Claims
Lake Agassiz drained east through the Nipigon area around 12.8-12.9 ka
Unproven Contradicted by record What these labels mean →The source dates a Lake Agassiz/Nipigon outflow to roughly 12.8-12.9 ka, crediting James Teller. The literature puts the ~12.9 ka eastward drainage through the Thunder Bay area and the Nipigon drainage at about 11.3 ka.
Evidence
| Relation | Record | Note |
|---|---|---|
| contradicts | gsa.confex.com | GSA 2011 Annual Meeting abstract (session honoring James T. Teller): 'Two major episodes of eastward drainage, one through the Thunder Bay area at about 12.9 cal ka, and one through the Nipigon area at about 11.3 cal ka' |
Sources
| Source | Relation | At |
|---|---|---|
| Hancock and Carlson on JRE 1897 (Younger Dryas) | reports |
Ties
| To | Role | Years | Verdict | Source |
|---|---|---|---|---|
| Glacial Lake Missoula floods carved the Channeled Scabland about 18,500-15,000 years ago | same source, paired claim | Structural |
Mentioned in
Claim
The source dates a Lake Agassiz/Nipigon outflow to roughly 12.8-12.9 ka, crediting James Teller. The literature puts the ~12.9 ka eastward drainage through the Thunder Bay area and the Nipigon drainage at about 11.3 ka.
The record places the ~12.9 ka eastward drainage, the one linked to the start of the Younger Dryas, through the Thunder Bay area. The Nipigon drainage came later, at about 11.3 ka.