Boulby Underground Laboratory | Wikipedia audio article
Channel: wikipedia tts
Date: 31/12/2018

This is an audio version of the Wikipedia Article:
https://en.wikipedia.org/wiki/Boulby_Mine


00:02:00 1 History
00:04:06 2 Transport
00:04:43 3 Underground laboratory
00:06:10 4 Health and safety
00:07:40 5 See also



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SUMMARY
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Boulby Mine is a 200-hectare (490-acre) site located just south-east of the village of Boulby, on the north-east coast of the North York Moors in Redcar and Cleveland, England. It is run by Cleveland Potash Limited, which is now a subsidiary of Israel Chemicals Ltd.
It produces half of the United Kingdom's output of potash, an agricultural fertiliser. The mined ore consists of 35–45% sylvite ("potash", specifically potassium chloride) and 45–55% halite (rock salt, or sodium chloride). The rock salt is extracted as a by-product and used across the region as a de-icing agent on roads in winter conditions.
In early 2016, polyhalite mining commenced. Polyhalite, marketed as Polysulphate by ICL, is a natural multi-nutrient fertiliser containing potassium, calcium, magnesium, and sulfur. It is not a mixture of sulfates. Polysulphate is sold in both granular and standard (powder) grades, worldwide.
The mine has 1,001 employees and can produce up to one million tonnes of potash each year.
At 1,400 metres (4,600 ft) deep, it is the second deepest mine of any kind in Europe, and has a network of underground roads extending under the North Sea, totalling 1,000 kilometres (620 mi) in length.Cleveland Potash Limited had a reported turnover of £194 million in 2013, up from £162 million the year before. However, despite the increased turnover, the company suffered a total pre-tax loss of £194 million. This was the result of a huge £200 million impairment charge arising from a significant fall in potash prices.