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中文摘要：
为探讨老寨湾金矿床的成矿物质来源，分析矿床成矿地质特征分析研究，岩矿石的稀土微量元素地球化学特征以及S、Pb同位素组成特征分析研究，结果显示，围岩、贫矿石和富矿石微量元素比值蛛网图型式基本一致，推断矿石中的Au主要来源于围岩。富矿石稀土总量低，正铕异常，其形成与岩浆热液作用有关。矿石硫同位素组成稳定，无塔式分布，￡^34S值为3．001‰～7．800％。，属混合硫。矿石铅同位素组成稳定，为正常铅，通过铅同位素图解可判断矿石铅主要来源于上地壳。
英文摘要：
The Laizhaiwan gold deposit is located in the northern rim of the Xichou arch of the Wenshan Funing fault-fold bundle at the combining site of the western Yangtz platform and the Cathaysia block. The sources of oreforming metal material were discussed on the basis of the analyses of ore forming geological conditions in this deposit, trace elements, REE and S, Pb isotopic compositions of this deposit. The comparison plots of trace element features of rocks and ores were almost same, indicating that Au in ores mainly came from rocks. The content of to tal REE of ores was low with an Eu positive anomaly. The formation of ores may be related with magmatic hydrothermalism. The ￡^34S composition showed a no tower-shaped distribution and varied in a narrow range of 3. 001‰～47. 800‰, indicating mixed sulfur. The Pb isotopic composition of ore was stable, indicating normal lead. Analy ses of the scheme of Pb isotopic indicated that Pb in ore mainly came from the upper crust.
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