| 新疆扎格依库都克金矿地球化学特征及地质意义 |
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| 引用本文： | 张立武,闫宏宽,吴晓贵,鲜小龙.新疆扎格依库都克金矿地球化学特征及地质意义[J].新疆地质,2019(1):51-55. |
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| 作者姓名： | 张立武 闫宏宽 吴晓贵 鲜小龙 |
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| 作者单位： | 新疆维吾尔自治区地质矿产勘查开发局第四地质大队 |
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| 基金项目： | 中央返还两权价款资金项目新疆福海县-富蕴县乌尔腾萨依一带金铜多金属矿调查评价(A14-2-LQ14) |
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| 摘 要： | 扎格依库都克金矿位于哈萨克斯坦-准噶尔板块北缘、额尔齐斯构造带南部。围岩蚀变硅化、黄铁矿化、褐铁矿化、绢云母化。矿区原生晕测量成果显示Au,As,Sb,Bi,W等元素与金矿化关系密切,矿床中的金可能是深部岩浆热液活动沿断裂上升,萃取围岩中的成矿物质形成的。赋矿岩石地球化学研究表明,大离子亲石元素K,Ba,Rb等富集,Nb,Ta,Ti等部分高场强元素亏损;轻稀土元素(LREE)相对重稀土元素(HREE)轻度富集,Nb/Ta值为19.63～26.00,显示岩浆可能源于下地壳或上地幔熔融,且有上地壳物质混入,是大陆岛弧至大陆边缘构造环境下的火山活动产物。
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| 关 键 词： | 新疆 扎格依库都克金矿 原生晕 地球化学 构造环境 |
Geochemical Characteristics and its Geological Significance of Zhageyikuduke Gold Deposit,Xinjiang |
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| Zhang Liwu,Yan Hongkuan,Wu Xiaogui,Xian Xiaolong.Geochemical Characteristics and its Geological Significance of Zhageyikuduke Gold Deposit,Xinjiang[J].Xinjiang Geology,2019(1):51-55. |
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| Authors: | Zhang Liwu Yan Hongkuan Wu Xiaogui Xian Xiaolong |
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| Institution: | (No.4 Geological Team,Xinjiang Bureau of Geology and Mineral Resource,Altay,Xinjiang,836500,China) |
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| Abstract: | Zhageyikuduke gold deposit is located in the Northern margin of Kazaka-Junggar plate and the Southern Erzis tectonic belt.The wall rock alterations are mainly silicification,pyritization,ferritization,sericitization.Primary halo measurement results show that the elements such as Au-As-Sb-Bi-W,which are closely related to gold mineralization.The gold in the deposit may be the deep magmatic hydrothermal activity rising along the fault,extracting ore-forming materials from surrounding rock.The ore-hosting rocks are relatively enriched in large ion lithophile elements (K,Ba,Rb,etc.) and depletion in high field strength elements (Nb,Ta,Ti,etc.).Light rare earth elements (LREE)are lightly enriched,which is relative to heavy rare earth elements(HREE).Nb/Ta ratio (19.63~26.00),which suggest that the magma may originate from the melting of the lower crust or the upper mantle,and the material of the upper crust is mixed into the magma, which is the product of volcanic activity in the continental island arc to continental margin tectonic environment. |
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| Keywords: | Xinjiang Zhageyikuduke gold deposit Primary halo Geochemistry Tectonic setting |
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