论文部分内容阅读
磷铁矿(Fe_(2.0939)Ni_(0.0746)Cr_(0.0215)P发现于我国某地含铂硫化铡镍矿床的原生带中。该矿物是磷铁矿Fe_2P-磷镍矿Ni_2P系列的端员组分矿物,也是地球上首次发现的一种含铁、磷的金属互化物矿物。 一、地质产状及伴生矿物 磷铁矿产于硫化铜镍矿床的原生矿中,该矿床位于阿拉善台地南部边缘,祁品-贺兰山字形构造前孤之西翼,含矿超基性岩呈较陡的单斜岩墙,大致以10°交角不整合侵入于前震旦纪蛇纹石化大理岩和混合岩化片麻岩中。含矿岩体长5公里,倾向西南,倾角70°左右,地表最大宽度近600米左右,属于铁质超基性岩类型,纯橄榄岩-二辉橄榄岩系列。主要由橄榄石和辉石组成的超基性岩,仅少部分岩石中含数量不多的斜长石。含矿岩体分异良好。含铂硫化铜镍矿矿体位于超基性岩体中下部,产状与含矿
Phosphorite (Fe_ (2.0939) Ni_ (0.0746) Cr_ (0.0215) P) was found in the primary zone of the platinum-bearing sulphide nickel deposit in a certain region of China, which is a member of Ni_2P series in the Fe_2P- Minerals are also the first iron- and phosphorus-containing intermetallic minerals discovered on Earth I. Geological production and accompanying minerals Phosphorite is produced in the primary ore of copper sulphide-nickel deposits located on the southern margin of the Alxa platform , QiPing - HeLanShan zigzag structure before the solitary West Wing, ore-bearing ultramafic rock was steep monocline rock wall, roughly 10 ° angle of incongruence intrusion into the former Sinian serpentinized marble and mixed rock tablets Gneiss. The ore-bearing rock body is 5 kilometers long, with a southwest inclination of about 70 ° and a maximum surface width of about 600 meters. It belongs to the ultramafic rock type, dunite-lherzolite series and is mainly composed of olives Rocks and pyroxenes, and only a few of them contain a small amount of plagioclase.The mineralized rock bodies are well differentiated.The ore bodies containing platinum-bearing Cu-Ni ore are located in the middle and lower parts of ultramafic rocks. Shape and containing ore