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介绍了灰色关联分析的基本原理和数学方法。并通过一实例详细给出了灰色关联分析在矿山选择勘探基地中的应用过程。最后指出了该方法的优点。 相似文献
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豫西杜关地区锰结核特征分析 总被引:1,自引:1,他引:0
杜关地区锰结核产出在华北地台南缘的官道口群龙家园组底部,沿东西向张性断裂分布。锰结核主要由硬锰矿、软锰矿、褐铁矿构成。常量元素含量表明:硬锰矿富钾、贫锰,软锰矿贫钾、富锰。微量元素分析结果显示锰结核形成于大陆边缘裂谷的热水沉积体系。 相似文献
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Isotope systematics and metallogenetic age of Zhuanghe gold deposit, Liaoning province, China 总被引:1,自引:1,他引:1
Based on the metallogenetic geology conditions, the H, O, C and S isotopic compositions were measured by MAT-251 mass spectrometer, and Pb isotope and Rb-Sr dating were carried with MAT-261 multi-acceptor mass spectrometer. The results show that the δ18O values of gold-bearing vein quartz from different levels are 1.19%-1.42%. The calculated δ18O values of ore fluids are 0.55%-0.78%, and δD values are from –8.64% to –6.66%. The calculated values of δ 34 SH2Sby the δ34Spy values in quartz veins display sulfur isotope compositions from -0.053% to 0.413%. Carbon isotope compositions of carbonates are from -0.612% to 0.140%. The mole ratios of 206Pb to 204Pb, 207Pb to 204Pb and 208Pb to 204Pb in auriferous quartz vein are 16.987-17.545, 15.342-15.623, and 38.254-38.744, respectively. The age of the Zhuanghe gold deposit determined by Rb-Sr isochron of the fluid inclusions in quartzes is (143.0±5.8) Ma. These isotopic data suggest that the metallogenetic fluids are generated from magmatic hydrotherm and the origin of ore-forming matters is related to the deep-derived magmatic activities. Meanwhile, the metallogenetic epoch of the Zhuanghe gold deposit is in Yanshanian period. 相似文献
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伽师砂岩型铜矿床位于新疆西南天山砂岩型铜成矿带中段,是该带最大的砂岩型铜矿床。通过矿床及外围实测剖面测量、路线剖面调查,及岩性、岩相鉴定,结合区域岩性、岩相及古环境分析,推断古近系早期到晚期由于陆壳的持续抬升与局部间歇性海侵、海退,其成矿环境表现了滨海潟湖及局部夹有河流三角洲相变规律。其含铜矿层应为滨海潟湖-三角洲环境的产物。至古近系始新世(45 Ma),在印度板块碰撞俯冲的背景下,陆壳持续抬升,至新近纪中新世(21 Ma)完全变为陆相沉积,随着近南北向持续挤压隆升,形成西南天山古近纪推覆构造带,致使含矿层位发生褶皱以至于南翼发生倒转的构造样式。据此来推动新疆伽师地区铜矿资源的进一步开采,并对研究区古环境分析提供更为有力的的论证。 相似文献
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青海沟里地区位于东昆仑造山带东段,根据水系沉积物地球化学测量已发现了多个矿床(点),具有较好的找矿潜力。本文选取沟里地区巴加别里赤尔幅(浪木日地区)1∶5万水系沉积物地球化学测量数据为研究对象,利用统计学方法和趋势面分析法两种方法进行异常信息提取。结果显示,趋势面分析法相较于传统统计法,圈定的异常面积更大、浓集中心更明确、分带特征更明显,且与已知矿床点的吻合度更高,整体上具有强化低背景异常的优势。同时利用趋势面分析法提取了3个元素组合,并对套合性和相关性突出,且与区内浪木日铜镍硫化物矿床相关的Cu-Zn-Cr-Co-Ni组合异常进行异常剖析。结合区内地质特征和浪木日矿区矿体分布情况,圈定了哲扎空龙洼东、龙里、瑙格木东和卡鲁南等找矿远景区,为区内下一步铜镍找矿工作提供了方向。 相似文献
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