Claims
Glacial Lake Missoula floods carved the Channeled Scabland about 18,500-15,000 years ago
Documented · occurred What these labels mean →Repeated outburst floods from Glacial Lake Missoula carved the Channeled Scabland of eastern Washington between about 18.5 and 15 ka. The source's pairing of these floods with a Lake Nipigon drainage at 12.8-12.9 ka is graded separately.
Evidence
| Relation | Record | Note |
|---|---|---|
| documents | pubs.usgs.gov | USGS, 'The Missoula and Bonneville floods—A review of ice-age megafloods in the Columbia River basin': Channeled Scabland; most floods between about 18.5 and 15 ka |
Sources
| Source | Relation | At |
|---|---|---|
| Hancock and Carlson on JRE 1897 (Younger Dryas) | reports |
Tied from
| From | Role | Years | Verdict | Source |
|---|---|---|---|---|
| Lake Agassiz drained east through the Nipigon area around 12.8-12.9 ka | same source, paired claim | Structural |
Claim
Repeated outburst floods from Glacial Lake Missoula carved the Channeled Scabland of eastern Washington between about 18.5 and 15 ka. The source's pairing of these floods with a Lake Nipigon drainage at 12.8-12.9 ka is graded separately.
The source paired these floods with a Lake Nipigon drainage at 12.8-12.9 ka. That is a separate, later event and is graded separately: Lake Agassiz drained east through the Nipigon area around 12.8-12.9 ka.