Variations in Water Level of Dewar Lake, Chamoli, Central Lesser Himalaya, in the last 30 ka: Preliminary Results
作者: Bahadur Singh KotliaKamini Bisht
刊名: Journal of Climate Change, 2020, Vol.6 (1), pp.25-35
来源数据库: IOS Journal
DOI: 10.3233/JCC200004
关键词: Dewar lakeGrain-sizeLake water fluctuationsClimatic conditions
原始语种摘要: A continuous 3.6 m thick core from the water logged Dewar Lake at Chamoli (Uttarakhand) was retrieved to study its depositional history. The base of the sediment core is dated as ca. 30 ka BP. Based on the variation in the grain-size percentage, the core is dominated by silt over clay and sand. With a mean grain size of 5.38φ, the sediment shows very poor sorting, finely to symmetrically skewed and mesokurtic to leptokurtic kurtosis. Variation in the textural parameters throughout the core suggests climatically influenced deposition, hence five major litho-facies are reflected in the sediment core. During the phase 1, the lake water column was perhaps decreased gradually incorporating more silt to the lake through the presence of finer silt laminations indicating required energy...
全文获取路径: IOS Press 

  • conditions 条件式
  • Dewar 笛沃兑和威士忌
  • grain 颗粒
  • percentage 百分数
  • Grain 谷物
  • indicating 指示
  • sediment 沉积
  • whereas 鉴于
  • facies 
  • core 岩心