广东怀集地区矽卡岩型铁多金属矿床同位素地球化学特征及其地质意义

冼源宏,詹华思,李健唐

Isotope Geochemical Characteristics and Geological Significance of Skarn Type Iron Polymetallic Deposit in Huaiji Area，Guangdong Province

Yuanhong XIAN,Huasi ZHAN,Jiantang LI

表3 怀集地区花岗岩钾长石及矿床硫化物Pb同位素组成分析结果

Table 3 Analysis results of Pb isotope composition of granite potash feldspar and sulfides in Huaiji area

矿床（或花岗岩）名称 样品编号 样品名称 Pb同位素比值 206Pb/204Pb 207Pb/204Pb 208Pb/204Pb 汶朗茶场铁多金属矿 DP191-TW2 磁黄铁矿 18.728 15.751 39.192 DP191-TW5 磁黄铁矿 18.671 15.755 39.121 DP191-TW10 黄铁矿 18.685 15.769 39.172 将军头铁多金属矿 DP201-TW3 黄铁矿 18.779 15.788 39.337 DP201-TW5 磁黄铁矿 18.788 15.747 39.234 DP201-TW12 方铅矿 18.402 15.623 38.637 格仔塘铅锌多金属矿 DP261-TW1 磁黄铁矿 18.827 15.746 39.295 DP261-TW2 黄铁矿 18.850 15.784 39.440 DP261-TW4 黄铁矿 18.849 15.797 39.454 DP261-TW8-b 方铅矿 18.885 15.799 39.506 横石铅锌多金属矿 D0112-TW-a 方铅矿 18.735 15.818 39.420 D0112-TW-4 黄铁矿 18.669 15.736 39.142 东坑铁矿 D0126-TW-2 黄铁矿 18.846 15.779 39.341 粗中粒含斑黑云母二长花岗岩 DP263-RZ3 钾长石 18.488 15.796 38.752 DP200-RZ1 钾长石 18.704 15.850 39.103 细粒含斑二云母碱长花岗岩 DP266-RZ1 钾长石 18.568 15.743 38.633 细粒少斑黑云母二长花岗岩 DP203-RZ1 钾长石 18.717 15.782 39.229 DP222-RZ1 钾长石 18.743 15.820 39.372 细中粒斑状角闪黑云二长花岗岩 DP225-RZ1 钾长石 18.766 15.839 39.398 DP245-RZ1 钾长石 18.811 15.805 39.351 细中粒斑状黑云母二长花岗岩 DP204-RZ1 钾长石 18.780 15.849 39.453 DP181-RZ2 钾长石 18.761 15.797 39.305 DP190-RZ1 钾长石 18.809 15.830 39.486 细中粒含斑黑云母二长花岗岩 DP202-RZ1 钾长石 18.788 15.817 39.403 细粒含斑—细粒黑云母二长花岗岩 DP171-RZ1 钾长石 18.736 15.785 39.328 细粒斑状黑云母二长花岗岩 DP230-RZ6 钾长石 18.796 15.783 39.292 花岗斑岩 DP250-RZ1 钾长石 18.804 15.808 39.387