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在黄河壶口瀑布“十里龙槽”两侧的石质河床上,常常能看到一些口小肚大的石窝窝。小者如杯,大者如瓮,或竖直向下,或倾斜一边。洪水过后,泥沙沉淀,碧清透底,水平如镜,能映照人影,这便是“壶口十景”之一:石窝宝镜。这些石窝窝在地质上称为锅穴。在石质河床不同岩石的节理交汇部位,岩性疏松,结合力减弱,当河水携带沙石、砾石推移至此,并有特定的涡
In the Yellow River Hukou Waterfall “Shili Longtou ” on both sides of the stone bed, you can often see some small mouth belly stone nest. The smaller one is like a cup, the bigger one is an urn, or vertically down or tilted sideways. After the flood, sediment deposition, Biqing through the end, the level of the mirror, can mirror the silhouette, which is “Hukou ten King ” one: stone nest treasure mirror. These stone nest nest geologically known as the pot. In the intersection of the joints of different rocks in the stony riverbed, the lithology is loose and the binding force is weakened. When the river carries the sand and gravel, the gravel moves to this point and there is a specific vortex