Economics
Because it is brittle, the use of Carboniferous Limestone for building stone tends to be limited to those areas where it is the most abundantly available rock. However it is extensively quarried for other purposes:
- It is crushed for roadstone and aggregate wherever it outcrops, particularly in the Mendips and north Wales.
- It is burned for lime in many places. In certain places (e.g. Tunstead in the Peak District, and Horton in Ribblesdale in the Pennines), it is sufficiently pure for production of chemical-grade lime.
- It is used in cement manufacture at plants in England (4), Wales (2), Scotland (1) and Ireland (4).
- In ground form, it is used for power industry flue-gas desulphurisation.
- In many places it is metalliferous, and has yielded lead (in the Peak District and Weardale), and copper (in North Wales, where important Bronze Age mines are to be found).
- It was important in the early Industrial Revolution when, following the inventions of Abraham Darby, it was used in combination with nearby coal and ironstone from the Coal Measures in the iron industry.
Read more about this topic: Carboniferous Limestone
Famous quotes containing the word economics:
“The new sound-sphere is global. It ripples at great speed across languages, ideologies, frontiers and races.... The economics of this musical esperanto is staggering. Rock and pop breed concentric worlds of fashion, setting and life-style. Popular music has brought with it sociologies of private and public manner, of group solidarity. The politics of Eden come loud.”
—George Steiner (b. 1929)
“Women’s battle for financial equality has barely been joined, much less won. Society still traditionally assigns to woman the role of money-handler rather than money-maker, and our assigned specialty is far more likely to be home economics than financial economics.”
—Paula Nelson (b. 1945)
“There is no such thing as a free lunch.”
—Anonymous.
An axiom from economics popular in the 1960s, the words have no known source, though have been dated to the 1840s, when they were used in saloons where snacks were offered to customers. Ascribed to an Italian immigrant outside Grand Central Station, New York, in Alistair Cooke’s America (epilogue, 1973)