J4 ›› 2012, Vol. 42 ›› Issue (4): 1084-1089.

• 地质与资源 • 上一篇    下一篇

水热条件下黄铁矿片、板状晶体的微结构

宋丹1|黄菲2,3|陈琳1|李光禄1|林加磊2|李建源2|董宇1|成秋明3|王永钱3   

  1. 1.东北大学分析测试中心| 沈阳110819;
    2.东北大学资源与土木工程学院| 沈阳110819;
    3. 中国地质大学地质过程与矿产资源国家重点实验室|武汉430074,北京100087
  • 收稿日期:2011-10-12 出版日期:2012-07-26 发布日期:2012-07-26
  • 通讯作者: 黄菲(1959-),女,教授,博士,主要从事矿物学研究,Tel:024-83672595 E-mail:huangfei@mail.neu.edu.cn
  • 作者简介:宋丹(1961-)|女|副研究员|主要从事材料的微观组织结构与性能研究|E-mail:songdan66v@sina.com
  • 基金资助:

    国家自然科学基金项目(40872045,41172047);地质过程与矿产资源国家重点实验室开放课题(GPMR200906)

Microstructure of Sheet and Flake Pyrite Crystals in Hydrothermal Conditions

Song Dan1|Huang Fei2, 3|Chen Lin1|Li Guang-lu1|Lin Jia-lei2|Li Jian-yuan2|Dong Yu1|Cheng Qiu-ming3|Wang Yong-qian3   

  1. 1.The Analytical and Testing Center, Northeastern University, Shenyang110819, China;
    2.College of Resources and Civil Engineering, Northeastern University, Shenyang110819, China;
    3.State Key Laboratory for Geological Precesses and Mineral Resources|China University of Geosciences, Wuhan430074, Beijing100087, China
  • Received:2011-10-12 Online:2012-07-26 Published:2012-07-26

摘要:

利用透射电子显微镜(TEM)系统观测了黄铁矿片、板状晶体的微结构,发现在水热条件下生成的黄铁矿片、板状晶体具有正方形、矩形等多种形貌。其中,正方形较多,矩形次之,另可见到一些其他不规则形状。黄铁矿片、板状晶生长完好,未见缺陷。经测定多数四边形片状黄铁矿的两组边分别平行(010)和(100),其生长晶面为(001);个别四边形片状黄铁矿的两组边分别平行(010)和(101),其生长晶面为(101),矩形片状黄铁矿长轴生长方向为<001>。在水热条件下黄铁矿以多形貌出现,黄铁矿的片、板状晶体多数是沿(001)面生长的结果,(001)为黄铁矿片、板状晶体的主要二维生长面,并沿<001>方向扩展,构成了二维晶体。

关键词: 水热法, 黄铁矿, 微结构, 生长晶面, 生长方向

Abstract:

In this study we observe the microstructure of sheet and flake pyrite crystals systematically using the transmission electron microscope (TEM) and we discover that numerous pyrite morphologies such as square and rectangle etc can be formed under hydrothermal conditions. Pyrite sheet and flake crystals grow perfectly and have few internal defects. Our measurement indicates that most quadrilateral pyrite crystals have two sets of edges parallel to (010) and (100), and the growth crystal face is (001); and a few quadrilateral pyrite crystals have two sets of edges parallel to (010) and (101), and the growth crystal face is (101). The long axis of rectangular flake crystals growth direction is <001>. We hold that pyrite crystals have multiple morphologies, most sheet and flake crystals grow along the twodimensional growth plane (001), and extend along the <001> direction to constitute the twodimensional crystals.

Key words: hydrothermal method, flake pyrite, microstructure, growth plane, growth direction

中图分类号: 

  • P578.292
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