| 赣东北万年地区万年群的建立及其意义 |
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| 引用本文： | 吴新华,楼法生,刘春根,赵炼忠.赣东北万年地区万年群的建立及其意义[J].地质通报,2005,24(9):819-825. |
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| 作者姓名： | 吴新华 楼法生 刘春根 赵炼忠 |
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| 作者单位： | 1. 江西省地质调查研究院,江西,南昌,向塘,330201
2. 江西省地勘局赣西地质调查大队,江西,南昌,向塘,330201 |
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| 基金项目： | 中国地质调查局《1∶25万景德镇市幅、南昌市幅、上饶市幅区域地质调查》项目(编号:2001300002091)资助 |
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| 摘 要： | 万年群是发育在江南复合混杂岩带中之赣东北进贤——万年地区的一套中元古代蓟县纪浅变质岩系。据其岩性组合、沉积环境等特征自下而上进一步划分为枫树岭组、牛头岭组、皮库组和程源组，岩石地球化学特征反映其大地构造环境为大陆岛弧——弧后盆地，其层位与弧后盆地之双桥山群安乐林组、修水组，溪口岩群，火山岛弧的双溪坞群和弧间盆地的张村群相当。但岩性组合差异甚大，属同时异相的产物。万年群的建立为华南中元古代地层的划分对比提供了新的思路。
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| 关 键 词： | 万年群 中元古界 地层对比 赣东北万年地区 |
| 文章编号： | 1671-2552(2005)09-0819-07 |
| 修稿时间： | 2004年10月27 |
Establishment of the Wannian Group in the Wannian area,northeastern Jiangxi, China and its significance. |
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| WU Xinhu,LOU Fasheng,LIU Chungen,ZHAO Lianzhong . Jiangxi Institute of Geological Survey,Xiangtang,Nanchang,Jiangxi,Chin,. Western Jiangxi Geological Survey Party,Jiangxi Bureau of Geology and Mineral Exploration and Development,Xiangtang,Nanchang,Jiangxi,China.Establishment of the Wannian Group in the Wannian area,northeastern Jiangxi, China and its significance.[J].Geologcal Bulletin OF China,2005,24(9):819-825. |
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| Authors: | WU Xinhu LOU Fasheng LIU Chungen ZHAO Lianzhong Jiangxi Institute of Geological Survey Xiangtang Nanchang Jiangxi Chin Western Jiangxi Geological Survey Party Jiangxi Bureau of Geology and Mineral Exploration and Development Xiangtang Nanchang Jiangxi China |
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| Abstract: | The Wannian Group is a low- grade metamorphic series of the Mesoproterozoic Jixian Period in the Jinxian- Wanni- an area,northeastern Jiangxi,in the Jiangnan composite migmatite belt. According to its rock association and sedimentary envi- ronment,the group may be subdivided in ascending order into the Fengshuling Formation,Niutouling Formation,Piku For- mation and Chengyuan Formation. The rock geochemistry reflects that: its tectonic environment was the continental island arc- back- arc basin, and its horizon is equivalent to the Anlilin Formation, Xiushui Formation and Xikou Formation of the Shuangqiaoshan Group- complex, Shuangxiwu Group- complex of the volcanic arc and Zhangcun Group- complex of the back- arc basin but their rock associations are quite different,belonging to the synchronous and heteropic products. The estab- lishment of the Wannian Group provides a new idea for the stratigraphic division and correlation of the Mesoproterozoic strata in South China. |
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| Keywords: | Wannian Group Mesoproterozoic stratigraphic correlation Wannian area northeastern Jiangxi |
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