Is the Devonian Chattanooga Shale Really a Volcanic Ash-Fall Deposit?: A Review of a Creation Research Society Quarterly Paper
Article by James L. Moore in the TalkOrigins Archive, looking at an article by Carl Froede Jr. in Creation Research Society Quarterly, whose these is that volcanic rocks contain sufficient primary uranium to account for the amount observed in the Chattanooga Shale.
Post on the Eye on the ICR blog, looking at John Morris's claim that the Chattanooga Shale was formed in the Biblical Flood.