| 滕浪,陈守余,赵江南,陈俊霖,胡振,田光礼.都龙锡锌多金属矿床稀土元素地球化学特征及指示意义[J].地质找矿论丛,2018,33(4):507-516 |
| 都龙锡锌多金属矿床稀土元素地球化学特征及指示意义 |
| Geochemical characteristics of REE of Dulong Sn-Zn polymetallic deposit and the indicative significance |
| 投稿时间：2017-06-30 修订日期：2017-10-17 |
| DOI：10.6053/j.issn.1001-1412.2018.04.002 |
| 中文关键词: 都龙锡锌多金属矿 稀土元素 成矿物质来源 滇东南地区 |
| 英文关键词:Dulong Sn-Zn polymetallic deposit rare earth elements ore-forming material source Southeastern Yunnan |
| 基金项目:国家自然科学基金青年科学基金项目（编号：41302065）资助。 |
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| 中文摘要: |
| 都龙锡锌多金属矿床属于滇东南有色金属矿产带的重要组成部分，主要矿石类型为锡石硫化物—矽卡岩型，化学成分和矿物组合比较复杂，具有多期成矿的特点。为了进一步了解矿区成岩成矿过程，本文对该区花岗岩、大理岩、矽卡岩、矿石和片岩的稀土元素特征进行了系统研究，结果表明：区内花岗岩属于地壳硅铝层部分熔融进而通过结晶分异作用形成的复式花岗岩，成矿物质来源于地壳深部岩浆；各元素特征和稀土元素变异图表明矿石和矽卡岩、花岗岩具有同源性；矿石具Eu正异常，其反映成矿过程中有高温流体的参与，形成于氧化环境。 |
| 英文摘要: |
| The Dulong Sn-Zn polymetallic deposit is an important part of the Southeast Yunnan nonferrous metal ore belt. The skarn cassiterite sulfide ore is dominated with complex chemical composition and mineralogy and multi-ore-forming stages. In order to further understaning the ore-forming and rock-forming process this paper studies systematically the REE characteristics of granite, marble, skarn, ore and schist in this area. The result shows that:①The granite belongs to complex granite formed by fractional crystallization from partially melted sialic layer of the crust and the ore-forming elements comes from deep crustal magma; ②According to characteristics of each element and the variation of rare earth elements ore, skarn and granite are cognate; ③The positive Eu anomaly of the ore reflects incorporation of the high temperature fluid in the ore-forming process and the ore formed under oxidation environment. |
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