment and mineralization in the end.The metallogenic conditions of the mine are discussed in detail according to its geological characteristics.