Circular 530 Channels
Revision as of 11:06, December 14, 2023 by Alan.Myers (talk | contribs) (Alan.Myers moved page Circular530/Channels to Circular 530/Channels without leaving a redirect)
| Geologic Disturbances in Illinois Coal Seams | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Channels | Split Coal | Rolls | Limestone Bosses | Clay Dikes | White Top | Igneous Dikes | Joints | Coal Balls | Miscellaneous Disturbances | Acknowledgments |