摘要
印支－燕山期NNE向左行平移剪切带切割先成断裂系统，奠定了中国东南地区控矿断裂网络的格架。利用遥感手段建立的控矿断裂网络，主要由NNE向和NE向区域性主干断裂带组成。矿田定位于组成网络的两条或两条以上断裂带的复合部位，矿田间距为60－100km；矿集区定位于主干断裂突持的高应变挤压隆起区和拉分火山盆地。在矿田和矿集区范围内，大型金属矿床受一定类型的局部构造控制。
The NNE trending left strike-slip shear zones cut and displaced the pre-existed fault zonesin the Mesozoic (Indo-China and Yanshan peridos)time,as a result, the ore-controiling faultnetwork of Southeast China was found.The fault network, constructed by using remote sensing methods, mainly consists of 12NNE and 13 NE trending falut zonesOre fields (districts) of 100-400km2 in axea have localized to the intersections of two ormoe major ore-controiling fault zones with distance between themselves in range of 70 100km2,while ore concentration regions with area of 1000- 2000km2 are emplaced into theshear related and highiy deformed pressure uplifts and pull-apart volcanic basins, which, as arule, are limited two major parallel strike-slip fault zones. In the scope of ore fields and oreconcentration regions, major ore deposits are controlled by certain patterns of loral structure.
出处
《火山地质与矿产》
1997年第1期37-48,共12页
Volcanology & Mineral Resources
