The Carboniferous - composed of plant debris(and...

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The Carboniferous: Coal Swamps and Glaciers The Carboniferous period (360 to 286 million years ago) in Europe is better known in North America as the Mississippian period and the Pennsylvanian period. The regression of the Mississippian seas from North America provided a natural break in deposition that was not echoed in Europe. In this segment the early (or lower) Carboniferous will equate to the Mississippian, and the late (or upper) Carboniferous will represent the Pennsylvanian. The Carboniferous takes its name from the widespread occurrence of coal deposits formed during this timespan in Europe and North America. Coal is a sedimentary rock
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Unformatted text preview: composed of plant debris (and occasionally material from other creatues) that was deposited in abog or swamp that had little biological activity at its bottom. This led to preservation of the plant leaves, stems, pollen and other structures, although with continued burial these structures become much less distinct. Time and pressure combine with chemical changes to turn the plant material into coal. Fluctuating sea-levels during the Carboniferous contributed to the preservation of many coal environments....
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