Petrology, paleontology and origin of the Clear Creek Chert (Lower Devonian) in Union and Jackson Counties, southwestern Illinois
Thesis (M.S.)--Southern Illinois University at Carbondale
Clear Creek Chert
Manuscripts, maps, fieldnotes, and photographs may be viewed in-house only. Please contact the ISGS Special Collections Curator, Anne Huber, for an appointment at 217-300-0005 or email firstname.lastname@example.org Monday thru Friday, 8am-noon or 1pm-5pm.