| 辽宁阜新排山楼金矿的40Ar/39Ar成矿年龄 |
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| 引用本文： | 李俊建,沈保丰,骆辉,翟安民,曹秀兰,桑海清. 辽宁阜新排山楼金矿的40Ar/39Ar成矿年龄[J]. 地质科学, 2001, 36(1): 107-111 |
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| 作者姓名： | 李俊建 沈保丰 骆辉 翟安民 曹秀兰 桑海清 |
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| 作者单位： | 1. 地质矿产部天津地质矿产研究所 天津 300170;2. 中国科学院地质与地球物理研究所 北京 100029 |
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| 基金项目： | 国土资源部资源与环境科技攻关项目，95-02-003-01， |
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| 摘 要： | 排山楼大型金矿床产于辽西高级变质太古宙花岗岩-绿岩带中,受绿岩中、上部层位的基性-中酸性火山岩系和东西向韧性剪切带控制。容矿岩石主要是变质安山质-英安质火山岩类。为解决主矿体的形成时代,选取含金石英细脉浸染状矿石中的石英测定了40Ar/39Ar年龄为2105.2±10.4Ma。谱线特征为马鞍型,其底坪年龄为石英的结晶年龄。由此提出排山楼金矿的成因主要与吕梁期的东西向韧性剪切带有关。
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| 关 键 词： | 石英 40Ar/39Ar年龄 排山楼金矿 |
| 收稿时间： | 1999-12-14 |
| 修稿时间： | 1999-12-14 |
40Ar/39Ar METALLOGENIC AGE OF PAISHANLOU GOLD DEPOSIT IN FUXIN, LIAONING PROVINCE |
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| Li Junjian Shen Baofeng Luo Hui Zhai Anmin Cao Xiulan. 40Ar/39Ar METALLOGENIC AGE OF PAISHANLOU GOLD DEPOSIT IN FUXIN, LIAONING PROVINCE[J]. Chinese Journal of Geology, 2001, 36(1): 107-111 |
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| Authors: | Li Junjian Shen Baofeng Luo Hui Zhai Anmin Cao Xiulan |
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| Affiliation: | 1. Tianjin Institute of Geology and Mineral Resources, Ministry of Geology and Mineral Resources of China, Tianjin 300170;2. Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029 |
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| Abstract: | The Paishanlou large gold deposit occurs in western Liaoxi Archean granite greenstone belt which subjected to high-grade metamorphism. The gold mineralization was controlled by basic and medium-acidic volcanics of the middle-upper parts in the greenstone sequence and E-W striking ductile shear zone. The host-rocks mainly are meta andesitic dacitic volcanic rocks. In order to solve the problem of formation age of major mineralizated period in the Paishanlou gold deposit,we have adopted fast-neutron activatium method to test 40Ar/39Ar age of quartz in gold bearing quartz veinlet-disseminated ore and obtained the age data is 2105.2?10.4 Ma.Spectrum line is characterized by the form of saddle. The base plateau 40Ar/39Ar age is the crystallization age of quartz. The authors suggest that the Paishanlou gold deposit is genetically related to metamorphism and deformation of E-W striking ductile shear zones in the Luliang movement. |
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| Keywords: | Quartz 40 Ar/ 39 Ar age The Paishanlou gold deposit |
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