Rec | Mtg# | Year | Authors | Institution | Talk title |
---|---|---|---|---|---|
1 | 510 | 1934 | Edwin Thor McKnight | USGS | Origin of the zinc and lead deposits of northern Arkansas |
2 | 598 | 1941 | Edwin Thor McKnight | USGS | Zoning of ore deposits in the Tri-state district |
3 | 742 | 1954 | Edwin Thor McKnight | USGS | Geologic environment of ore deposition in the Tri-State region. (Presidential Address) |