首页> 外文会议>Conference on Sediment Dynamics and the Hydromorphology of Fluvial Systems >The use of ~(137)Cs and ~(210)Pbex to investigate sediment sources and overbank sedimentation rates in the Teesta River basin, Sikkim Himalaya, India
【24h】

The use of ~(137)Cs and ~(210)Pbex to investigate sediment sources and overbank sedimentation rates in the Teesta River basin, Sikkim Himalaya, India

机译:使用〜(137)CS和〜(210)PBEX来调查Teesta River盆地,锡金喜马拉雅省,印度的沉积物来源和Overbank沉降率

获取原文

摘要

This paper presents results from an investigation of suspended sediment sources and overbank sedimentation rates within the Teesta River basin, India. Sediment source fingerprinting techniques were used to provide information on the primary sources of the suspended sediment exported from the mountain part of the basin. Erosion of areas disturbed by mass movement provided the major source of the suspended sediment load of the river and channel and gully erosion were also important sources. The 210Pbex, 226Ra and 137Cs depth distributions in sediment cores collected from flood plains within the Teesta River basin have been used to derive estimates of overbank sedimentation rates. The estimated sedimentation rates at these flood plain sites vary from 0.21 cm year"1 for the upper flood plain level at the site near Boogadong to 3.56 cm year"1 at the site near the confluence of the Teesta River with the Great Rangit River.
机译:本文提出了印度Teesta River盆地内悬浮沉积物来源和超银行沉降率的研究。沉积物源指纹识别技术用于提供有关从盆地山部分出口的悬浮沉积物的主要来源的信息。受群众扰乱的区域的侵蚀提供了河流和通道悬浮沉积物负荷的主要来源,沟渠侵蚀也是重要的来源。 210pbex,226ra和137cs在Teesta River盆地中的洪水平原中收集的沉积物核心深度分布已被用来推导过度堆积沉降率的估计。这些洪水普通地点的估计沉降率从0.21厘米的沉积物“1在博伊多德河附近的网站上的上层普通普通水平为3.56厘米”1,在Teesta河流与伟大的朗格特河附近的网站附近。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号