Channel samples of the Springfield (No. 9) and Herrin (No. 11) (Pennsylvanian, Desmoinesian/Westphalian D) coals were acquired in three mines each in the Western Kentucky coal field. Pyrite was characterized petrographically in terms of its size, form, and microlithotype association. Within each coal seam significant variations in the amount of pyrite of certain forms occurred between the sites. Pyritic sulfur as determined chemically did not exhibit significant variation between the seams or between the sites. The variation in dendritic pyrite in vitrite plus clarite between seams and between sites was highly significant and the variation in framboidal pyrite in vitrite plus clarite between sites was also highly significant.
|Number of pages||16|
|Journal||International Journal of Coal Geology|
|State||Published - May 1987|
Bibliographical noteFunding Information:
The research was supported by grants from the Kentucky Energy Cabinet to the Kentucky Energy Cabinet Laboratory and by U.S. Department of Energy contract DE FG22-80 PC30223.
ASJC Scopus subject areas
- Fuel Technology
- Economic Geology