Abstract：The Wayue village belongs to the Chaya County,Changdu City,Tibet. Through remote sensing interpretation,we can intuitively observe its special river topography:“solitary mountain” and ring-shaped negative land. According to the survey,typical river deposits were found in the negative land. Identified as the palaeoriver channel landform. In addition,special river-lake confluence deposits were found at the mouth of the ancient channel,indicating that the river was blocked in history,providing clues to the cause of the river diversion,and inferring that the fluvial environments at that time were extremely turbulent,with several flooding periods. During the intermittent period,we speculates that it might have been related to the last glacial period. Combined with remote sensing interpretation and geological background,the river evolution model of the Wayue village of the Lancang River is finally summarized. Because Wayue village is located along the national Sichuan-Tibet Railway,engineering geology is of great significance. The research results presented in this article are of great significance for ensuring the smooth progress and safety of railway projects.
Yang Yu-Chuan,Zhao De-Jun,Wang Qi-Yu et al. Analysis on evolution of special geomorphology of an ancient river channel in Wayue village,Chaya County, Tibet[J]. JOPC, 2021, 23(5): 1038-1047.
[1] 陈松,陈剑,刘宏,马俊学. 2016. 堰塞湖溃坝堆积物的粒度特征及其沉积环境: 以雪隆囊古堰塞湖为例. 冰川冻土, 38(2): 509-516. [Chen S,Chen J,Liu H,Ma J X. 2016. Grain size features and sedimentary environment of the sediments caused by outburst of barrier lake: a case study of the ancient barrier lake(Xuelongnang Lake). Journal of Glaciology and Geocryology, 38(2): 509-516] [2] 丁莹莹,张绪教,何泽新,胡道功,王超群. 2017. 末次冰期河流下切行为对气候变化的响应模式. 现代地质, 31(2): 394-405. [Ding Y Y,Zhang X J,He Z X,Hu D G,Wang C Q. 2017. River incision behavior response to climate change during the Last Glacial Period. Geoscience, 31(2): 394-405] [3] 李志威,王兆印,潘保柱. 2012. 牛轭湖形成机理与长期演变规律. 泥沙研究,37(5): 16-25. [Li Z W,Wang Z Y,Pan B Z. 2012. Formation mechanism and long-term evolution of oxbow lakes. Journal of Sediment Research,37(5): 16-25] [4] 单婉婉. 2018. 沂河沂水—汤头段埋藏古河道特征. 山东师范大学硕士学位论文. [Shan W W. 2018. Characteristics of buried paleoriver channel in Yishui-tangtou section of Yi river. Masteral dissertation of Shandong Normal University] [5] 施雅风,郑本兴,李世杰,叶佰生. 1995. 青藏高原中东部最大冰期时代高度与气候环境探讨. 冰川冻土, 17(2): 97-112. [Shi Y F,Zheng B X,Li S J,Ye B S. 1995. Studies on altitude and climatic environment in the middle and east parts of Tibetan Plateau during Quaternary Maximum Glaciation. Journal of Glaciology and Geocryology, 17(2): 97-112] [6] 施雅风,郑本兴,姚檀栋. 1997. 青藏高原末次冰期最盛时的冰川与环境. 冰川冻土, 19(2): 97-113. [Shi Y F,Zheng B X,Yao T D. 1997. Glaciers and the environment during the peak of the last glacial period on the Qinghai-Tibet Plateau. Glaciers and Soils, 19(2): 97-113] [7] 王苏民,施雅风,沈吉. 1994. 青藏高原东部800 ka来古气候与古环境变迁的初步研究. 见: 青藏项目专家委员会编. 青藏高原形成演化、环境变迁与生态系统研究. 北京: 科学出版社,236-248. [Wang S M,Shi Y F,Shen J. 1994. A preliminary study on the paleo-climate and paleo-environmental changes in the eastern Qinghai-Tibet Plateau since 800 ka. In: the Expert Committee of the Qinghai-Tibet Project(eds). The Formation and Evolution of the Qinghai-Tibet Plateau,Environmental Changes and Ecological System Research. Beijing: Science Press,236-248] [8] 吴锡浩,王富模,安蓝生. 1992. 晚新生代青藏高原隆升的阶段和高度. 见: 刘东生,安芷生. 黄土·第四纪地质·全球变化. 北京: 科学出版社,1-13. [Wu X H,Wang F M,An L S. 1992. The stage and height of the uplift of the Qinghai-Tibet Plateau in the Late Cenozoic. In: Liu D S,An Z S(eds). Loess,Quaternary Geology and Global Change. Beijing: Science Press,1-13] [9] 魏亚刚. 2016. 澜沧江中上游河流阶地序列及其与构造抬升的关系. 辽宁师范大学硕士学位论文. [Wei Y G. 2016. River terrace sequence in upstream of Lancang River and its relevance with structural uplifting. Masteral dissertation of Liaoning Normal University] [10] 许会,陈剑,崔之久,郭佩. 2019. 堰塞湖沉积物粒度特征分析: 以岷江上游叠溪古堰塞湖为例. 沉积学报, 37(1): 51-61. [Xu H,Chen J,Cui Z J,Guo P. 2019. Grain size characteristics of sediments in a dammed lake: a case study of the Diexi ancient dammed lake upstream of the Minjiang River. Acta Sedimentologica Sinica, 37(1): 51-61] [11] 中国科学院青藏高原综合科学考察队. 1983. 西藏第四纪地质. 北京: 科学出版社. [Chinese Academy of Sciences Qinghai-Tibet Plateau Comprehensive Scientific Expedition Team. 1983. Quaternary Geology of Tibet. Beijing: Science Press] [12] 钟湖平,吉锋. 2012. 大渡河加郡古堰塞湖沉积特征及演变过程初探. 中国水运(下半月), 12(4): 182-184. [Zhong H P,Ji F. 2012. Preliminary study on the sedimentary characteristics and evolution process of the ancient barrier lake in Jiajun County of Dadu River. China Water Transport(second half of the month), 12(4): 182-184] [13] Lambeck K,Yokoyama Y,Tony Purcell. 2002. Into and out of the Last Glacial Maximum: sea-level change during Oxygen Isotope Stages 3 and 2. Quaternary Science Reviews, 21(1): 343-360. [14] Kochel R C,Miller J R. 1997. Geomorphic responses to short-term climatic change: an introduction. Geomorphology, 19(3): 171-173.
