The deep emerald tone of Lake Louise in Banff National Park is attributed to the "rock flour" that is carried from the flow and trickle of the melted glaciers that stretch above the water.

公园里的路易斯湖因为“岩石粉”而呈现出深祖母绿色。“岩石粉”卷着水面上的冰块顺流而下。

youdao

The company said the closure was necessitated by weak volcanic rock above the ore deposit which allowed water to flow into the mine.

FORBES: The perils of mining