摘要
华北地台北缘金矿资源潜力巨大。区域潜在含金性是形成金矿化集中区的首要前提,通过二次活化再成矿是金矿成矿的主要机制,在成因上与太古代层状岩系有关,类型和时代各异的一系列金矿床构成了地台区特有的金矿床系列。
The gold resources show a great potential on the northern margin of North China platform. An investigation on the trace gold and S & P_b isotopes indicate that the metallogenesis of gold has a notable inheritance. The auriferous regional potential is a main prerequisite for forming the concentration of gold. The formation of granitic intrusions and ductile shear belts is a process for moblization of gold in the source beds. It is hard to form auriferous fluid for the normal magmatic crystallization diffferentiation. The second metallogenesis carried out by the second moblizing exhibits the main ore-forming mechanism of the endogenic gold deposits. A unique gold deposit system consists of a set of gold deposits related genetically to the Archaean greenstone and phanerozoic granitic rock in the platform.
出处
《吉林地质》
1991年第3期1-11,共11页
Jilin Geology
关键词
金矿
资源
金矿化
成矿
华北地区
North China platform Concentrated area of gold mineralization Potential gold-bearing character Metallogenic inhertance Tectonic dynamic metallogenesis
