阿尔金铅、钕、锶、氩、氧同位素研究及其早期演化 |
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引用本文:车自成,刘良,孙勇.1995.阿尔金铅、钕、锶、氩、氧同位素研究及其早期演化[J].地球学报,16(3):334-337. |
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中文摘要:根据铅、钕、锶、氩、氧等同位素体系及其年代学研究,阿尔金在其早期演化阶段中存在2790—2590、1883—1704、575和470—420Ma4个构造热事件,各自具有不同的性质和时代意义。 |
中文关键词:阿尔金 铅、钕、锶、氩、氧同位素体系 构造演化 |
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U-Pb,Sm-Nd,Rb-Sr,(40)Ar/(39)Ar and (18)O/(16)O LsotopicStudies for Early Evolution of the Structural Belt in Altun Area |
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Abstract:Existing four tectonic events for early evolution of the Altun structural belt,the age is separat-ly 2790 2590, 1883 1704,575 and 470 420Ma. This conclution results from U-Pb,Sm-Nd,Rb-Sr,(40)Ar/(39)Ar,(18)O/(16)O iSotopic system studies. Four data respectively represent basement forma-tion,cratonization,accretion and collision of the plate located Altun mountain in. |
keywords:Altun U-Pb Sm-Nd Rb-Sr (40)Ar/(39)Ar and (18)○/(16)○ isotopic systems tecton-kevolution |
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