Chemical Weathering - Pavement and Cave (UEB contracted)
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- Synopsis
- This is a two-page document showing how the action of acidic rain causes weathering and degradation of limestone rock. Dashed line image borders surround the diagrams. There is a locator dot shown, which will be at the top left of the page when the image is the correct way up. The first page is a labelled cross section diagram of limestone rock with water running through a cave and an area of limestone pavement on the surface of the rock. The second page shows an enlarged view of the limestone pavement in plan and cross section views. Page 1: On this page the limestone rock is shown in cross section. The rock occupies the bottom half of the page. In the centre right of the image is a stream of acidic water, represented by a heavy dashed line, flowing to the left down a hill. It falls into the mouth of a swallow hole to a cave caused by the water dissolving away the rock it flows through. It continues to the left and eventually streams out of the rock at the bottom left of the page. There are stony spikes on the roof and floor of the cave: a stalactite and stalagmite made by dripping water depositing its dissolved limestone. The surface of the rocky area runs across the centre of the page. It has been eroded by the action of acidic water and has vertical cracks going down into the rock, called joints and grykes. Page 2: There are two diagrams on this page. At the top of the page there is a plan view of the limestone pavement shown on page one. The pavement is criss-crossed by a network of cracks in a pattern of squares, giving the surface of the rock the appearance of street pavement. The square sections are called clints. At the bottom of the page the pavement is shown in a cross section side view. The deep cracks are joints and the shallower cracks are grykes.
- Copyright:
- 2011
Book Details
- Book Quality:
- Excellent
- Publisher:
- RNIB
- Date of Addition:
- 05/22/17
- Copyrighted By:
- RNIB
- Adult content:
- No
- Language:
- English
- Has Image Descriptions:
- No
- Categories:
- Earth Sciences
- Submitted By:
- Deborah Morton
- Proofread By:
- N/A
- Usage Restrictions:
- This is a copyrighted book.