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狭义的班公湖—怒江成矿带的范围与班公湖—怒江洋盆残留的蛇绿混杂岩带一致,包括与超基性岩浆熔离作用相关的Cr,Fe,Ni等矿床;广义的班公湖—怒江成矿带包括缝合线南北两侧与班公湖—怒江洋俯冲、碰撞、碰撞后及陆内伸展作用有关的所有矿床和岩浆岩,其范围包括南羌塘地体南缘、班公湖—怒江缝合带、北—中拉萨地块的大部分区域,发育的矿床类型有斑岩型铜(金)矿、矽卡岩型铁(铜)矿、热液—蚀变岩型金矿和热液型钨矿等,涉及的动力学背景包括活动大陆边缘到板内的各个阶段。在2期重要的斑岩铜(金)成矿作用中,120~105 Ma BP矿床的形成与拉萨地体和南羌塘地体碰撞过程中深部俯冲洋壳物质的重熔有关,90~85 Ma BP矿床始于碰撞后阶段岩石圈地幔的底侵作用。一些关键的基础性科学问题,诸如大地构造背景(成矿环境)、岩浆作用特征、典型矿床成矿机制、矿床的保存与高原隆升之间的关系等,需要在今后的研究工作中予以关注。
The narrow range of Bangong Lake-Nujiang metallogenic belt is consistent with the ophiolitic melange belt remaining in the Bangong-Nujiang oceanic basin, including the Cr, Fe, Ni and other deposits related to ultramafic magmatism; The Bangong Lake-Nujiang metallogenic belt includes all ore deposits and magmatic rocks related to subduction, collision, post-collision and intracontinental extension of the Bangong-Nujiang Ocean on both sides of the suture. Its scope includes the southern margin of the southern Qiangtang terrane , Bangong Lake-Nujiang suture zone, and most of the northern-middle Lhasa block. The developed deposits include porphyry-type copper (gold) ore, skarn-type iron (copper) ore, hydrothermal- Type of gold and hydrothermal tungsten ore, etc., involving the dynamic background of the active continental margin to the various stages of the plate. During the important porphyry copper-gold mineralization in the second stage, the formation of the 120-105 Ma BP deposit is related to the remelting of deep-lying submarine oceanic crustal material during the collision between the Lhasa terrane and the southern Qiangtang terrane, The Ma BP deposit began with the underplating of the lithospheric mantle beneath the post-collision stage. Some key basic scientific issues, such as the tectonic setting (metallogenic environment), magmatic characteristics, the mineralization mechanism of typical deposits, the relationship between deposit preservation and plateau uplift, need to be paid attention to in the future research work .