Over time the river eroded out the debris, but we still see evidence of the lake in the landslide deposits as well as delta deposits coming out of the tributary valleys. The O.S.L..
时间过去，河流侵蚀碎片，但我们仍然能看到在支流峡谷中出来的滑坡沉积物和三角洲沉积物中湖泊的证据。
2
sample from the suspected delta deposit could give us information on when the landslide happened and the lake formed.
从疑似三角洲沉积物中提取的光释光样本能提供给我们信息，滑坡沉积物何时发生，湖泊何时形成。
3
The sedimentary facies can be classified into alluvial fan, fan delta, lake, stream and swamp.