中文摘要：

“小岩体成大矿”是对岩浆-流体成矿规律的科学总结，是找矿勘查的重要依据。笔者认为，中酸性小岩体成大矿的原因是在岩浆形成、演化过程中，小岩体比大岩体更容易富集成矿元素。更有利于成矿流体和物质运移，是更有利的成矿物质沉淀储集空间。

英文摘要：

The view of ＂small intrusions hosting large mineral deposits＂ scientifically summarized the features of magmatic- hydrothermal mineralizations, which has been evidenced to be an effective exploration criterion. However, why the small intrusions generally associate with large or giant mineral systems remain open to study. The author proposes that the small granitic stocks, compared to huge bath- oliths, are favorable for metal enrichment during magma generation and evolution, for fluid migration and metal transportation, and accommodating metal precipitation and accumulation.