在石英脉型黑钨矿体,尤其是厚大脉体中,黑钨矿分布很不均匀,群聚现象普遍,常形成条带状、囊状黑钨矿集合体(图1),矿工们称此种黑钨矿富集体为“砂包”(徐克勤等,1943;柳志青,1980)。砂包对矿体的品位和金属储量有重要影响。因此掌握砂包的赋存规律和成因对脉钨矿床的勘探和开采有重要实践意义。 In the quartz vein type black tungsten ore body, especially the thick veins, wolframite distribution is very uneven, cluster phenomenon is common, often form a banded, saccular wolframite aggregates (Figure 1), miners Such wolframite ore bodies are called “sand packs” (Xu Keqin et al., 1943; Liu Zhiqing, 1980). Sand packs have an important influence on ore grade and metal reserves. Therefore, it is of great practical significance to grasp the regularity and origin of sandbags for the exploration and exploitation of the vein tungsten deposit.