中文摘要：

Mafic-ultramafic 建筑群在在中央 JinlinProvince 的 Hongqiling 是普遍的， NE 中国。Hongqiling 建筑群包括辉岩，橄榄石 websterite， lherzolite，斑粝岩和 leucogabbro。基于最近的 geochronological 结果，这些侵入产出大约 216 妈的锆石 U-Pb 年龄，暗示那他们在晚三叠纪的时期的 emplaced 并且 mafic-ultramafic 建筑群是在起源的 post-orogenic。这些年龄与在区域的 A 类型花岗石的炮兵阵地是同时代的，但是比 syn-orogenic graniticmagmatism 稍微年轻。父母岩浆的作文与高 MgO 在结晶的积累的橄榄石的使平衡期间是玄武岩的，并且它来自弄空或少年石版印刷球的披风，根据痕量元素和 Sr-Nd 同位素的结果。外壳的材料的数量污染了 magmatic 来源，暗示 mafic-ultramafic 岩石从导出外壳、导出披风的岩浆的混合产品发源。因此， magmatic 来源被外壳的材料的数量污染，并且随后的水晶分别导致了 Cu-Nimineralization。动态分析显示在北方中国古地台 andJiamusi 山岳的碰撞以后，石版印刷球的分层在期间造山运动以后导致了起来岩流圈并且团并且在导出披风的岩浆的 plating 下面侵入的 welling ，它由于导出披风的岩浆并且下地壳的部分融化导致了主要 mafic-ultramafic 岩浆的形成。这结果建议 mafic-ultramafic 建筑群属于在 post-orogenic 期间演变，并且他们作为在 post-orogenic 扩展环境存在的 mafic-ultramafic 塘群被暴露那处理的一间典型地重要的 magmatic 套房。Italso 暗示 orogenic 过程在这个地区性的地质的背景最终完成了。在 Xing 的 mafic-ultramafic 建筑群的 Thewidespread 出现“一 -- 在 NEChina 并且在在北 Xinjiang 的 Altay-Tianshan-Junggar Orogenic 的蒙古 Orogenic 显示 maficintrusions 是在 post-orogenic 过程期间演变的一间重要 magmatic 套房。这 mafic 岩浆的部分能在 plated 下面有下地壳，并且当热为 associatedlate 阶段采购花岗石的岩浆?

英文摘要：

Mafic-uitramafic complexes are widespread in Hongqiling in central Jiulin Province, NE China. The Hongqiling complex comprises pyroxenite, olivine websterite, lberzolite, gabbro and leucogabbro. Based on the latest geochronological results, these intrusions yield a zircon U-Pb age of about 216 Ma, implying that they emplaced in the late Triassic period and that the mafic-uitramafic complexes are post-orogenic in origin. These ages are coeval with the emplacement of A-type granites in the area, but slightly younger than syn-orogenic granitic magmatism. The composition of the parent magma during the equilibration of the accumulated olivine crystallizing is basaltic with high MgO, and it comes from depleted or juvenile lithospheric mantle, according to the results of trace elements and Sr-Nd isotopes. Amount of crustal material contaminated the magmatic source, implying that the mafic-uitramafic rocks originate from the mixing product of crust- and mantle-derived magma. Therefore, the magmatic source was contaminated by an amount of crustal material, and the subsequent crystal fractionation resulted in the Cu-Ni mineralization. Dynamic analyses indicate that, after the collision of the North China Craton and Jiamusi Massif, the lithospheric delamination during post-orogeny resulted in the upwelling of asthenosphere and the intruding of the mass and underplating of the mantle-derived magma, which led to the formation of the primary mafic-uitramafic magma due to the mantle-derived magma and partial melting of the lower crust. This result suggests that the mafic-uitramafic complexes belong to a typically important magmatic suite that evolved during post-orogenic processes, and they were exposed as maficultramafic dyke swarms that existed in the post-orogenic extension environment. It also implies that the orogenic process finished ultimately in this regional geological setting. The widespread occurrence of mafic-uitramafic complexes in the Xing＇an-Mongolia Orogenic Belt in NE China and in the Altay-Tianshan-Junggar O