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地质科学  1997, Vol. Issue (1): 56-64    DOI:
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多硅白云母b0值对澜沧群中压和高压变质的反映
宋仁奎, 应育浦, 叶大年
中国科学院地质研究所 北京 100029
THE MEDIUM-AND HIGH-PRESSURE METAMORPHISMS OF LANCANG GROUP REFLECTED BY b0 VALUES OF PHENGITES
Song Renkui, Ying Yupu, Ye Danian
Institute of Geology, Chinese Academy of Sciences, Beijing 100029
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摘要 多硅白云母b0值作为相对地质压力计的理论和方法,已受到各国地质学家的普遍重视。本文以澜沧群多硅白云母作为研究对象,提出运用多硅白云母b0值区分不同压力变质的方法。研究结果表明澜沧群经历了中压和高压变质作用,两期变质的多硅白云母b0值分别为9.027Å和9.047Å。
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宋仁奎
应育浦
叶大年
关键词多硅白云母   b0   中压和高压变质   澜沧群     
Abstract: The theory and method of b0 values of phengites regarded as a relative geobarometer have been valued by geologists of the world. There is no research on polymetamorphism reflected by b0 values of phengites reported in the world today. We think that the populations of b0 values must be distinguished in the study of b0 values of phengites of low grade metamorphic rocks occurred in ancient orogenic belts, especially, for the polycyclic orogenesis in China. In this paper, the authors put forward a method of distinguishing polymetamorphism by statistical analyses of b0 values of phengites on the basis of research on phengites of Lancang Group. Statistical analyses of 486 b0 values of phengites show that there are medium-and high-pressure metamorphisms in Lancang Group. The intersection of two straight lines representing bi-nomal distributions is situated at the point corresponding to b0=9.040Å in probability graph. The mean b0 value of high-pressure is 9.047, the standard deviation and cumulative probability are 0.005 and 55% respectively. The average b0 value of medium-pressure metamorphism is 9.027Å, its standard deviation is 0.010. The cumulative frequency curve of medium-pressure metamorphism is situated between cumulative frequency curves of Ryoke and Easterm Alps. The cumulative frequency curve of high-pressure is similar to that of Sanbagawa.
Key wordsPhengite   b0 value   Medium-and High-pressure metamrophisms   Lancang Group   
收稿日期: 1995-12-27;
基金资助:国家自然科学基金
引用本文:   
宋仁奎,应育浦,叶大年. 1997, 多硅白云母b0值对澜沧群中压和高压变质的反映. 地质科学, (1): 56-64.
Song Renkui,Ying Yupu,Ye Danian. THE MEDIUM-AND HIGH-PRESSURE METAMORPHISMS OF LANCANG GROUP REFLECTED BY b0 VALUES OF PHENGITES[J]. Chinese Journal of Geology, 1997, (1): 56-64.
 
没有本文参考文献
[1] 李海龙,宋传中,李加好,任升莲,王道轩,王微,杨帆. 宿松杂岩中白云母的矿物学特征及地质意义[J]. 地质科学, 2016, 51(4): 1246-1260.
[2] 侯泉林, 钟大赉, 郭谦谦. 滇西无量山地区的构造变形和变质作用[J]. 地质科学, 2013, 48(2): 354-361.
[3] 应有浦, 宋仁奎, 赫伟. 多硅白云母中Fe2+的高压有序效应[J]. 地质科学, 1995, (4): 355-362.
[4] 吴根耀, 张振禹. 川西滇东地区前寒武系地层中白云母b0值的初步研究[J]. 地质科学, 1987, (1): 39-49.
 
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