| 山东大尹格庄金矿蚀变岩中矿体分布稳定性的动力学控制参量探讨 |
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| 引用本文： | 王庆飞,邓军,万丽,杨立强,龚庆杰.山东大尹格庄金矿蚀变岩中矿体分布稳定性的动力学控制参量探讨[J].岩石学报,2007,23(4):861-864. |
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| 作者姓名： | 王庆飞 邓军 万丽 杨立强 龚庆杰 |
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| 作者单位： | 1. 中国地质大学地质过程与矿产资源国家重点实验室,北京,100083;中国地质大学岩石圈构造、深部过程及探测技术教育部重点实验室,北京,100083
2. 广州大学数学与信息科学学院,广州,510006 |
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| 基金项目： | 国家自然科学基金;教育部跨世纪优秀人才培养计划;中国博士后科学基金;国家重点实验室基金 |
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| 摘 要： | 元素品位分布的相依性指标——赫斯特指数(Hurst指数)是矿体分布稳定性的动力学控制参量,重标极差(R/S)分析是相依性分析的有效方法。利用R/S分析对胶东大尹格庄金矿黄铁绢英岩内不同勘探线金元素品位系列的Hurst指数计算发现,Hurst指数主要介于0.59至0.89之间,均值为0.75,标准差为0.09,均大于随机行走经验Hurst指数的均值与标准差;计算结果说明元素品位分布存在正相关性,但由于受多种因素影响,其空间分布的相依性具有一定波动。元素品位分布的正相依性显示在特定的地质背景内,矿体连续分布或者间断出现,发育相对稳定,其与大尹格庄金矿的地质事实相吻合。
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| 关 键 词： | R/S分析 Hurst指数 大尹格庄金矿 胶东 蚀变岩型 |
| 文章编号： | 1000-0569/2007/023（04）-0861-64 |
| 修稿时间： | 2006-08-07 |
Discussion on the kinetic controlling parameter of the stability of orebody distribution in altered rocks in the Dayingezhuang gold deposit, Shandong |
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| WANG QingFei.Discussion on the kinetic controlling parameter of the stability of orebody distribution in altered rocks in the Dayingezhuang gold deposit, Shandong[J].Acta Petrologica Sinica,2007,23(4):861-864. |
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| Authors: | WANG QingFei |
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| Institution: | 1. State Key Laboratory of Geological Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China; 2. Key Laboratory of Lithosphere Tectonics and Lithoprobing Technology of Ministry of Education, China University of Geosciences, Beijing 100083, China; 3. School of Mathematics and Information Science, Guangzhou University, Guangzhou 510006, China |
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| Abstract: | Persistence exponent(Hurst exponent)of element grade distribution is the important controlling parameter for the stability of orebody distribution,and R/S analysis is a valid calculating method for Hurst exponent.The calculations of Hurst exponent of the series of Au grades in different exploration lines in the Dayingezhuang gold deposit via R/S analysis show the Hurst exponents range between 0.64 and 0.83,their mean value and variance are 0.75 and 0.09 respectively,which are both bigger than those of the empirical Hurst exponents of random walk.The results show the element distribution belongs to biased random walk and is positive persistence;yet the distribution fluctuates much in space affected by many geological factors.The positive persistence of element distribution in the beresitization altered rock suggests the development of orebodies is relatively stable and they appear continually or repeatedly in this specific geologic background,which corresponds to the geological facts in the Dayingezhuang gold deposit. |
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| Keywords: | R/S analysis Hurst exponent Dayin'gezhuang gold deposit Jiaodong Peninsula Altered rock type |
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