| 漠河盆地中侏罗统砂岩地球化学特征及物源属性分析 |
| |
| 引用本文： | 和钟铧,王玉芬,侯伟.漠河盆地中侏罗统砂岩地球化学特征及物源属性分析[J].沉积与特提斯地质,2008,28(4):93-100. |
| |
| 作者姓名： | 和钟铧 王玉芬 侯伟 |
| |
| 作者单位： | 吉林大学,地球科学学院,吉林,长春,130061 |
| |
| 基金项目： | 国家油气专项
|
| |
| 摘 要： | 漠河盆地的中侏罗统.砂岩具有高SiO2、低Fe2O3、FeO 、MgO 和轻稀土元素富集, 重稀土相对亏损,显示弱的负Eu异常的特征.综合分析砂岩的常量元素、微量元素和稀土元素的地球化学特征,经构造判别图解,笔者认为漠河盆地中侏罗统沉积时物源区具有大陆岛弧和活动大陆边缘的构造环境.盆地南侧的额尔古纳地块北缘古生代杂岩可能是盆地的主要物源.
|
| 关 键 词： | 地球化学 中侏罗统砂岩 物源分析 漠河盆地 |
Geochemistry and provenance analysis of the Middle Jurassic sandstones in the Mohe Basin,Heilongjiang |
| |
| HE Zhong-hu,WANG Yu-fen,HOU Wei.Geochemistry and provenance analysis of the Middle Jurassic sandstones in the Mohe Basin,Heilongjiang[J].Sedimentary Geology and Tethyan Geology,2008,28(4):93-100. |
| |
| Authors: | HE Zhong-hu WANG Yu-fen HOU Wei |
| |
| Institution: | HE Zhong-hua,WANG Yu-fen,HOU Wei (College of Earth Sciences,Jilin University,Changchun 130061,Jilin,China) |
| |
| Abstract: | The Middle Jurassic sandstones in the Mohe Basin,Heilongjiang are characterized by high contents of SiO2 and low contents of Fe2O3,FeO and MgO,LREE enrichment,HREE depletion and slightly negative Eu anomaly.The geochemical signatures of major and trace elements and REEs,in integration with the discrimination diagrams for tectonic settings have mirrored that the Middle Jurassic deposits were derived from the continental island arcs and active continental margins.The Palaeozoic complexes on the northern margi... |
| |
| Keywords: | geochemistry Middle Jurassic sandstone provenance analysis Mohe Basin |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《沉积与特提斯地质》浏览原始摘要信息 |
| 点击此处可从《沉积与特提斯地质》下载免费的PDF全文 |
|
