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    characteristics of Xinjiang Ili mine in western area of China, a physical model of interstratified strata composed of soft rock and hard coal seam was ...
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  • The Geological Strata Mystery: Where Did All That Rock Come...

    As fossils are found in almost all strata, obviously these must have been...gradually mineralized into the brown or black rock which we now call coal...
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  • Coal - Wikipedia, the free encyclopedia

    Coal (from the Old English term col , which has meant "mineral of fossilized carbon" since the 13th century) is a c...FormationRanksContentEarly uses as fuel
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  • FOSSILS AND STRATA - 3

    Large rocks, not native to the area, are frequently found in coal beds. Coal and petroleum are only found in sedimentary stratathe only place fossils...
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  • ...Layers to the Stability of Coal Roadway in Soft Rock Strata

    characteristics of Xinjiang Ili mine in western area of China, a physical model of interstratified strata composed of soft rock and hard coal seam was ...
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  • ...Layers to the Stability of Coal Roadway in Soft Rock Strata

    characteristics of Xinjiang Ili mine in western area of China, a physical model of interstratified strata composed of soft rock and hard coal seam was ...
    Chat Now
  • ...Layers to the Stability of Coal Roadway in Soft Rock Strata

    characteristics of Xinjiang Ili mine in western area of China, a physical model of interstratified strata composed of soft rock and hard coal seam was ...
    Chat Now
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