| 贺兰山三叠纪断陷盆地的沉积体系及古地理分析 |
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| 引用本文： | 苏春乾,刘仿韩.贺兰山三叠纪断陷盆地的沉积体系及古地理分析[J].地球科学与环境学报,1995(2). |
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| 作者姓名： | 苏春乾 刘仿韩 |
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| 作者单位： | 西安地质学院资源经济系 |
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| 摘 要： | 三叠纪贺兰山盆地是一个半地堑式沉积盆地。盆地中充填有冲积扇体系、河流体系及湖泊体系的沉积。沉积相带的分布与古地理格局均受边缘断裂作用所控制．盆地的西及西北部边缘为断陷沉积边缘，东南边缘为自然超覆边缘。
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| 关 键 词： | 贺兰山，冲积扇 湖泊洪水沉积 断陷盆地 掀斜运动，沉积体系 |
DEPOSITIONAL SYSTEM AND PALEOGEOGRAPHYANALYSIS OF THE FAULT BASIN IN THEHELANSHAN MOUNTAINS |
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| Su Chunqian, Liu Fanghan.DEPOSITIONAL SYSTEM AND PALEOGEOGRAPHYANALYSIS OF THE FAULT BASIN IN THEHELANSHAN MOUNTAINS[J].Journal of Earth Sciences and Environment,1995(2). |
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| Authors: | Su Chunqian Liu Fanghan |
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| Institution: | Xi'an College of Geology |
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| Abstract: | The Helanshan basin is a semi--graben take of basin. There are the pediments of the alluvial fan,river andlake systems in it. The distribution of the sedimentary factes belts and the paleogeographic province are aUcontrolled by the marginal fault function. The west and northwest edges of the basin are the fault dePOsitionalboundaries. The southeast edge is the natural overlaoping dePOsitional margin. |
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| Keywords: | Helanshan Mountains alluvial fan lacustrine flood deposits fault basin tilted movement I depositional system |
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