Dataset of lead isotope ratios of copper ores.

This dataset was compiled from the literature. All samples analyzed prior to 1980 are excluded, due to poorer precision before that date. The ores have been placed in groups corresponding to countries or important regions. In most papers the ratios 208Pb/206Pb, 207Pb/206Pb and 206Pb/204Pb were given. The ratios 208Pb/204Pb and 207Pb/204Pb shown have been calculated from the other values. All samples which were published with only two isotope ratios are excluded.本数据集基于文献汇编而成。由于1980年前的分析精度较低，故排除所有1980年前的分析样品。矿石样品已按国家或重要区域进行分组。多数文献中均给出了208Pb/206Pb、207Pb/206Pb及206Pb/204Pb三种同位素比值。本次数据集所呈现的208Pb/204Pb与207Pb/204Pb比值，均由上述其他比值计算得到。仅报道两种同位素比值的样品均已被排除。