| 安徽月山复式岩体锆石SHRIMP U-Pb年龄和地球化学特征及其地质意义 |
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| 引用本文： | 许逢明,杜杨松,王功文,曹毅,东前,方福康. 安徽月山复式岩体锆石SHRIMP U-Pb年龄和地球化学特征及其地质意义[J]. 矿物岩石, 2012, 32(1): 61-66 |
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| 作者姓名： | 许逢明 杜杨松 王功文 曹毅 东前 方福康 |
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| 作者单位： | 1. 沈阳地质调查中心,辽宁沈阳 110034;中国地质大学,地质过程与矿产资源国家重点实验室,北京100083
2. 中国地质大学,地质过程与矿产资源国家重点实验室,北京100083 |
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| 基金项目： | 全国危机矿山接替资源找矿科研项目，中央高校基本科研业务费专项资金 |
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| 摘 要： | 根据接触关系和岩石学特征将月山复式岩体划分为两个阶段侵入岩,即第一阶段的石英闪长岩,第二阶段的闪长岩。锆石U-Pb年代学研究表明,安庆地区中生代至少发生过两期岩浆作用,第一期在139Ma,主要形成石英闪长岩,第二期在123 Ma,主要形成闪长岩。岩石地球化学特征表明月山闪长岩体是由壳幔混源岩浆结晶分异作用形成。
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| 关 键 词： | 月山复式岩体 锆石SHRIMP U-Pb定年 壳幔混源岩浆 |
ZIRCON SHRIMP U-Pb AGES,GEOCHEMICAL CHARACTERISTICS AND GEOLOGICAL IMPLICATION OF YUESHANG COMPLEX, ANHUI PROVINCE,CHINA |
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| XU Feng-ming , DU Yang-song , WANG Gong-wen , CAO Yi , DONG Qian , FANG Fu-kang. ZIRCON SHRIMP U-Pb AGES,GEOCHEMICAL CHARACTERISTICS AND GEOLOGICAL IMPLICATION OF YUESHANG COMPLEX, ANHUI PROVINCE,CHINA[J]. Journal of Mineralogy and Petrology, 2012, 32(1): 61-66 |
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| Authors: | XU Feng-ming DU Yang-song WANG Gong-wen CAO Yi DONG Qian FANG Fu-kang |
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| Affiliation: | 1.Center Geological Survey of Shenyang,Shenyang,Liaoning 110034,China; 2.China University of Geosciences,State Key Laboratory of Geological Processes and Mineral Resources,Beijing 100083,China) |
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| Abstract: | According to the contact relationship and petrological characteristics,Yueshan complex in Anhui Province can be divided into two stages of intrusions,the stage I formed quartz diorite and the stage II formed diorite.The SHRIMP zircon U-Pb dating results support occurrence of at least two periods of magmatism in the Mesozoic,the first is at ～139 Ma and the second at ～123 Ma,which are responsible for the formation of quartz diorite and diorite respectively.Geochemical characteristics indicate that the magmas of Yueshan diorite is derived from mixing source of mantle with crust crystallization. |
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| Keywords: | Yueshan complex zircon SHRIMP U-Pb dating crust-mantle mixing magma |
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