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| 贵州水银洞卡林型金矿床首次发现大量次显微-显微可见自然金颗粒 | |
| 引用本文： | 苏文超,张弘弢,夏斌,张兴春,胡瑞忠,周国富,夏勇.贵州水银洞卡林型金矿床首次发现大量次显微-显微可见自然金颗粒[J].矿物学报,2006,26(3):257-260. |
| 作者姓名： | 苏文超 张弘弢 夏斌 张兴春 胡瑞忠 周国富 夏勇 |
| 作者单位： | 1. 中国科学院,地球化学研究所,矿床地球化学国家重点实验室,贵州,贵阳,550002;中国科学院,广州地球化学研究所,边缘海地质重点实验室,广东,广州,510640 2. 中国科学院,地球化学研究所,矿床地球化学国家重点实验室,贵州,贵阳,550002 3. 中国科学院,广州地球化学研究所,边缘海地质重点实验室,广东,广州,510640 |
| 基金项目： | 贵州省科学技术基金，中国科学院知识创新工程项目，国家重点基础研究发展计划(973计划) |
| 摘 要： | 在贵州水银洞卡林型金矿床原生富矿石的一条含砷黄铁矿细脉中发现有100余粒次显微-显微自然金颗粒(0.1~6μm),并具有清晰的显微岩相学结构。提出了该类型金矿次显微-显微可见自然金颗粒的形成过程可能与含Au热液-岩石相互作用过程中含Fe碳酸盐矿物溶解释放Fe的大量硫化物化而导致热液中Au的过饱和有关,含Fe碳酸盐赋矿围岩是形成高品位大型卡林型金矿床最重要的控制因素之一。 |
| 关 键 词： | 次显微-显微自然金颗粒 形成机制 卡林型金矿 水银洞 贵州 |
| 文章编号： | 1000-4734（2006）03-0257-04 |
| 收稿时间： | 2006-06-11 |
| 修稿时间： | 2006年6月11日 |
Accumulation of Visible gold in the Shuiyindong Carlin-Type Gold Deposit |
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| FAN Ming-de,CHEN Tian-hu,LIU Jing-li,WANG Jian,SONG Yin-xian.Accumulation of Visible gold in the Shuiyindong Carlin-Type Gold Deposit[J].Acta Mineralogica Sinica,2006,26(3):257-260. | |
| Authors: | FAN Ming-de CHEN Tian-hu LIU Jing-li WANG Jian SONG Yin-xian |
| Abstract: | The possibility of Zn(II) removal from synthetic wastewater by layered double hydroxide(LDH) prepared in-situ was investigated experimentally.The LDH prepared in-situ by Zn(II),Mg(II),Al(III) coprecipitating with NaOH.The effects of pH,Mg(II)/Zn(II) molar ratio,reaction temperature and time on removal efficiencies of Zn(II) were studied when Mg(II) Zn(II)]/Al(III) molar ratio was 2.0.The efficiencies are found to be different significantly at the 0.05 level under different pH,the most effective efficiency occurs in the pH range of 9.0 to 11.0,removal efficiencies of Zn(II) from wastewater are more than 99%.Other factors exert no significant effects on removal efficiencies of Zn(II).The products were characterized by X-ray diffraction(XRD),which indicates that removal of Zn(II) from wastewater mainly occurs in the crystal formation stage as Zn-Mg-Al-LDH,with consideration of the characteristics of the in-situ method itself.Compared with conventional sedimentation treatment with NaOH,the in-situ method is more effective and suitable for a wider pH range. |
| Keywords: | layered double hydroxide(LDH) zinc wastewater removal efficiency |
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