| 海南抱板群同位素年龄及其地质意义 |
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| 引用本文： | 谭忠福, 马国干, 陈明是, 陈平, 黄照先, 蒋大海. 1991. 海南抱板群同位素年龄及其地质意义. 地质通报, (3): 241-245+228. |
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| 作者姓名： | 谭忠福 马国干 陈明是 陈平 黄照先 蒋大海 |
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| 作者单位： | 1. 地矿部宜昌地质矿产研究所;; 2.地矿部海南地质矿产总公司 |
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| 摘 要： | 本文报导了海南岛中部抱板群中的变火山岩Sm-Nd等时线年龄为975±8.6Ma,结合已知U-Pb和谐曲线年龄1401±23Ma,初步认为抱板群为一套复理石火山—沉积建造,时代属中元古代,是华夏古陆的组成部分。
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THE ISOTOPIC AGESOF THE BAOBAN GROUP IN HAINAN AND ITS GEOLOGICAL SIGNIFICANCE |
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| TAN Zhong-fu, MA Guo-gan, CHEN Ming-shi, CHEN Ping, HUANG Zhao-xian, JIANG Da-hai. 1991. THE ISOTOPIC AGESOF THE BAOBAN GROUP IN HAINAN AND ITS GEOLOGICAL SIGNIFICANCE. Geological Bulletin of China, (3): 241-245+228. |
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| Authors: | TAN Zhong-fu MA Guo-gan CHEN Ming-shi CHEN Ping HUANG Zhao-xian JIANG Da-hai |
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| Abstract: | Metavolcanic rocks in the Baoban Group in the central part of Hainan Island have a Sm-Nd isochron age of 975+8.6 and a U-Pb concordia age of 1401+23 Ma. It is preliminarily considered that the Baoban Group is a flysch volcanic-sedimentary formation of Middle Proterozoic age, which is a component part of Cathaysia. |
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