Geological characteristics and mineralization setting of the Zhuxi tungsten (copper) polymetallic deposit in the Eastern Jiangnan Orogen
Abstract
江西朱溪白钨(铜)多金属矿是近年发现的一个特大型矿床,发育在富含钨铜元素的新元古代泥砂质岩石基底之上,产在燕山期花岗岩与石炭-二叠纪灰岩的接触带.与矿化有关的花岗岩主要是等粒状、中-粗粒状花岗岩和花岗斑岩.存在矽卡岩白钨(铜)矿和花岗岩白钨矿两种矿化类型,前者规模大,品位富,后者规模小,品位低.在塔前-赋春盆地,其NW边界呈逆断层、SE边界呈角度不整合与元古代基底接触,而石炭-二叠纪多个岩组中灰岩的钨铜元素含量都很高.矿区外围与矿区内花岗岩类的主量元素含量差别不大,其A/CNK值均>1.1,属富钾的强过铝质花岗岩.在微量元素上,矿区内花岗岩比外围花岗岩的 δ Eu值更小,更具显著的Eu负异常,富集Rb, U, Ta, Pb和Hf,亏损Ba, Ce, Sr, La和Ti,属于演化程度更高的高分异S型花岗岩.受流体作用的影响,矿区内岩体硫化物矿化明显, SO 3 平均含量0.2%.和外围岩体相比,矿区内花岗岩 δ...
Paper Details
Title
Geological characteristics and mineralization setting of the Zhuxi tungsten (copper) polymetallic deposit in the Eastern Jiangnan Orogen
Published Date
Oct 30, 2015
Journal
Volume
59
Issue
4
Pages
803 - 823
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