| 吉林老岭地区正岔夕卡岩型铅锌矿床成因与找矿标志 |
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| 引用本文： | 彭明生,赵华伟,杨宏智,李明阳.吉林老岭地区正岔夕卡岩型铅锌矿床成因与找矿标志[J].地质与资源,2013,22(3):185-191. |
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| 作者姓名： | 彭明生 赵华伟 杨宏智 李明阳 |
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| 作者单位： | 1. 沈阳地质矿产研究所/中国地质调查局 沈阳地质调查中心, 辽宁 沈阳 110034;2. 吉林省地质调查院, 吉林 长春 130061;3. 成都理工大学 地球科学学院, 四川 成都 610059 |
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| 摘 要： | 老岭地区是吉林省重要的铅锌、铜、金等有色金属成矿区带，正岔铅锌矿是该矿带中具有代表性的夕卡岩型矿床，具有多阶段、成矿物质双重来源等特征.通过对矿床的地质特征、地球化学以及地球物理特征研究，认为成矿物质主要来自中生代岩浆源和古元古代海相火山-沉积源.而含矿流体中大气水与岩浆水不同比例混合的性质，表明该矿床的“胚胎”可能在元古宙已经形成，并为火山喷发的间隙期或火山喷发向海相沉积转化过程形成.受到中生代岩浆侵位热作用使得原始“胚胎”活化、并进一步富集成矿.综合区域成矿背景，归纳并提取了控矿地质因素，建立了地物化综合找矿标志.
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| 关 键 词： | 正岔铅锌矿 夕卡岩型 地球化学 地球物理 找矿标志 吉林老岭 |
| 收稿时间： | 2012-11-28 |
GENESIS AND PROSPECTING INDICATORS OF THE ZHENGCHA LEAD-ZINC DEPOSIT IN LAOLING AREA, JILIN PROVINCE |
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| PENG Ming-sheng
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ZHAO Hua-wei
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YANG Hong-zhi
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LI Ming-yang.GENESIS AND PROSPECTING INDICATORS OF THE ZHENGCHA LEAD-ZINC DEPOSIT IN LAOLING AREA, JILIN PROVINCE[J].Geology and Resources,2013,22(3):185-191. |
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| Authors: | PENG Ming-sheng ZHAO Hua-wei YANG Hong-zhi LI Ming-yang |
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| Institution: | 1. Shenyang Institute of Geology and Mineral Resource, CGS, Shenyang 110034, China;2. Jilin Institute of Geological Survey, Changchun 130061, China;3. College of Earth Sciences, Chengdu University of Technolog, Chengdu 610059, China |
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| Abstract: | The Laoling area is an important lead-zinc-copper-gold metallogenic belt in Jilin Province. The Zhengcha lead- zinc deposit is a typical skarn deposit in the belt, with metallogenic features of multi-stage and dual sources. Study on geology, geochemistry and geophysics shows that the ore materials are derived from the Mesozoic magma and the Paleoproterozoic marine volcanic-sedimentary source. Furthermore, the different mixing proportions between atmospheric water and magmatic water indicate that the embryonic of the deposit may have formed by Proterozoic era, during the volcanic eruption interval or the transition from volcanic eruption to marine sedimentation. The thermal effect of Mesozoic magmatic emplacement activated the original ＂embryonic＂, with further enrichment and mineralization. Based on the integrated analysis of regional metallogenic background and ore-controlling geological factors, a geological-geochemical- geophysical criterion for ore prospecting is established. |
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| Keywords: | Zhengcha lead-zinc deposit skarn type geochemistry geophysics prospecting indicator Laoling area Jilin Province |
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