中山大学学报自然科学版 ›› 2011, Vol. 50 ›› Issue (6): 107-113.

• 研究论文 • 上一篇    下一篇

缅甸翡翠砾石中蓝雾和黑皮的成因探讨

闫薇薇1,2,王建华1   

  1. (1.中山大学地球科学系,广东 广州 510275; 2.广州番禺职业技术学院珠宝学院,广东 广州 511483)
  • 收稿日期:2011-04-07 修回日期:1900-01-01 出版日期:2011-11-25 发布日期:2011-11-25
  • 通讯作者: 王建华

Origin of the Blue Fog Zone and Black Crust of Myanmar Jadeite Jade Boulder

YAN Weiwei1,2, WANG Jianhua1
  

  1. (1.Department of Earth Sciences, Sun Yatsen University, Guangzhou 510275, China;2.Guangzhou Panyu Polytechnic, Guangzhou 511483,China)
  • Received:2011-04-07 Revised:1900-01-01 Online:2011-11-25 Published:2011-11-25

摘要: 通过对缅甸翡翠砾石产区地质背景、样品观察、矿物学及地球化学等分析,认为蓝雾以及黑皮是在沉积深埋成岩过程中,在有一定温度、压力和流体介质作用下形成的,硬玉的水解溶蚀和绿泥石的沉淀是蓝雾以及黑皮形成的主要原因,形成绿泥石的物质来源有来自硬玉水解溶蚀的组分和来自沉积层中的流体、填隙物中的Fe、Mg等元素的加入,有机质的存在可能促进了Fe、Mg等物质的迁移及沉淀作用。

关键词: 翡翠, 水岩作用, 蓝雾, 绿泥石, 成因

Abstract: The analysis on the geological background, sample observations, mineralogical and geochemical characteristics of Myanmar jadeite jade boulder indicates that the blue fog zone and black crust of the boulder are formed in dipositional diagenetic process under the conditions of certain temperature, pressure and fluid interaction. The hydrolysisdissolution of jadeite and precipitation of chlorite are the main causes of the formation of blue fog zone and black crust. The material sources of chlorite come from hydrolysisdissolution of jadeite,and Fe, Mg and other elements in fluid and sediments. The presence of organic matter may promote the migration and precipitation of Fe, Mg and other materials.

Key words: jadeite jade, water-rock interaction, blue fog, chlorite, origin

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