The Rb-Sr age and geological implication of alkaline syenitic complex from Liangtun-Kuangdonggou at Gaixian, eastern Liaoning Province |
| |
Authors: | Baoliang Xu Guohan Yan Baolei Mu Linkun Tan Zhongfu He Guangsheng Qiao Renhu Zhang |
| |
Institution: | (1) Department of Geology, Peking University, 100871 Beijing, China;(2) Institute of Geology, Chinese Academy of Sciences, 100029 Beijing, China |
| |
Abstract: | Liangtun-Kuangdonggou complex, 30 km southeast of Gaixian Town, Liaoning Province, is composed of aegirine-augite hornblende
syenite, aegirine-augite syenite, hornblende syenite, pyroxene syenite and syeno-aegirinolite. Rb-Sr isotopic data to the
complex are reported and used for discussion of chronology and geological implication. They show that the complex occurred
in early Proterozoic and is a tectonic sign of extension setting. Moreover, the date indicates that the Liaohe Group, which
is metamorphic wall rock of the complex, formed over 1 900 Ma ago. |
| |
Keywords: | Liaoning Province early Proterozoic alkaline syenites Rb-Sr age |
本文献已被 SpringerLink 等数据库收录! |
| 点击此处可从《中国科学通报(英文版)》浏览原始摘要信息 |
| 点击此处可从《中国科学通报(英文版)》下载免费的PDF全文 |
|