广西姑婆山地区钨锡矿床地质特征及幔源物质参与成矿显示  

Geological Characteristics of Tungsten-tin Deposits and the Indication of Mantle Material Participating the Tungsten-tin Mineralization in Guposhan Region,Guangxi

作　　者：张诗启[1] 蔡明海[1] 彭振安[1] 徐明[1] 陈艳[1] 韩凤彬[1] 

机构地区：[1]广西大学资源与冶金学院,广西南宁530004

出　　处：《西北地质》2010年第1期86-97,共12页Northwestern Geology

基　　金：广西科技厅广西富贺钟钨锡矿集区壳幔成矿作用研究项目(桂科自0728024)

摘　　要：姑婆山地区钨锡矿床位于南岭钨锡成矿带西南缘,是我国重要的钨锡产地。区内有新路、水岩坝和珊瑚三个钨锡矿田,矿床类型多样。其中,锡锌硫化物型、黑钨石英脉型和钨锡石英脉型矿床较为典型,区内钨锡成矿与壳幔混源型花岗岩体和断裂关系密切。笔者在前人工作基础上,总结了区内主要钨锡矿田和典型矿床地质特征,认为钨锡矿化在空间上具有一定的分带性;通过对区内构造和矿床的D-O同位素、H e-A r同位素、Pb同位素、S同位素及流体包裹体分析,认为深大断裂可能为幔源物质上侵提供了通道,钨锡成矿与岩浆作用关系密切,幔源物质参与了区内钨锡成矿。Tungsten-tin deposits in Guposhan region is located in the southwest edge of Nanling metallogenic belt where is an important tungsten-tin producing area.There are three tungsten-tin ore fields： Xinlu,Shuiyanba,and Shanhu.the deposits are numerous in genetic type,of which the typical ones are tin-zincsulfide type,quartz veined tungsten type,and tungsten-tin quartz vein type.The researchers have done lots of researches on the diagenesis and mineralization in this region and believe that the W-Sn mineralization has a close relation with the fracture and the crust-mantle mixed granite in Guposhan region.Based on the previous research result and on summarizing the prime features of tungsten-tin ore fields and typical deposits,we conclude that there is an established metallogenic zoning of the W-Sn mineralization and believe the deep faults providing genious channels for the mantle substances by analyzing the hydrogen and oxygen isotopes,He-Ar isotopes,Pb isotopes,sulfur isotopes,and fluid inclusions of he main tungsten-tin deposits.W-Sn mineralization is intimate with magmatism.The study of isotopes of the main deposits shows that the mantle substance is involved in the tungsten-tin mineralization.

关 键 词：钨锡矿床 同位素 幔源物质成矿 姑婆山地区 

分 类 号：P618[天文地球—矿床学] P611[天文地球—地质学]