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中国东部新生代碱性玄武岩中产出的巨晶、辉石岩和橄榄岩等地幔捕虏体内硫化物熔体包裹体的矿物组成不尽相同，反映了它们成因上的差异巨晶中除有磁黄铁矿相的硫化物熔体包裹体外还有一些磁黄铁矿士黄铜矿上镍黄铁矿共生的硫化物熔体包裹体这反映它们是在成分接近于上地幔硫化物平均组成的硫化物液滴逐步冷却过程中形成，即首先在1000℃以上的高温晶出单硫化物固溶体（MSS），然后在大约850℃晶出黄铜矿（固溶体），最后在610—300℃下由MSS中溶离出镍黄铁矿辉石岩中硫化物熔体包裹体有磁黄铁矿和镍黄铁矿，而橄榄岩中主要为镍黄铁矿这表明地慢部分熔融造成残余的橄榄岩中硫化物包裹体富Ni，生成镍黄铁矿；而在部分熔融期间作为堆晶产出的辉石岩变得相对贫Ni，可以生成磁黄铁矿．另外，Ni在橄榄石和辉石矿物中分配系数的不同也许是另一个原因河北汉诺坝、福建明溪和闽清的二辉橄榄岩中出现的硫化物都是镍黄铁矿，也表明它们经历过地幔部分熔融.
The mineral composition of sulfide melt inclusions in mantle xenoliths such as megacrysts, pyroxenites and peridotites produced in the Cenozoic alkaline basalts of East China are different, reflecting their genetic differences except for Sulfide melt inclusions in pyrrhotite inclusions There are also some sulfide melt inclusions in pyrrhotite chalcopyrite-like pentagonal pyrites that reflect their compositional composition near the average composition of the upper mantle sulphides (MSS) is first crystallized at a high temperature above 1000 ° C. and then chalcopyrite (solid solution) is crystallized at about 850 ° C. and finally at 610-300 ° C. Sulfide melt inclusions from pyroxene in MSS are pyrrhotite and pentlandite, whereas peridotite is mainly pentlandite, suggesting that the slow partial melting results in residual The sulphide inclusions in peridotite are enriched in Ni and produce pentlandite, while pyroxene, which is produced as a heap during partial melting, becomes relatively poorly depleted in nickel and can form pyrrhotite. In addition, the difference in the partition coefficient of Ni in olivine and pyroxene may be another reason that the sulfides found in the Hannuoba, Mingxi, and Minqing reservoirs in Hebei Province are all pentlandite and also indicate that they Experience mantle partial melting.