| 地球化学异常下限不同确定方法及合理性探讨 |
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| 引用本文： | 姚涛,陈守余,廖阮颖子.地球化学异常下限不同确定方法及合理性探讨[J].地质找矿论丛,2011,26(1):96-101. |
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| 作者姓名： | 姚涛 陈守余 廖阮颖子 |
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| 作者单位： | 中国地质大学(武汉)地质过程与矿产资源国家重点实验室,武汉,430074;中国地质大学(武汉)资源学院,武汉,430074 |
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| 摘 要： | 地球化学异常下限的确定对于圈定有利的成矿带,指导找矿非常关键.文章以甘肃省白银市白银矿区及外围水系沉积物Cu,Pb,Zn,Ag等4个元素为例,分别运用传统方法、归一化法和分形方法对数据进行处理.将3种方法圈定的异常进行比较发现:传统方法圈出的异常有限,主要是在矿区出现异常;而归一化法可以圈出更多的异常,并且与矿化集中区...
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| 关 键 词： | 地球化学 异常下限 归一化 分形 白银矿区 甘肃省 |
| 收稿时间： | 2009/9/25 0:00:00 |
| 修稿时间： | 2009/11/22 0:00:00 |
Methods for Determination of the Lower Geochemical Anomaly Limit and the Rationality Discussion |
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| YAO Tao,CHEN Shou-yu and LIAORUAN ying-zi.Methods for Determination of the Lower Geochemical Anomaly Limit and the Rationality Discussion[J].Contributions to Geology and Mineral Resources Research,2011,26(1):96-101. |
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| Authors: | YAO Tao CHEN Shou-yu and LIAORUAN ying-zi |
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| Institution: | YAO Tao1,2,CHEN Shou-yu1,LIAORUAN ying-zi1,2(1.State Key Laboratory of Geo-Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China,2.Faculty of Earth Resources,China) |
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| Abstract: | Determination of lower limit for geochemical anomaly is the key to delineate geochemical anomalies and favorable metallogenic belt and guide prospecting.If threshold is too high weak anomalies will be missed and too low resulting in exaggerating of anomalies.River sediment Cu,Pb,Zn,Ag data from Baiyin Mine Area and surroundings,Baiyin city,Gansu Province are processed with traditional methods showing anomalies mainly limited in the mine area and normalization method showing more anomalies and better coincid... |
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| Keywords: | geochemistry anomaly lower threshold normalized fractal Baiyin mine Gansu province |
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