Beach Evolution
The shoreline is where the land meets the sea and it is continually changing. Over the long term, the water is eroding the land. Beaches represent a special case, in that they exist where sand accumulated from the same processes that strip away rocky and sedmientary material. I.e., they can grow as well as erode. River deltas are another exception, in that silt that erodes up river can accrete at the river's outlet and extend ocean shorelines. Catastrophic events such as tsunamis, hurricanes and storm surges accelerate beach erosion, potentially carrying away the entire sand load. Human activities can be as catastrophic as hurricanes, albeit usually over a longer time interval.
Read more about Beach Evolution: Relative Sea Level Changes
Famous quotes containing the words beach and/or evolution:
“We often love to think now of the life of men on beaches,—at least in midsummer, when the weather is serene; their sunny lives on the sand, amid the beach-grass and bayberries, their companion a cow, their wealth a jag of driftwood or a few beach plums, and their music the surf and the peep of the beech-bird.”
—Henry David Thoreau (1817–1862)
“The evolution of humans can not only be seen as the grand total of their wars, it is also defined by the evolution of the human mind and the development of the human consciousness.”
—Friedrich Dürrenmatt (1921–1990)