german coal mining area

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  • Coal mining | Britannica.com

    Coal mining: Coal mining, extraction of coal deposits from the surface of Earth and from underground. Coal is the most abundant fossil fuel on Earth. Its predominant use has always been for producing heat energy.

  • Mining | Britannica.com

    Mining: Mining, process of extracting useful minerals from the surface of the Earth, including the seas. A mineral, with a few exceptions, is an inorganic substance occurring in nature that has a definite chemical composition and distinctive physical properties or molecular structure.

  • History of coal mining - Wikipedia

    The history of coal mining goes back thousands of years. It became important in the Industrial Revolution of the 19th and 20th centuries, when it was primarily used to power steam engines, heat buildings and generate electricity.

  • Coal - definition of coal by The Free Dictionary

    Define coal. coal synonyms, coal pronunciation, coal translation, English dictionary definition of coal. n. 1. a. A natural dark brown to black graphitelike material used as a fuel, formed from fossilized plants and consisting of amorphous carbon with various...

  • The Carpathian Connection - Pennsylvania

    After the Boom. Eastern Christians cling to their faith as time runs out on the former coal towns of Pennsylvania, reports Jacqueline Ruyak with photographs by Cody Christopulos

  • Mining | Define Mining at Dictionary.com

    Mining definition, the act, process, or industry of extracting ores, coal, etc., from mines. See more.

  • Mapping "The Hunger Games": Using location quotients to find ...

    Occupation location quotients. In addition to using industry data to see where coal mining employment is concentrated, you can use occupation data to search for District 12.

  • Coal mining - Wikipedia

    Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content, and, since the 1880s, has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production.