梵净山标水岩锡钨矿床地质特征及控矿因素

Geological Character and Ore-Controlling Factors of Biaoshuiyan Tin(Tungsten) Deposit in Fanjing Mountain

文章在介绍贵州梵净山标水岩锡钨矿床地质特征的基础上,论述了锡钨矿的赋存与富集是受白云母花岗岩、辉绿岩、构造和围岩蚀变的多重控制。认为成矿元素锡钨铜来源于下伏白云母花岗岩,将矿床工业类型列为含锡石、白钨矿电英岩脉型-云英岩脉型矿床;鉴于矿石内既有白云母、黄玉等气成标型矿物,又有电气石、锡石、黑钨矿等高温热液标型矿物,因此将矿床成因类型划属岩浆期后气成-高温热液型锡钨矿床。标水岩锡钨矿床与湖南、云南等锡钨矿床类比,成矿物质均来自花岗岩,控矿因素大同小异,但是形成时期却不相同,前者形成于武陵期,在国内实属少见,后者大都形成于燕山期,两者各具特色。

Based on character of Biaoshuiyan tin（tungsten）deposit in the Fanjing Mountain of Guizhou,This paper discusses that occurrence and accumulation of tin（tungsten）deposit are controlled by granite,diabase,structure and wall rock alteration.It is found that metallogenic element Tin,Tungsten and cuprum root in granite,its industrial type of ore deposit is listed as tourmalite vein type with tin ore,scheelite-greisen vein type deposit.The ore not only has pneumatolytic mineral such as muscovite,topaz and so on,but also has hypothermal deposit such as tourmaline,stannolite,wolframite,etc.so the genetic type of ore deposit is postmagmatic deposit-hypothermal deposit.We analogize Biaoshuiyan Tin（Tungsten）Deposit and Tin（Tungsten）Deposit in Hunan,Yunnan and so on.Their metallogenic material all originate in granitic.Ore-controlling factors are quite similar,but their metallogenic epoches are different.Metallogenic epoch of Biaoshuiyan Tin（Tungsten）Deposit is Wulingperiod,it is few to see in China.Metallogenic epoch of Tin（Tungsten）Deposit in Hunan,Yunnan is Yanshanperiod.They have different characteristic.