A chronology of Late-Pleistocene permafrost events in southern New Jersey, eastern USA
Permafrost and Periglacial Processes
By: H.M. French, M. Demitroff, S.L. Forman, and Wayne L. Newell
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Abstract
Frost fissures, filled with wind-abraded sand and mineral soil, and numerous small-scale non-diastrophic deformations, occur in the near-surface sediments of the Pine Barrens of southern New Jersey. The fissures are the result of thermal-contraction cracking and indicate the previous existence of either permafrost or seasonally-frozen ground. The deformations reflect thermokarst activity that occurred when permafrost degraded, icy layers melted and density-controlled mass displacements occurred in water-saturated sediments. Slopes and surficial materials of the area reflect these cold-climate conditions. Optically-stimulated luminescence permits construction of a tentative Late-Pleistocene permafrost chronology. This indicates Illinoian, Early-Wisconsinan and Late-Wisconsinan episodes of permafrost and/or deep seasonal frost and a Middle-Wisconsinan thermokarst event. Copyright ?? 2007 John Wiley & Sons, Ltd.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | A chronology of Late-Pleistocene permafrost events in southern New Jersey, eastern USA |
| Series title | Permafrost and Periglacial Processes |
| DOI | 10.1002/ppp.572 |
| Volume | 18 |
| Issue | 1 |
| Year Published | 2007 |
| Language | English |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Permafrost and Periglacial Processes |
| First page | 49 |
| Last page | 59 |
| Google Analytic Metrics | Metrics page |