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许多矿床由于不能选出可以代表成矿时代的含K矿物或含U矿物,传统K-Ar法、Rb-Sr法和U-Pb法等定年方法对这类矿床定年就非常困难,甚至不可能.而解决成矿年龄,对于进行矿床的对比研究、总结成矿规律和进一步指导找矿是非常重要的.那么,如何解决成矿年龄测定问题呢?最近十多年来,地质年代学家把注意力转向流体包裹体的同位素年龄测定,为研究矿床的成矿年龄开辟了新途径.特别是高精度的~(40)Ar-~(39)Ar计时技术,能够在一份样品上同时获得~(40)Ar-~(39)Ar年龄谱和等时线图解,近几年来倍受重视,Turner和王松山利用该技术,
Many deposits are difficult or even impossible to date for such deposits due to the inability to select K-bearing minerals or U-bearing minerals that represent the age of the mineralization. Conventional K-Ar, Rb-Sr and U-Pb dating To solve the problem of mineralization age determination, it is very important to solve the problem of metallogenic age.It is very important for geological geologists The determination of isotopic ages of fluid inclusions has opened up new avenues for studying the metallogenic age of the ore deposits, especially the high-precision ~ (40) Ar- ~ (39) Ar timing technique, which can be simultaneously obtained on one sample ~ (40) Ar- ~ (39) Ar age spectrum and isochronism diagram in recent years, much attention, Turner and Wang Songshan use of this technology,