| 谢家东,钱汉东,李永徽,闵建平.山东平邑归来庄碲型金矿床中黄铁矿的矿物学特征研究[J].地质找矿论丛,2003,(4):237-242,248 |
| 山东平邑归来庄碲型金矿床中黄铁矿的矿物学特征研究 |
| MINERALOGY FEATURE RESEARCH OF PYRITE OF THE GUILAIZHUANG TELLURIUM-TYPE GOLD DEPOSIT, SHANDONG PROVINCE |
| 投稿时间：2003-03-17 |
| DOI：10.6053/j.issn.1001-1412.2003.4. 006 |
| 中文关键词: 归来庄 金矿床 黄铁矿 矿物学特征 山东省 |
| 英文关键词:Guilaizhuang gold-deposit pyrite mineralogy feature Shandong province |
| 基金项目:国家自然科学基金项目(49772101)资助。 |
| 作者 | 单位 | | 谢家东 | 马鞍山矿山研究院, 安徽, 马鞍山, 243004 | | 钱汉东 | 南京大学, 地球科学系, 江苏, 南京, 210093 | | 李永徽 | 马鞍山矿山研究院, 安徽, 马鞍山, 243004 | | 闵建平 | 马鞍山矿山研究院, 安徽, 马鞍山, 243004 |
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| 中文摘要: |
| 归来庄贫硫氧化型低温热液碲金矿床中黄铁矿形成于3个世代,不同世代黄铁矿的S/Fe均小于2,硫的质量分数平均值50.9%(小于标准值53.4%),显示出明显的硫元素匮乏。不同时期的黄铁矿在晶形上有较明显的差异,并出现环带、环边及交代环边等结构构造。随着成矿作用的不断进行,从成矿早阶段到晚阶段成矿热液中的硫由于硫化物的不断结晶而消耗,成矿热液中硫逸度持续降低,可供进入黄铁矿晶格的硫越来越少。成矿晚期,成矿热液中的砷替代硫大量进入黄铁矿的晶格中而形成与归来庄金矿床成矿作用密切相关的富砷黄铁矿,对该类型矿床具有找矿勘探的指示意义。 |
| 英文摘要: |
| Guilaizhuang Au deposit is a low sulfur tellurium oxidation deposit. Pyrite occurs in three generations and S/Fe ratios of all the generations are less than 2 and average of S(w) is 50.9%< the standard of 53.4% thus sulfuris poor. Pyrite crystal forms are varied with generations. They are characterized by ring riming and replacement ring and rim in texture and structure. With formation of the ore sulfides were crystallized continuously from the early to late ore-forming stages and sulfuris depleted and f(S) of ore fluid decreases continuously. In stead of S large quantity of As enter into lattice of pyrite forming the ore-luring mineral-As-rich pyrite in Guilaizhung As deposit. |
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