全文快速搜索:          
引用本文:韩建恩1 邵兆刚1 朱大岗1 孟宪刚1 余 佳1 王 津1 吕荣平2 钱 程3 贺承广4. 黄河源区河流阶地特征及源区黄河的形成[J]. 中国地质, 2013, 40(5): 1531-1541.
HAN Jian-en1, SHAO Zhao-gang1, ZHU Da-gang1, MENG Xian-gang1, YU Jia1, WANG Jin1,LV Rong-ping2, QIAN Cheng3, HE Cheng-guang4. Characteristics of river terraces and formation of the Yellow River in the source region of Yellow River[J]. Geology in China, 2013, 40(5): 1531-1541(in Chinese with English abstract).
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  下载PDF阅读器  关闭
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 1585次   下载 2583 本文二维码信息
码上扫一扫!
分享到: 微信 更多
黄河源区河流阶地特征及源区黄河的形成
韩建恩1 邵兆刚1 朱大岗1 孟宪刚1 余 佳1 王 津1 吕荣平2 钱 程3 贺承广41,2,3,4
1.中国地质科学院地质力学研究所,北京100081;2.中核集团地矿事业部,北京100013;3.沈阳地质矿产研究所,辽宁沈阳 110034;4.河南省地质调查院,河南 郑州 450001
摘要:
提要:本文通过对黄河源区河流阶地的系统测量和研究,认为黄河源区黄河阶地主要由堆积阶地组成,少量侵蚀阶地,阶地拔河高度低,阶面比较开阔平坦。黄河自源头至入扎陵湖段仅发育一级河流阶地,从鄂陵湖出水口至黄河乡段发育两级河流阶地,从黄河乡以下至久治县东段发育三级河流阶地。结合ESR测年结果,黄河源区河流阶地形成的时间主要为中更新世晚期—全新世,T1河流阶地的形成时代约为1万年;T2河流阶地的形成时代为5.8~1.9万年;T3河流阶地的形成时代为16.1~2.5万年。河流阶地研究表明,黄河在源区形成较晚,可能为晚更新世晚期。
关键词:  黄河源区  河流阶地  黄河形成  青藏高原
DOI:
分类号:
基金项目:中国地质调查局项目“青藏高原气候变化湖泊沉积记录研究”(12120113006100)、“晚新生代构造气候变动对黄河水系 演化影响研究”(1212010711705)和地质力学研究所基本科研业务费项目“黄河源晚新生代河湖相地层序列及其环境意义”(DZLXJK200902)资助。
Characteristics of river terraces and formation of the Yellow River in the source region of Yellow River
HAN Jian-en1, SHAO Zhao-gang1, ZHU Da-gang1, MENG Xian-gang1, YU Jia1, WANG Jin1,LV Rong-ping2, QIAN Cheng3, HE Cheng-guang41,2,3,4
1. Institute of Geomechanics, Chinese Academy of Geological Sciences,Beijing 100081,China;2. Department of Geology & Mining, CNNC,Beijing 100013,China;3. Shenyang Center of China Geological Survey,Shenyang 110034,Liaoning,China;4. Geological Survey Institute of Henan Province,Zhengzhou 450001, Henan,China
Abstract:
Abstract:Based on the systematic measurement and research, this paper considers that the terrace of the Yellow River is composed mainly of the accumulation terraces and subordinately of erosion terraces in the source region of the Yellow River, the height of the terrace is low, and the surface of the terrace is relatively flat. First-level river terraces are only developed in the segment from the source of the Yellow River to the Gyaring Lake. Second-level river terraces are developed in the segment from the outlet of the Ngoring Lake to Yellow River Township. Third-level river terraces are developed in the segment from Yellow River Township to eastern Jigzhi County. Combined with ESR dating results, the authors hold that terraces of the source region of the Yellow River were formed mainly from late Middle Pleistocene to Holocene. T1 river terrace was formed about 10 kaB.P., T2 was formed from 58 kaB.P.~19 kaB.P., and T3 was formed from 161 kaB.P.~25 kaB.P. The study of river terraces has shown that the Yellow River of the source region was probably formed in late Late Pleistocene.
Key words:  source region of the Yellow River  river terraces  formation of the Yellow River  Tibetan Plateau