Timing of Late Quaternary Glaciations in the Western United States Based on the Age of Loess on the Eastern Snake River Plain, Idaho
Forman SL, Smith RP, Hackett WR, Tullis JA. 1993. Timing of Late Quaternary Glaciations in the Western United States Based on the Age of Loess on the Eastern Snake River Plain, Idaho. Quaternary Research. 40(1):30-37
We estimate that the penultimate loess depositional episode dates between 80,000 and 60,000 yr ago, which is significantly younger than previous age estimates of 140,000 to 150,000 yr based on stratigraphic position. We speculate that this period of loess deposition may correlate with documented early to middle Wisconsinan glaciation and a high stand of pluvial lakes in the Basin and Range province.
- Type
- Journal Article
- Authors
- Forman, Steven; Smith, Richard; Hackett, William; Tullis, Julia
- Units
- CRMO
- Keywords
- Basin and Range Province, ESRP, geochronology, glaciation, INEEL, INEL, INL, loess, radiocarbon, Stratigraphic studies, thermoluminescence