微细粒浸染型金矿的构造动力成矿作用研究——以西秦岭巴西金矿为例  

STUDY ON TECTONIC DYNAMIC ORE MINERALIZATION OF FINE DISSEMINATED TYPE OF GOLD DEPOSIT ——EXAMPLE AS BAXI GOLD DEPOSIT IN WEST QINLING

作　　者：杜子图 吴淦国 王义强[1] 

机构地区：[1]长春科技大学地质系

出　　处：《现代地质》1998年第1期75-80,共6页Geoscience

基　　金：地质矿产部地质力学开放研究实验室项目;地质行业科学技术发展基金

摘　　要：成矿是一个复杂的过程，而构造作用及其动力条件贯通于成矿的整个过程。巴西金矿是西秦岭构造成矿带内新发现的一个发育于三叠系浊流复理石沉积建造中具有潜在工业价值的金矿床，该金矿床的形成与断裂构造系统的时空演化有紧密的成生联系。根据对巴西矿田及其外围区域构造演化和金矿化作用的多手段、多方法、多尺度的综合研究，作者认为巴西金矿属典型的构造改造型金矿，并探讨了在构造动力条件控制下矿液的运移势和矿液流向，建立了构造动力成矿模式。Ore mineralization is a complex process, in this process tectonic movement and tectonic dynamic conditions are the key. Baxi gold deposit, a fine disseminated type of gold deposit, was newly founded in west Qingling tectonic mineralization belt, which was formed in Triassic turbidite strata and is with potential industrial value. There is a close relationship between the formation and orientation of gold deposit and the time space evolution of fault structural system. On the basis of studying regional tectonic evolution, ore field structure and gold mineralizing controlled by fault zones with multiple method and multiple scale, it is suggested that Baxi gold deposit is a typical gold deposit of tectono reformed type. Meanwhile the migration potential of ore forming fluid and its migration direction controlled by tectonic dynamic conditions are discussed, and the model of tectonic dynamic mineralizing is built.

关 键 词：金矿床 微细粒浸染型 构造动力 成矿作用 

分 类 号：P618.510.5[天文地球—矿床学] P551[天文地球—地质学]