| 造山带岩石圈化学结构平面图的编制——以秦岭—大别造山带为例 |
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| 引用本文： | 侯广顺,韩吟文,路凤香.造山带岩石圈化学结构平面图的编制——以秦岭—大别造山带为例[J].甘肃地质学报,2002(2):87-92. |
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| 作者姓名： | 侯广顺 韩吟文 路凤香 |
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| 作者单位： | 中国地质大学地球科学学院 湖北武汉430074
(侯广顺，韩吟文)，中国地质大学地球科学学院 湖北武汉430074(路凤香) |
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| 基金项目： | 国土资源部科学基金“岩石圈三维化学结构研究”项目资助 |
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| 摘 要： | 国内外岩石圈化学组成的编图研究还处于探索阶段。笔者从岩石圈化学结构的思路出发 ,提出了编图的 3个地球化学指标 (铅同位素组成、T2DM 和同位素年代学 )和表示方法。以秦岭—大别造山带为例 ,同位素组成图可以反映构造分区和地壳生长历史 ,对造山过程和深部壳幔相互作用也有明确的显示 ;结合地质年代学的资料 ,化学结构平面图具有反映时空演化四维信息的能力。
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| 关 键 词： | 岩石圈化学结构 秦岭—大别造山带 同位素组成 模式年龄 |
MAPPING OF OROGENIC LITHOSPHERE CHEMICAL TEXTURE --Qinling-Dabie Orogen as Example |
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| HOU Guang shun,HAN Yin wen and LU Feng xiang.MAPPING OF OROGENIC LITHOSPHERE CHEMICAL TEXTURE --Qinling-Dabie Orogen as Example[J].Acta Geologica Gansu,2002(2):87-92. |
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| Authors: | HOU Guang shun HAN Yin wen and LU Feng xiang |
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| Institution: | Faculty of Earth Science,China University of Geoscience,Wuhan 430074,China;Faculty of Earth Science,China University of Geoscience,Wuhan 430074,China;Faculty of Earth Science,China University of Geoscience,Wuhan 430074,China |
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| Abstract: | Mapping of lithosphere chemistrical composition is still on the probing phase all the world around. From the view of lithosphere chemical texture, this article brings forward three geochemistry index for mapping and illuminates how to map them out. Qinling-Dabie orogen taken as example, the map is able to reflect structural zones and continental crust growth, at the same time, is able to reflect orogenic course and deep continental crust-mantle interrelationship; accompanied with the isotopic chronology information, chemical texture plane map can give space-time 4-D information in all. |
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| Keywords: | Lithosphere chemical texture Qinling-Dabie orogen Isotope composition Model age |
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