Malham Cove, Yorkshire, UK #2
by Richard Wiggins
Title
Malham Cove, Yorkshire, UK #2
Artist
Richard Wiggins
Medium
Photograph - Photography
Description
Malham Cove, Yorkshire Dales National Park.
The Cove is located in the Pennines, which are the backbone of Northern England.
Carboniferous limestone is made of blocks of rock. The clear horizontal lines are called planes and the vertical cracks are called joints. The rock is permeable which means water can pass through the lines of weakness - the bedding planes and joints.
Rainwater is a weak carbonic acid which reacts with the limestone as it passes through the rock. It dissolves the stone, enlarging joints and bedding planes. On the surface the chemical weathering widens and deepens cracks to form Grykes. This leaves exposed blocks of limestone called Clints and the resulting pattern of blocky rock is called a limestone pavement.
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September 9th, 2015
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