| DISTINGUISHING OF TWO VOLCANIC ROCK SERIES IN THE LANCANG GROUP, YUNNAN PROVINCE, SW CHINA AND ITS GEOLOGICAL IMPLICATION |
| |
| 作者姓名： | 翟明国 从柏林 张儒媛 |
| |
| 作者单位： | Institute of Geology，Academia Sinica，Beijing 100011，PRC，Institute of Geology，Academia Sinica，Beijing 100011，PRC，Institute of Geology，Academia Sinica，Beijing 100011，PRC |
| |
| 基金项目： | Project supported by the National Natural Science Foundation of China. |
| |
| 摘 要： | The detailed study on petrochemistry and geochemistry shows that meta-volcanics from Huimin and meta-basalts from Suyi belong, respectively, to different volcanic series. The former is of non-alkalic volcanic series and the latter is of straddle A-type alkslic series. Based on their geochemical characteristics of REE, LIL, HFS and Nd, Sr isotope elements, we suggest that Huimin volcanics were formed in an island arc setting and Suyi basalts were formed in a back-continental arc extensive setting. These two volcanic series have not petrogenic relationship.
|
DISTINGUISHING OF TWO VOLCANIC ROCK SERIES IN THE LANCANG GROUP, YUNNAN PROVINCE, SW CHINA AND ITS GEOLOGICAL IMPLICATION |
| |
| ZHAI MING-GUO CONG BO-LIN ZHANG RU-YUAN.DISTINGUISHING OF TWO VOLCANIC ROCK SERIES IN THE LANCANG GROUP, YUNNAN PROVINCE, SW CHINA AND ITS GEOLOGICAL IMPLICATION[J].Science in China(Chemistry),1990(8). |
| |
| Authors: | ZHAI MING-GUO CONG BO-LIN ZHANG RU-YUAN |
| |
| Abstract: | The detailed study on petrochemistry and geochemistry shows that meta-volcanics from Huimin and meta-basalts from Suyi belong, respectively, to different volcanic series. The former is of non-alkalic volcanic series and the latter is of straddle A-type alkslic series. Based on their geochemical characteristics of REE, LIL, HFS and Nd, Sr isotope elements, we suggest that Huimin volcanics were formed in an island arc setting and Suyi basalts were formed in a back-continental arc extensive setting. These two volcanic series have not petrogenic relationship. |
| |
| Keywords: | two voleanic series the Lancang Group western Yunnan |
| 本文献已被 CNKI 等数据库收录！ |
