| 应用“构造-气候旋回”年代学方法确定河流阶地形成时代的初步研究 |
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| 引用本文： | 刘小凤,刘百篪.应用“构造-气候旋回”年代学方法确定河流阶地形成时代的初步研究[J].西北地震学报,2001,23(4):395-403. |
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| 作者姓名： | 刘小凤 刘百篪 |
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| 作者单位： | 中国地震局兰州地震研究所, |
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| 基金项目： | 国家重点基础研究项目(95-13-01-04);中国地震局"九五"重点课题(95-04-10-03) |
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| 摘 要： | 应用“构造－气候旋回”年代学方法确定了祁连山地区河流阶地形成时代和抬升速率,探讨了应用该方法确定阶地形成时代的可能性,结果表明：应用该方法确定河流阶地形成时代基本可行,只是对于低级阶地形成时代的拟合结果需用实测值来校正,第四纪以来祁连山地区的构造抬升呈间歇性,经历了4个较强烈的构造抬升期。
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| 关 键 词： | 构造－气候旋回 年代学 祁连山地区 河流阶地 抬升速率 层状地貌 |
| 文章编号： | 1000-0844(2001)04-0395-09 |
| 收稿时间： | 2000/11/13 0:00:00 |
| 修稿时间： | 2000年11月13 |
A PRELIMINARY STUDY ON TERRACES FORMED AGES WITH THE CHRONOLOGE METHOD OF TECTONIC-CLIMATE CIRCLE |
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| LIU Xiao-feng and LIU Bai-chi.A PRELIMINARY STUDY ON TERRACES FORMED AGES WITH THE CHRONOLOGE METHOD OF TECTONIC-CLIMATE CIRCLE[J].Northwestern Seismological Journal,2001,23(4):395-403. |
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| Authors: | LIU Xiao-feng and LIU Bai-chi |
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| Institution: | Lanzhou Institute of Seismology, CSB, Lanzhou 730000, China and Lanzhou Institute of Seismology, CSB, Lanzhou 730000, China |
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| Abstract: | The formed ages and uplift rates of river terraces of Qilianshan region are determined with the chronologe methed of tectonic climate circle.The determined ages of the terraces are tested and compared with the results determined by using other methods.The studies indicate the method is practical to determine formed ages of terraces,but the results for low terraces need correcting with field measure data.Tectonic uplift is intermittent and go through four powerful stages since Quaternary period in Qilianshan region. |
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| Keywords: | Tectonic climate circle Chronology Qilianshan region Terrace of river |
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