Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1753268 | International Journal of Coal Geology | 2013 | 23 Pages |
Abstract
Detailed studies of cleat mineralisation suggest that fluids rich in Ca, Mg and Al were introduced relatively early in the seam's post-depositional history, associated with heat flow sufficient to alter the minerals in the coal and tonstein in the affected part of the seam section. The relatively uniform vitrinite reflectance profile observed through the seam section may indicate that the coal was already of high rank before the fluids were introduced, or that any localised heat effects on the organic matter associated with the changes in clay mineralogy were overprinted by subsequent wider-ranging rank advance processes.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Economic Geology
Authors
Asep K. Permana, Colin R. Ward, Zhongsheng Li, Lila W. Gurba,