| 江山—绍兴断裂带构造格局的新元古代SHRIMP锆石U-Pb年龄证据 |
| |
| 引用本文： | 高林志,张 恒,丁孝忠,刘燕学,张传恒,黄志忠,许兴苗,周宗尧.江山—绍兴断裂带构造格局的新元古代SHRIMP锆石U-Pb年龄证据[J].地质通报,2014,33(6):763-775. |
| |
| 作者姓名： | 高林志 张 恒 丁孝忠 刘燕学 张传恒 黄志忠 许兴苗 周宗尧 |
| |
| 作者单位： | 1.中国地质科学院地质研究所, 北京 100037；
2.中国地质大学（北京），北京 100083；
3.江西省地质调查院，江西 南昌 330201；
4.浙江省地质调查院，浙江 萧山 311203 |
| |
| 基金项目： | 中国地质调查局项目(编号:121201011120131);全国地层委员会项目(编号:1212011120142);全国油气基础地质研究与编图项目(编号:2011ZX05043-005) |
| |
| 摘 要： | 报道采自双溪坞群不同岩组岩石样品的锆石年龄,其中,平水组英安质凝灰岩SHRIMP锆石U-Pb年龄为908.2±6.8Ma,双溪坞群北坞组安山岩年龄为901.6±5.5Ma,双溪坞群章村组火山角砾岩安山质角砾岩年龄为899±8Ma,上覆河上镇群骆家门组底砾岩(花岗闪长岩)SHRIMP锆石U-Pb年龄为878.96±4.5Ma。通过年龄数据探讨位于该断裂带的构造背景,依据该年龄数据限定区域地层对比和构造演化序列。锆石U-Pb年龄和地球化学标示了江山—绍兴断裂带北侧双溪坞群的沉积地层,地球化学分析表明该群代表了新元古代早期华南洋的中间岛弧。上述年龄为江山—绍兴断裂带变质地层的对比增添了可靠的年龄依据。
|
| 关 键 词： | 江山—绍兴断裂带 双溪坞群 SHRIMP锆石U-Pb年龄 浙江 |
SHRIMP zircon U-Pb dating of the Jiangshan-Shaoxing faulted zone in Zhejiang and Jiangxi |
| |
| GAO Lin-zhi,ZHANG Heng,DING Xiao-zhong,LIU Yan-xue,ZHANG Chuan-heng,HUANG Zhi-zhong,XU Xing-miao,ZHOU Zong-yao.SHRIMP zircon U-Pb dating of the Jiangshan-Shaoxing faulted zone in Zhejiang and Jiangxi[J].Geologcal Bulletin OF China,2014,33(6):763-775. |
| |
| Authors: | GAO Lin-zhi ZHANG Heng DING Xiao-zhong LIU Yan-xue ZHANG Chuan-heng HUANG Zhi-zhong XU Xing-miao ZHOU Zong-yao |
| |
| Abstract: | This paper reports SHRIMP zircon U-Pb ages (908~878Ma) of andisite and tuff of the Early Neoproterozoic Shuanxiwu Group on the northern side of the Jiangshan-Shaoxing faulted zone and discusses the tectonic background and regional stratigraphic correlation and tectonic evolution of the Jiangshan-Shaoxing faulted zone. The SHRIMP U-Pb ages and geochemical characteristics indicate the Early Neoproterozoic inner arc of the Shuanxiwu Group on the northern side of the Jiangshan-Shaoxing faulted zone. The SHRIMP U-Pb dating data obtained by the authors can provide new evidence for the correlation of metamorphosed strata in the Jiangshan-Shaoxing faulted zone. |
| |
| Keywords: | Jiangshan-Shaoxing faulted zone Shuangxiwu Group SHRIMP zircon U-Pb ages Zhejiang Province |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《地质通报》浏览原始摘要信息 |
| 点击此处可从《地质通报》下载免费的PDF全文 |
