| 广西大容山—十万大山花岗岩岩基地质年代表 |
| |
| 引用本文： | 罗修泉,廖庆康,梁廷苞.广西大容山—十万大山花岗岩岩基地质年代表[J].岩石矿物学杂志,1992,11(1):31-42. |
| |
| 作者姓名： | 罗修泉 廖庆康 梁廷苞 |
| |
| 作者单位： | 中国地质科学院地质研究所，广西地矿局区域地质调查队，广西地矿局区域地质调查队 北京 100037，546300，546300 |
| |
| 摘 要： | 对广西大容山一十万大山花岗岩岩基按单元和超单元的概念划分出石南、葵山、六万山和旺冲四个超单元,前三个超单元又可归并为大容山一十万大山岩群。主要采用~(40)Ar/~(39)Ar阶段升温法和K-Ar稀释法对单元和超单元进行系统的年代学研究,并编制出该区花岗岩同位素地质年代表。年代表说明,大容山一十万大山岩群侵位时间从晚二叠世258Ma,持续时间约27Ma;该岩群各超单元存在并列演化的特点。旺冲超单元形成于早二叠世259Ma.
|
| 关 键 词： | 花岗岩 地质 年代表 年龄 测定 |
Geological Age Table of the Darongshan-Shiwandashan Granitic Batholith in Guangxi Province |
| |
| Luo Xiuquan,Liao Qingkang,Liang Tingbao Institute of Geology,Chinese Academy of Geological Sciences,Beijing Regional Geological Survey Party,Guangxi Bureau of Geology and Mineral Resources.Geological Age Table of the Darongshan-Shiwandashan Granitic Batholith in Guangxi Province[J].Acta Petrologica Et Mineralogica,1992,11(1):31-42. |
| |
| Authors: | Luo Xiuquan Liao Qingkang Liang Tingbao Institute of Geology Chinese Academy of Geological Sciences Beijing Regional Geological Survey Party Guangxi Bureau of Geology and Mineral Resources |
| |
| Institution: | Luo Xiuquan,Liao Qingkang,Liang Tingbao Institute of Geology,Chinese Academy of Geological Sciences,Beijing 100037 Regional Geological Survey Party,Guangxi Bureau of Geology and Mineral Resources 546300 |
| |
| Abstract: | According to concept of unite and super-unite, the Darongshan-Shiwanda-shan granitic batholith in Guangxi is divided into Shinan, Kuishan, Liuwan-shan and Wangchong super-unites, where the first three super-unites couldbe incorporated in the Darongshan-Shiwandashan rockgroup. Eech super-uniteconsists of several unites. The ages for these unites have been systematicallydetermined by means of 40~Ar/39~Ar step-heating dating and K-Ar dating.Based on these data, a isotopic geological age table of the area is establi-shed. The age table shows that emplacement age of the Darongshan-Shiwanda-shan rockgroup ranges from 258. Ma of upper Permian to 231 Ma of middleTrias and its duration is about 27 Ma. There is the feature of parallel evolu-tion between super-unites in the Darongshan-Shiwandashan rockgroup.Wangchong super-unite formed in 259 Ma of lower Permian. |
| |
| Keywords: | granite super-unite dating geological age table |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《岩石矿物学杂志》浏览原始摘要信息 |
| 点击此处可从《岩石矿物学杂志》下载免费的PDF全文 |
|
