Research Note: An approach to integrated assessement of reservoir siltation: the Joaquín Costa reservoir as a case study
Research Note: An approach to integrated assessement of reservoir siltation: the Joaquín Costa reservoir as a case study
复制标题
研究报告：水库淤积综合评估方法：以 Joaquín Costa 水库为例
DOI：
--
复制
发表时间：
2004
期刊：
影响因子：
--
通讯作者：
J. Machı́n
中科院分区：
文献类型：
--
作者：
A. Navas;B. Garcés;J. Machı́n
摘要。1932年，埃塞拉河在比利牛斯山脉的山麓上筑起了水坝；自那以后，泥沙淤积使其储水量减少了三分之一。此次对华金科斯塔储层沉积物的研究是基于详细的沉积学检查和其他矿物学、粒度分布和储层底部堆积物质化学成分的分析。解释是基于在代表水库主要环境的地点收集的四个沉积物岩心的结果。已知洪水事件和水库管理数据的记录与137cs衍生的年表相结合。因此，可以将不同储层环境下的沉积记录归结为特定的年代，以及相类型和沉积物组分的一些主要变化。这种方法是评估地中海山区水库淤积过程和动态的第一种方法。关键词：水库淤积，矿物学，沉积学，沉积速率，137Cs，沉积物示踪，山地储层，西班牙比利牛斯山脉中部
Abstract. In 1932, the Esera river was dammed at the foothills of the Pyrenean External Ranges; since then, sedimentation has reduced its water storage capacity by a third. This study of the sediments in the Joaquin Costa reservoir has been based on detailed sedimentological examination and other analysis of mineralogy, grain size distribution and the chemical components of the materials accumulated at the bottom of the reservoir. Interpretations are based on results from four sediment cores collected at sites representative of the main environments in the reservoir. Records of known flood events and of reservoir management data have been combined with a 137Cs-derived chronology. Thus, it has been possible to ascribe the sedimentary record at the different reservoir environments to specific years, as well as some main changes in the facies types and sediment components. This methodology is a first approach to assessing siltation processes and dynamics in Mediterranean mountain reservoirs. Keywords: reservoir siltation, mineralogy, sedimentology,sedimentation rates, 137Cs, sediment tracing, mountain reservoir, central Spanish Pyrenees