| 水热条件下黄铁矿片、板状晶体的微结构 |
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| 引用本文： | 宋丹,黄菲,陈琳,李光禄,林加磊,李建源,董宇,成秋明,王永钱.水热条件下黄铁矿片、板状晶体的微结构[J].吉林大学学报(地球科学版),2012(4):1084-1089. |
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| 作者姓名： | 宋丹 黄菲 陈琳 李光禄 林加磊 李建源 董宇 成秋明 王永钱 |
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| 作者单位： | 东北大学分析测试中心;东北大学资源与土木工程学院;中国地质大学地质过程与矿产资源国家重点实验室 |
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| 基金项目： | 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) |
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| 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。
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| 关 键 词： | 水热法 黄铁矿 微结构 生长晶面 生长方向 |
Microstructure of Sheet and Flake Pyrite Crystals in Hydrothermal Conditions |
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| Song Dan,Huang Fei,Chen Lin,Li Guang-lu,Lin Jia-lei,Li Jian-yuan,Dong Yu,Cheng Qiu-ming,Wang Yong-qian.Microstructure of Sheet and Flake Pyrite Crystals in Hydrothermal Conditions[J].Journal of Jilin Unviersity:Earth Science Edition,2012(4):1084-1089. |
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| Authors: | Song Dan Huang Fei Chen Lin Li Guang-lu Lin Jia-lei Li Jian-yuan Dong Yu Cheng Qiu-ming Wang Yong-qian |
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| Institution: | 1.The Analytical and Testing Center,Northeastern University,Shenyang 110819,China 2.College of Resources and Civil Engineering,Northeastern University,Shenyang 110819,China 3.State Key Laboratory for Geological Precesses and Mineral Resources,China University of Geosciences, Wuhan 430074,Beijing 100087,China |
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| 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. |
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| Keywords: | hydrothermal method flake pyrite microstructure growth plane growth direction |
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