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浙江大学学报（理学版）
浙江大学学报（理学版）  2016, Vol. 43 Issue (6): 716-725    DOI: 10.3785/j.issn.1008-9497.2016.06.017
地球科学     
多元统计分析在塔里木瓦吉里塔格钒钛磁铁矿床多元素相关性及成矿预测研究中的应用
赵亚莉1, 刘浩滢1,2, 厉子龙2, 邹思远2,3, 孙浩伟2, 励音骐2, 杨树锋2, 陈汉林2, 成军4
1. 渤海大学 数理学院, 辽宁 锦州 121000;
2. 浙江大学 地球科学学院, 浙江 杭州 310027;
3. 河北地质 大学 资源学院, 河北 石家庄 050031;
4. 新疆八一钢铁集团有限责任公司, 新疆 乌鲁木齐 830022
Multivariate statistical analyses for Fe-Ti-V oxide ore deposit in Wajilitag area of Tarim Basin and its application for metallogenic prediction
ZHAO Yali1, LIU Haoying1,2, LI Zilong2, ZOU Siyuan2,3, SUN Haowei2, LI Yinqi2, YANG Shufeng2, CHEN Hanlin2, CHENG Jun4
1. Department of Mathematics and Physics, Bohai University, Jinzhou 121000, Liaoning Province, China;
2. School of Earth Sciences, Zhejiang University, Hangzhou 310027, China;
3. The College of Resources, Hebei GEO University, Shijiazhuang 050031, China;
4. Xinjiang Bayi Steel Company, Urumqi 830022, China
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摘要： 塔里木巴楚县瓦吉里塔格地区出露有与塔里木早二叠世大火成岩省的形成密切相关的大型钒钛磁铁矿床. 基于多元统计分析对该矿区露头和大量钻孔岩心样品中Fe-Ti-V元素和部分主量元素数据开展了元素地球化学相关性研究. 采用SPSS软件对大量数据进行相关分析和回归分析，计算各元素间的相关系数，Fe、Ti、V 3种元素的相关性分析结果表明： 矿床中Fe、Ti和V之间均呈正相关， 成矿元素与造岩元素之间存在负相关关系；建立伴生钒元素与铁和钛元素之间关系的回归方程V=-4.984+0.360 Fe+0.984Ti，由Fe和Ti元素质量分数可以估算伴生组分V的质量分数.利用Matlab软件的可视化功能，绘制了Fe-Ti-V元素质量分数的三维立体图，建立空间模型，发现Fe2O3T、TiO2和V2O5品位较高的位置相对一致，均主要分布于研究区北部中间一带，富集在辉石岩中. 该空间模型的建立有助于识别矿体和非矿体的分布范围和富集趋势，并进行成矿预测. 此项研究对钒元素含量的精确估算和矿藏勘探有一定的指导意义.
关键词： 相关分析;  回归分析;  成矿预测;  钒钛磁铁矿;  塔里木大火成岩省;  SPSS;  Matlab    
Abstract: The giant Wajilitag Fe-Ti-V oxide ore deposit outcropping in the Bachu area of Tarim Basin, is closely linked with the formations of the Early Permian Tarim Large Igneous Province. The correlations of major elements and metal elements(Fe, Ti and V) of the rock and ore samples from both outcrops and drill holes were studied by multivariate statistical analyses. The relationship between Fe-Ti and major elements was studied by the method of correlation analysis and regression analysis using the SPSS software. Correlation analysis of the drill hole data shows that Fe, Ti and V contents have positive correlations with each other. The equation of V=-4.984+0.360 Fe+0.984Ti among Fe, Ti and V elements is also established to predict vanadium content when Fe and Ti contents are known. The Fe-Ti-V three-dimensional cubic charts are drawn to establish the spatial distribution mode and predict the potential ore body using the visualization of Matlab. Our study shows that the contents of Fe2O3T、TiO2 and V2O5 are mostly enriched in pyroxenites in the middle area of the northern part of the Wajilitag ore deposit. This study addresses an effective role in delineating and tracing the distribution trend and the enriched potential of Fe, Ti and V ore bodies.
Key words: correlation analysis    regression analysis    metallogenic prediction    Fe-Ti-V oxide ore deposit    Tarim Large Igneous Province    SPSS    Matlab
收稿日期: 2015-09-22 出版日期: 2017-03-07
CLC:  P628.+1  
基金资助: 国家重点基础研究(973)资助项目(2011CB808902，2007CB411303)；国家自然科学基金重点资助项目(40930315)和面上项目(11371070)；浙江省国土资源厅项目(2014C33023)；浙江省科技厅项目(2015005)；浙江省地质勘查局科研项目(201531).
通讯作者: 厉子龙,ORCID:http://orcid.org/0000-0003-0604-0460,E-mail:zilongli@zju.edu.cn     E-mail: zilongli@zju.edu.cn
作者简介: 赵亚莉(1970-),ORCID:http://orcid.org/0000-0001-6768-3000,女,博士,教授,主要从事变分不等式问题研究,E-mail:yalizhao2000@163.com.
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赵亚莉
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引用本文:

赵亚莉, 刘浩滢, 厉子龙, 邹思远, 孙浩伟, 励音骐, 杨树锋, 陈汉林, 成军. 多元统计分析在塔里木瓦吉里塔格钒钛磁铁矿床多元素相关性及成矿预测研究中的应用[J]. 浙江大学学报（理学版）, 2016, 43(6): 716-725.

ZHAO Yali, LIU Haoying, LI Zilong, ZOU Siyuan, SUN Haowei, LI Yinqi, YANG Shufeng, CHEN Hanlin, CHENG Jun. Multivariate statistical analyses for Fe-Ti-V oxide ore deposit in Wajilitag area of Tarim Basin and its application for metallogenic prediction. Journal of ZheJIang University(Science Edition), 2016, 43(6): 716-725.

链接本文:

https://www.zjujournals.com/sci/CN/10.3785/j.issn.1008-9497.2016.06.017    或    https://www.zjujournals.com/sci/CN/Y2016/V43/I6/716

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