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广泛分布于云南老王寨金矿区的煌斑岩可分为新鲜（ 弱蚀变） 、蚀变、矿化三种， 虽然三种煌斑岩稀土含量范围、分配模式为相似的富轻稀土型， 但在ＬＲＥ／ＨＲＥ、ＮＬａ／Ｙｂ 等参数也存在一定的差异。新鲜煌斑岩稀土地球化学研究表明， 本区煌斑岩为富集地幔不同部分熔融程度的产物； 煌斑岩蚀变、矿化过程中稀土元素活动规律的质量平衡计算结果表明， 该区煌斑岩的蚀变流体和矿化流体均含有一定量的稀土元素， 这些流体主要为伴随煌斑岩岩浆活动过程中的地幔去气作用和岩浆去气作用的产物。
The lamprophyre widely distributed in the Laowangzhai gold deposit in Yunnan Province can be divided into three types: fresh (weak alteration), alteration and mineralization. Although the three types of lamprophyre have the same range of REE, the distribution pattern is similar to that of the light rare earth However, there are some differences in parameters such as LRE / HRE and NLa / Yb. The study on the rare earth porphyry rare earth geochemistry shows that the lamprophyre in this area is the product enriched in the melting degree of different parts of the mantle; the mass balance calculation of the law of activity of rare earth elements in the lamprophyre alteration and mineralization process shows that, The alteration fluids and mineralized fluids of porphyry both contain a certain amount of rare earth elements. These fluids are mainly the products of mantle degassing and magma degassing accompanied by magmatic activity of lamprophyres.