Structural Evolution of Northern Jiangnan Uplift: Evidence from ESR Dating
详细信息
- 责任者：Zhu Qingbo (Key Laboratory of Tectonic and Petroleum Resources ; China University of Geosciences ; Wuhan 430074 ; China) ; Yang Kunguang
- 刊名：Geoscience
- 出版年：2011
- 卷期：25(1)
- 关键词：构造演化 ; structural evolution ; ESR定年 ; ESR dating ; 华南地区 ; South China
- 页码：p.31-38
- 图表：4 illus., 1 table, 32 refs.
- 分类号：0300
- issnNo：ISSN1000-8527
- isbnNo：CN11-2035/P
摘要
Thirty-five samples from tectogenetic α quartz veins in northern Jiangnan uplift have been studied by using ESR dating method. The results show that the ESR ages of α quartz veins from northern Jiangnan uplift change between 195.8 Ma and 3.4 Ma, mainly from 75 Ma to 3.4 Ma (Himalayan). Combined ESR dating results with other geological evidence, the evolution history of northern Jiangnan uplift in the Cenozoic can be classified into two phases. The Indosinian and Yanshanian structures had been intensely reconstructed during Himalayan. Entire eastern China experienced distinct tectonic movement, including southern North China, mid-lower Yangtze and northern Jiangnan uplift. The ESR dating results are consistent with geological evidence, which checked up the dependability of ESR dating.
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