| 大别山东麓河流阶地初步研究 |
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| 引用本文： | 杨源源,李鹏飞,郑海刚,潘浩波,路 硕,疏 鹏.大别山东麓河流阶地初步研究[J].大地测量与地球动力学,2022,42(12):1294-1299. |
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| 作者姓名： | 杨源源 李鹏飞 郑海刚 潘浩波 路 硕 疏 鹏 |
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| 摘 要： | 基于遥感解译、野外调查、光释光(OSL)测年和无人机地形测绘，对大别山东麓桐城-太湖段河流阶地发育特征与变形情况进行初步研究。结果表明：1）大别山东麓河流阶地发育较差，各中小型河流普遍发育一级阶地，少数大型河流发育2级阶地；2）大别山东麓河流T1阶地形成时代为晚更新世晚期至全新世早期(约25 ka BP~12 ka BP)，T2阶地形成时代为晚更新世中期(约55 ka BP)；3）郯庐断裂带大别山东麓段自河流T2阶地形成以来未发生明显活动，该段最新活动时代为中更新世。
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| 关 键 词： | 大别山 河流阶地 郯庐断裂带 晚第四纪 |
Preliminary Study on River Terraces at the Eastern Foot of Dabie Mountain |
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| YANG Yuanyuan,LI Pengfei,ZHENG Haigang,PAN Haobo,LU Shuo,SHU Peng.Preliminary Study on River Terraces at the Eastern Foot of Dabie Mountain[J].Journal of Geodesy and Geodynamics,2022,42(12):1294-1299. |
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| Authors: | YANG Yuanyuan LI Pengfei ZHENG Haigang PAN Haobo LU Shuo SHU Peng |
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| Abstract: | Based on remote sensing interpretation, field investigation, optically simulated luminescence(OSL) dating and UAV topographic mapping, we carry out a preliminary study on the development characteristics and deformation of river terraces in Tongcheng-Taihu section at the eastern foot of Dabie mountain. The results show: 1) The river terraces in the eastern foot of Dabie mountain are poorly developed; the first-class terraces are generally developed in small and medium-sized rivers, and the second-class terraces are developed in a few large rivers. 2) The formation age of T1 terrace of the river in the eastern foot of Dabie mountain is from the late Pleistocene to the early Holocene(about 25 ka BP~12 ka BP), and the formation age of T2 terrace is the middle of late Pleistocene(about 55 ka BP). 3) There has been no obvious activity at the eastern foot of Dabie mountain of Tanlu fault zone since the formation of T2 terrace of the river. The latest active age of the fault in this section is the middle Pleistocene. |
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| Keywords: | Dabie mountain river terrace Tanlu fault zone late Quaternary |
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