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For many years, staff of the Indiana Geological Survey (IGS) have collected data on various physical and chemical parameters of Indiana coals including gas content. The gas content data were complied from several publications, as well as many unpublished data generated for various reseach project by Maria Mastalerz of IGS. Because additional data is obtained by the Indiana Geological Survey on an annual basis, interested users may wish to contact the Indiana Geological Survey for information on these more up-to-date sources. |