中文摘要：

在湖的盆决定沙滩山脉的起源能经常是有问题的。为胡昂基海·莱克的北方岸上的沙滩山脉的形成负责的沉积过程被使用渗透雷达(GPR ) 的地面调查。400 MHz GPR 天线被用来完成 0.04-0.08 m 的高垂直的分辨率。雷达地层学然后用地震地层学的原则被决定。雷达外形(RF ) 被分析思考，以及思考结束模式的内部配置和连续性决定。识别 RF 掉进三个组(倾向，水平、不规则) 。使倾向的组由显示使倾向了的 RF 组成思考。水平组由 RF 组成展出主要水平的思考。在不规则的组，思考典型地是弱的。有思考与的 RF 轻轻地，向陆地，在岸正常侧面的剧降作为 washover 表存款被解释。有陡峭地向陆地蘸、使 washover 脑叶成鳞状的思考的 RF 作为被解释。当冲洗没能进入水的重要身体，沉积完全在相对弄平的地形学上发生时， Washover 表发展。当冲洗进入地形学向陆地陡峭地在蘸的一个区域时， Washover 脑叶开发发生，并且沉积发生在 washover 表或以前的 washover 脑叶的表面上。当从垂直地并且旁边地叠的 washover 表和 washover 脑叶完全被形成，沙滩山脉存款被解释。他们被波浪主导的过程和沿岸的水流补充的第二等的冲洗过程形成。

英文摘要：

Determining the origin of beach ridges in lacustrine basins can often be problematic. The sedimen- tary processes responsible for formation of beach ridges on the north shore of Huangqihai Lake were investigated by using ground penetrating radar （GPR）. A 400 MHz GPR antenna was used to achieve a high vertical resolution of 0.044）.08 m. The radar stratigraphy was then determined using principles of seismic stratigraphy. The radar facies （RF） were determined by analyzing internal configuration and continuity of reflections, as well as reflection termination patterns. The identified RF fall into three groups （inclined, horizontal and irregular）. The inclined group consists of RF that display inclined reflections. The horizontal group consists of RF that exhibit predominantly horizontal reflections. In the irregular group, the reflections are typically weak. RF with reflections with gently landward dips in the shore-normal profile are interpreted as washover sheet deposits. RF with steeply landward-dipping and imbricated reflections are interpreted as washover lobes. Washover sheets develop when overwash fails to enter a significant body of water and sedimentation takes place entirely on the relatively flattened topography. Washover lobe development occurs when overwash enters a region in which topography dips steeply landward, and sedimentation takes place on the surface of washover sheets or previous washover lobes. The beach-ridge deposits are interpreted as being formed entirely from vertically and laterally stacked washover sheets and washover lobes. They were formed by wave-dominated processes and secondary overwash processes supplemented by longshore currents.