| The~(40)Ar/~(39)Ar geochronology constraint and geological significance of mylonites in Shangyi-Chicheng fault belt on the north of North China Craton |
| |
| 作者姓名： | 胡玲 宋鸿林 颜丹平 胡道功 |
| |
| 作者单位： | 胡玲,宋鸿林,颜丹平(Faculty of Geology and Resources, China University of Geosciences, Beijing 100083, China);胡道功(Institute of Geomechanics, Chinese Academy of Geological Sciences, Beijing 100081, China) |
| |
| 摘 要： | The Shangyi-Chicheng fault belt extending along the south boundary of the Inner Mongolia axis on the north of the North China Craton was formed in the Middle Proterozoic. This fault has special geological significance1) in the evolution of the North China…
|
The 40Ar/39Ar geochronology constraint and geological significance of mylonites in Shangyi-Chicheng fault belt on the north of North China Craton |
| |
| Abstract: | A dating of two biotite samples taken from the meso- and low-temperature myloniteswithin the Shangyi-Chicheng fault belt on the north of the North China Craton yields 40Ar/39Ar iso-topic ages of (399 1) Ma and (263 2) Ma, respectively. These data reflect an Early Devonian deformation and a Late Carboniferous retrograde metamorphism event along the fault, suggesting that the tectonic activities of the North China Craton in Paleozoic should be reconsidered. |
| |
| Keywords: | Shangyi-Chicheng fault belt mylonite 40Ar/39Ar isotopic ages re-activity fault |
| 本文献已被 万方数据 等数据库收录！ |
