The meltwater did indeed cut through nearly 1km of ice, as some had hypothesised and others had doubted, forcing its way down thanks to its greater weight and density.

• 象有些人假设和另一些人怀疑的那样，融水确实穿过了几乎一公里的冰，由于其较大的重量和密度，迫使其向下流。