摘要
近年来对卡林金矿带上勘查工作,在其西北端和深部发现并勘探了新的超大型金矿床.延伸了卡林金矿带的范围.讨论了超大型金矿床的地质特征.其主岩为不纯碳酸盐或细屑岩,成矿与中酸性火成岩,新生代火山岩有关,并且与板块构造的演化有关.提出卡林型金矿与裂谷作用有关的认识.
Through the exploration in Carlin Trend Gold Belt recently, several super-large gold deposits were descovered at depth in some old mines and in the north-western end of the belt, and the range of the belt was extended. In this paper, the geological characteristics of the super-large gold deposits were discussed. It shows that the host rocks are impure carbonate rock or fine-grained clastic rocks, the mineralisation is related to intermediate-acidic intrusive rocks and Cenozoic volcanic rocks. It is suggested that the metallogenesis of the super-large gold ore deposits are related to the evolution of plate tectonics, and the formation of Carlin trend gold ore deposits are related to rifting.
出处
《矿产与地质》
1991年第1期28-32,共5页
Mineral Resources and Geology
关键词
金
矿床
卡林型
勘探
裂谷成矿
Glod deposit, Carlin Trend, exploration of gold deposits, rift.
