| 华北克拉通古老大陆地壳组成及演化 |
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| 作者姓名： | 万渝生 董春艳 颉颃强 郑建平 刘守偈 马铭株 谢士稳 任鹏 孙会一 刘敦一 |
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| 作者单位： | 1. 中国地质科学院地质研究所北京离子探针中心，北京 100037;2. 中国地质大学地球科学学院地质过程与矿产资源国家重点实验室， 湖北 武汉 430074 |
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| 基金项目： | 中国地质调查“华北克拉通太古宙早期古老陆壳物质的寻找、鉴别和研究(编号:1212011120151)”、“华北克拉通太古宙早期陆核形成与演化(编号:12120114021301)”、 国家“973”项目“太古宙陆壳增生与条带状铁矿发育规律(编号:2012CB416601)”、国家自然科学基金项目“鲁西花岗-绿岩带的形成和演化:地质、地球化学和锆石SHRIMP U-Pb定年(编号:41172127)”等项目联合资助。 |
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| 摘 要： | 对鞍本、冀东、鲁西、阴山等早前寒武纪典型地区和深部物质进行了深入研究，总结了华北克拉通早期地壳形成演化历史。揭示出鄂尔多斯地块本身强烈卷入了古元古代晚期构造热事件。首次在华北克拉通划分出3个>2.6 Ga古陆块。
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| 关 键 词： | 华北克拉通 太古宙 构造划分 Hf同位素 |
| 收稿时间： | 2015-01-17 |
Composition and Evolution of the Ancient Basement of the North China Craton |
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| Authors: | WAN Yu-sheng DONG Chun-yan XIE Hang-qiang ZHENG Jian-ping LIU Shou-jie MA Ming-zhu XIE Shi-wen REN Peng SUN Hui-yi LIU Dun-yi |
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| Institution: | 1. Beijing SHRIMP Center, Institute of Geology, Chinese Academy of Geological Sciences, Beijing 100037, China; 2. State Key Laboratory of Geological Processes and Mineral Resources, Faculty of Earth Sciences, China University of Geosciences, Wuhan, Hubei 430074, China |
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| Abstract: | We carried out integrated geological, geochronological and geochemical studies on typical early Precambrian areas of the North China Craton, such as Anshan-Benxi, eastern Hebei, western Shandong and Yinshan, and synthesized the general geological records of the Archean basement relating to Archean crust formation and evolution of the North China Craton. This study also revealed that the Ordos basement was involved in a widespread late Paleoproterozoic tectono-thermal event. We defined and outlined three ancient terranes containing abundant 3.8~2.6 Ga rocks for the first time in the North China Craton, namely the Eastern Ancient Terrane, Southern Ancient Terrane and Central Ancient Terrane. |
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| Keywords: | North China Craton Archean tectonic subdivision Hf isotope |
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