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Carboniferous Limestone is an organic, sedimentary rock. This means it was formed from the remains of tiny shells and micro-skeletons deposited on the bed of a shallow tropical sea. They were compressed to form solid rock and as a result the rock is very hard. Limestone is formed in layers - called bedding planes. These bedding planes contain vertical cracks called joints. Joints and bedding planes make the rock permeable. Limestone areas are weathered when rainwater, which contains a weak carbonic acid reacts with the limestone as a result when it rains the limestone is dissolved. Rainwater then erodes the joints and bedding planes. In doing this Karst scenery is created, and a whole manner of surface and subsurface features are formed. Sedimentary limestone deposits can be extensive, covering hundreds of square miles, and can be relatively uniform in thickness and quality. Therefore, limestone quarries can be large and long lived, mining limestone layers that can be hundreds of feet thick over areas of several square miles
The Important Questions
1; At what angle does this feature run to Earth and what direction does the face run (you can use a protractor and compass for this)
2; How many prominent beds are visible?
3; Estimate the size of the deepest bed in Metric, inches or feet and give the number of this bed No 1 being at ground level
4; Please estimate the overall height and width of this feature
5; Describe the colour and texture of the rocks at the location
6; Although no longer required a photo without giving the information away, would prove the visit
Please email the answers using the email address in my profile
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