The Shitoukengde Cu-Ni deposit is located in the eastern part of the East Kunlun Orogenic Belt (EKOB). The overall complex underwent emplacement into the surrounding rock, including the gneiss and marble. The ore-bodies exist in complex I, which is composed of peridotite, pyroxenite, and gabbro. The petrogeochemical characteristics of the rocks show that the m/f values range from 1.93 to 5.97, and the Fe³⁺/ΣFe ratios of the spinel are < 0.3, indicating that the Shitoukengde complexes have the potential to form a Cu-Ni ore deposit. Based on the evidence of marble and gneiss xenoliths, there are higher CaO and Al₂O₃ contents in the peridotite and pyroxene, there are Nb and Ta depletions, in the Shitoukengde; these results indicate that the ore-forming parental magma has been obviously contaminated by crustal material during the evolution process and that the materials responsible for the contamination mainly originated from the middle-upper crust. The mafic-ultramafic complex, which is closed to marble, has higher CaO and Al₂O₃ contents; higher (⁸⁷Sr/⁸⁶Sr)_i values and lower Ni contents; thus, it is reasonable to infer that the Shitoukengde mafic-ultramafic rocks assimilated some marble, and the contamination of marble without sulfide suppresses the sulfide saturation. The pyroxenite with better mineralization is mainly orthopyroxene, and the increase in the sulfur isotope values in the pyroxenite and peridotite is accompanied by an increase in the Ni content; these results suggest that the SiO₂ and S of biotite-plagioclase gneisses, especially the S addition, were important for the Shitoukengde intrusion to reach sulfide saturation. The whole-rock Ni content in the peridotite shows a positive relationship with the FeO content of spinel, indicating that the crystallization of spinel has little effect on sulfide saturation. The capable of crystallizing olivine with Fo content as high as 89.3 mol% and olivine Fo value exhibits a positive relationship with the olivine NiO content, indicating that olivine fractional crystallization did not play a significant role in sulfide saturation. The δ³⁴S_V-CDT value of the giant Xiarihamu deposit is much higher than that of Shitoukengde. The degree of crustal S contamination is probably responsible for the difference in the scale and ore grade of the Cu-Ni sulfide deposits in the East Kunlun area. The above indicators could guide the exploration and evaluation of similar deposits in the EKOB.

石头坑德铜镍矿床位于东昆仑造山带（EKOB）东部。整个建筑群都被放置到周围的岩石中，包括片麻岩和大理石。矿体存在于复合体I中，复合体I由橄榄岩，辉绿岩和辉长岩组成。岩石的岩石化学特征表明，m / f值范围为1.93至5.97，尖晶石的Fe ³⁺ /ΣFe比<0.3，表明石头坑德络合物具有形成Cu-Ni矿床的潜力。 。根据大理石和片麻岩异岩的证据，CaO和Al ₂ O ₃含量较高石头坑德中橄榄岩和辉石中的Nb和Ta耗尽。这些结果表明，成矿的母岩浆在演化过程中已明显被地壳物质污染，而造成污染的物质主要来自中上地壳。镁铁质-超镁铁质复合物，不接触大理石，具有较高的CaO和Al ₂ O ₃含量。更高（⁸⁷ Sr / ⁸⁶ Sr）_i值和较低的镍含量；因此，可以合理地推断出石头坑德镁铁质-超镁铁质岩石吸收了一些大理石，并且不含硫化物的大理石污染抑制了硫化物的饱和。矿化较好的辉石岩主要是邻苯二茂铁，辉石岩和橄榄岩中硫同位素值的增加伴随着镍含量的增加。这些结果表明SiO ₂黑云母斜长片麻岩的S和S，特别是S的添加，对于石头坑德入侵达到硫化物饱和非常重要。橄榄岩中整个岩石中的镍含量与尖晶石的FeO含量呈正相关，表明尖晶石的结晶对硫化物饱和度影响很小。Fo含量高达89.3 mol％的橄榄石的结晶能力和橄榄石的Fo值与橄榄石的NiO含量呈正相关，表明橄榄石分步结晶在硫化物饱和中没有显着作用。的δ ³⁴小号_V-CDT下阿里哈木矿床的巨大价值远高于石头坑德。地壳S污染程度可能是造成东昆仑地区Cu-Ni硫化物矿床规模和矿石品位差异的原因。上述指标可以指导EKOB中类似矿床的勘探和评估。