【摘要】 幔枝构造是地幔热柱多级演化的三级单元,其对内生矿产的成矿控矿作用十分明显。文章归纳了幔枝构造的基本特征,并在此基础上将河北省划分成5个幔枝构造区。提出幔枝构造核部、主次拆离带及上置断陷盆地的成矿控矿规律,总结了"内金、外铜-银-铅锌"的成矿格局,以期为本区进一步找矿提供思路。同位素数据统计认为:成矿物质主要源自地球深部,通过地幔热柱多级演化迁移到近地表并逐步就位、成矿。更多还原

【Abstract】 Mantle branch is the third-grade tectonic unit during multiple evolution of mantle plume. Obviously it dominates the mineralization of endogenic deposits. This paper summarized the characteristics of mantle branch and distinguished five mantle branch structures within Hebei province, proposed the mineralization models in the mantle branches core, dominant detachment zones and overlaying fault basins. It also summarized the mineralization pattern of ”inside Au and outside Cu-Ag-Pb-Zn”. The purpose of the study is to provide a new idea for ore prospecting. Isotopes data in north Hebei province show that ore-forming material, driven from the deep earth, arrives near earth surface and is progressively taken a place to deposit, with multistage evolution of the mantle plume.更多还原