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玉龙中酸性侵入岩带,实际是扩大了的“玉龙斑岩铜钼矿带”。它既包括含矿斑岩体,也包括所有同期侵入岩。据钾-氩同位素年龄测定结果,其成岩时代为喜山期。作者在参加科研协作项目的过程中,曾作过岩带的野外及室内工作。由于岩带中各岩体顶部均遭剥蚀,很少相互穿插,在成岩、成矿及其时空关系方面的演变规律,用一般地质方法很难加以解释。因此,本文试图应用岩石化学及副矿物资料,对该岩带岩浆活动与成矿作用的关系及其找矿意义,作了初步研究。
Yulong acid intrusion rock belt, is actually an enlarged “Yulong porphyry copper molybdenum belt ”. It includes both porphyry-bearing porphyries and all contemporaneous intrusive rocks. According to K-Ar isotopic age determination results, the diagenetic age is Himalayan period. The author participated in the field research and collaboration projects, has made Rock Band field and indoor work. Because the top of each rock mass in the rock belt is denuded and seldom interpenetrated with each other, the evolution law of diagenesis, mineralization and its space-time relationship can hardly be explained by general geological methods. Therefore, this paper attempts to apply the petrochemical and accessory mineral data, and makes a preliminary study on the relationship between the magmatism and mineralization in the rock belt and its significance for prospecting.