25 Feb 2015

Waterfall Moments

They say a waterfall is created when the softer under-rock erodes faster than the upper layer. As the soft rock is swept away, the hard rock is left unsupported. Eventually, it falls under its own weight combined with the weight of the water, and the waterfall moves upstream. Once the harder rock is all broken away, there won’t be a waterfall anymore. Just rapids at first, then a swift-flowing stream, then a gentle river. I

Pepper Darlington 0