| 云南哀牢山地区构造岩石地层单元及其构造演化 |
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| 引用本文： | 方维萱,胡瑞忠,谢桂青,苏文超.云南哀牢山地区构造岩石地层单元及其构造演化[J].大地构造与成矿学,2002,26(1):28-36. |
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| 作者姓名： | 方维萱 胡瑞忠 谢桂青 苏文超 |
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| 作者单位： | 1. 中国科学院地球化学研究所矿床地球化学开放研究实验室,贵州,贵阳,550002;有色金属矿产地质调查中心,北京,复兴路12B,1000814
2. 中国科学院地球化学研究所矿床地球化学开放研究实验室,贵州,贵阳,550002 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，国家自然科学基金，云南省院校科技合作项目，G1999043200，49925309，YK98008-3，，， |
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| 摘 要： | 依据新获得的同位素年代学资料和构造岩石地层单元,重新认识了云南哀牢山造山带形成与演化历史。认为:在哀牢山地区元古界深变质岩系属基底构造层;前造山期岩石组合及构造演化为扬子地块西缘被动大陆边缘志留纪深水相碎屑岩→陆缘泥盆纪被动裂谷盆地中火山-沉积岩→石炭纪哀牢山有限洋盆及蛇绿岩石组合→晚二叠世-早三叠世哀牢山洋-陆碰撞成陆及弧火山岩-陆相碎屑岩组合。燕山期主造山期及岩石组合为晚三叠世-侏罗纪前陆盆地磨拉石建造-同造山期中酸性侵入岩-燕山期脆韧性剪切带及构造岩。喜马拉雅山期陆内造山成原的岩石组合为第三-第四纪陆内山间盆地中磨拉石建造-红河韧性剪切带及构造岩-富碱侵入岩和煌斑岩。
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| 关 键 词： | 构造岩石地层单元 岩石组合 构造演化 哀牢山造山带 云南 中国 |
| 文章编号： | 1001-1552(2002)-01-028-09 |
| 修稿时间： | 2001年4月23日 |
TECTONOLITHOSTRATIGRAPHIC UNITS OF THE AILAOSHAN AREA IN YUNNAN, CHINA AND THEIR IMPLICATIONS OF TECTONIC EVOLUTION |
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| Abstract: | Based on the recently known data of is otopic dating and tectonolithostra tigraphic units of the Ailaoshan area,tectonic evolution s of the Ailaoshan orogenic belt have been reconsidered.The Proterozoic high-grade metamorphic rock series consist of base tectonic layer.Pre-orogenic tectonolithostratigraph ic units of the Ailaoshan area are the Siluria n detrital rocks of deep sea facies fo rmed on passive,western margin of the Yangtze Plate,the Devonian volc anic-sedimentary rocks in a passive rifted basin on western margin of the Yangtze Plate,the Carboniferous op hiolite suite in the Ailaoshan limit ed oceanic basin and the Upper Per-mian-Early Triassic volcanic-arc v olcanic rocks-terrestrial detrita l rocks formed during ocean-land collision in the Ailaoshan area.Main orogenic te ctonolithostratigraphic units of t he Ailaoshan area in the Yanshanian orogenesis include the Upper Triassic-Jurassic molasses formation in t he foreland basin,syn-orogenic int er-mediate-acidic intrusions,the Yan shanian brittle-ductile shear zones and tectonite.Tectonolithostratigraphic units of intracontinental orogenesis and formation of tectonic plateau in the Himalayan comprise the Ter-tiary-Quaternary molasses formation in intracontinental basin,post-orogenic alkaline -rich intru-sions-lamprophyre and the Honghe du ctile shear zone and tectonite. |
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| Keywords: | Tectonolithostratigraphic unit r ock association tectonic evolutio n Ailaoshan orogenic belt Yunnan China |
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