| 新疆叶尔羌河上游全新世阶地的释光年代与河流下切速率 |
| |
| 引用本文： | 刘进峰,陈杰,王昌盛.新疆叶尔羌河上游全新世阶地的释光年代与河流下切速率[J].地震地质,2011,33(2):421-429. |
| |
| 作者姓名： | 刘进峰 陈杰 王昌盛 |
| |
| 作者单位： | 中国地震局地质研究所地震动力学国家重点实验室; |
| |
| 基金项目： | 地震动力学国家重点实验室自主研究课题(LED2010A04); 科技部国际科技合作计划项目(2008DFA20860); 地震行业科研专项(200808015)共同资助 |
| |
| 摘 要： | 采用细颗粒石英简单多片再生法对新疆叶尔羌河上游阶地进行了光释光测年,并在不同实验室进行了等效剂量对比测试,结果基本一致.测年结果显示,该阶地沉积形成于距今4.3～7.3ka,自阶地形成以来,河流下切(27±5)m,下切速率(6.3±1.2)mm/a.塔什库尔干河中上游河流的快速下切可能与慕士塔格山穹窿的快速隆升或第四纪...
|
| 关 键 词： | 河流阶地 光释光测年 叶尔羌河 下切速率 |
| 收稿时间： | 2011-04-26 |
| 修稿时间： | 2011-05-31 |
OPTICAL DATING OF THE HOLOCENE TERRACE SEDIMENTS AND THE INCISION RATE IN THE UPPER REACH OF THE YARKANT RIVER IN XINJIANG |
| |
| LIU Jin-feng,CHEN Jie,WANG Chang-sheng.OPTICAL DATING OF THE HOLOCENE TERRACE SEDIMENTS AND THE INCISION RATE IN THE UPPER REACH OF THE YARKANT RIVER IN XINJIANG[J].Seismology and Geology,2011,33(2):421-429. |
| |
| Authors: | LIU Jin-feng CHEN Jie WANG Chang-sheng |
| |
| Affiliation: | LIU Jin-feng CHEN Jie WANG Chang-sheng(State Key Laboratory of Earthquake Dynamics,Institute of Geology,China Earthquake Administration,Beijing 100029,China) |
| |
| Abstract: | The Tashkurgan-Yarkant River,which is the upper reach of the Tarim River,originates from the Karakoram Mountains in the west syntaxis of the Tibetan Plateau.Thick terrace sediments are widespread along the Tashkurgan-Yarkant River.These deposits contain geologic fingerprints that allow identification of the environmental changes and geologic hazards.However,few geochronological data was available on these sedimentations to allow us to build an irreproachable age model.4 samples of fine grains from one terra... |
| |
| Keywords: | River terrace OSL dating Tashkurgan-Yarkant River River incision rate |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
