对成像的分析显示，水流冲刷出了一条溪谷，这条溪谷与一个山谷相连，流水沉积物还形成一个的三角洲。
Analysis of the images has shown the water carved out the canyon in which it was found, which then opened out into a valley depositing sediment which formed a delta.
残余的原油深埋在沙子和沉积物中，它们可能会随时再被冲刷出来。
Residual oil buried in sand or sediment may resurface over time.
而融水将长久以来冰川冲刷的沉积物带到了海岸，浑浊了水域，于赛了航道。
And meltwater carries the sediment scoured long ago by the glaciers to the coast, where it clouds the water and silts up once-navigable channels.
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