| 应用奇异值分解(SVD)技术提取西铜石金矿田致矿重力异常 |
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| 引用本文： | 赵彬彬,陈永清. 应用奇异值分解(SVD)技术提取西铜石金矿田致矿重力异常[J]. 地球科学, 2011, 36(2): 341-346 |
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| 作者姓名： | 赵彬彬 陈永清 |
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| 作者单位： | 中国地质大学地球科学与资源学院,北京,100083 |
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| 基金项目： | 国家自然科学基金，国家高新技术研究"863"发展计划，"十一·五"国家科技支撑计划 |
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| 摘 要： | 基于MATLAB平台编制的奇异值分解(SVD)程序有效地应用于铜石金矿田1:50000重力数据分解.首先,利用奇异值分解将重力数据分解为一系列的特征值空间;然后运用多重分形技术确立反映不同层次控矿因素的特征空间值的临界值,最后将这些具有不同控矿因素特征的特征空间值按一定的规则进行数据重构.结果获取三幅刻画不同尺度控矿因...
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| 关 键 词： | 奇异值分解 多重分形 重力异常 金矿化 控矿因素 铜石金矿田 中国东部 |
Singular-Value Decomposition (SVD) for Extraction of Gravity Anomaly Associated with Gold Mineralization in the Tongshi Gold Orefield,Western Shandong Province,East China |
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| ZHAO Bin-bin,CHEN Yong-qing School of the Earth Sciences , Resources,China University of Geosciences,Beijing ,China. Singular-Value Decomposition (SVD) for Extraction of Gravity Anomaly Associated with Gold Mineralization in the Tongshi Gold Orefield,Western Shandong Province,East China[J]. Earth Science-Journal of China University of Geosciences, 2011, 36(2): 341-346 |
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| Authors: | ZHAO Bin-bin CHEN Yong-qing School of the Earth Sciences & Resources China University of Geosciences Beijing China |
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| Affiliation: | ZHAO Bin-bin,CHEN Yong-qing School of the Earth Sciences & Resources,China University of Geosciences,Beijing 100083,China |
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| Abstract: | A singular-value decomposition (SVD) program on a MATLAB platform was effectively used to handle gravity signals for the Tongshi gold field.Firstly.The gravity signals are firstly decomposed into different eigenimages with singular-value decomposition method.Secondly,the thresholds between the eigenvalues reflecting different layers of ore-controlling factors are established by multi-fractal method.Finally the eigenvalues with different layers of ore-controlling factors were rebuilt on certain mathematical ... |
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| Keywords: | singular-value decomposition multi-fractal gravity anomalies gold mineralization ore-controlling factors Tongshi gold orefield East China |
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