Documented international enquiry on solid sedimentary fossil fuels; Coal: definitions, classifications, reserves-resources and energy potential
This paper deals with all solid sedimentary fossil fuels, i.e. coal, the main one for geological reserves and resources, peat, and oil shales. Definitions of coal ( < 50% ash) and coal seam (thickness and depth limits) are examined in view of an international agreement regarding new concepts for...
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| Format: | article |
| Language: | eng |
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2006
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| Online Access: | http://hdl.handle.net/10284/195 |
| Country: | Portugal |
| Oai: | oai:bdigital.ufp.pt:10284/195 |