Organic Matter in a Coal Ball: Peat or Coal?

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Science  27 Aug 1982:
Vol. 217, Issue 4562, pp. 831-833
DOI: 10.1126/science.217.4562.831


Chemical analyses of morphologically preserved organic matter in a Carboniferous coal ball reveal that the material is coalified to a rank approximately equal to that of the surrounding coal. Hence, the plant tissues in the coal ball were chemically altered by coalification processes and were not preserved as peat.